* [PATCH 0/3] btrfs: ctree.he refactor
@ 2021-10-25 9:08 Qu Wenruo
2021-10-25 9:08 ` [PATCH 1/3] btrfs: move the remaining on-disk format to ondisk_format.h Qu Wenruo
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Qu Wenruo @ 2021-10-25 9:08 UTC (permalink / raw)
To: linux-btrfs
Btrfs is abusing ctree.h for almost everything which doesn't have a
better location to put its definitions.
This makes ctree.h super congested for both kernel and btrfs-progs.
Here is just several cleanups inspired by my WIP btrfs-fuse project.
Currently my read-only (and still WIP) btrfs-fuse only has a ctree.h
with less than 100 lines.
The read-only project is definitely going to be much smaller than
kernel, but there are several tricks I used to make ctree.h slim:
- Put ondisk-format into ondisk_format.h
- Put BTRFS_SET_GET_* macros into accessors.h
- Put message output functions into messages.h
So we will only really high level structure definitions in ctree.h
Unfortunately for kernel, we still have tons of function
definitions, which don't have proper headers for them.
But this is still a good direction to go.
Of course, any advice on the names of these new headers will be very
helpful.
Qu Wenruo (3):
btrfs: move the remaining on-disk format to ondisk_format.h
btrfs: move the BTRFS_SETGET_* functions to dedicated header
btrfs: move btrfs_printk() related macros to messages.h
fs/btrfs/accessors.h | 1004 ++++++++++++++++++++++++++++
fs/btrfs/ctree.h | 1340 +-------------------------------------
fs/btrfs/messages.h | 170 +++++
fs/btrfs/ondisk_format.h | 223 +++++++
4 files changed, 1400 insertions(+), 1337 deletions(-)
create mode 100644 fs/btrfs/accessors.h
create mode 100644 fs/btrfs/messages.h
create mode 100644 fs/btrfs/ondisk_format.h
--
2.33.1
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 1/3] btrfs: move the remaining on-disk format to ondisk_format.h
2021-10-25 9:08 [PATCH 0/3] btrfs: ctree.he refactor Qu Wenruo
@ 2021-10-25 9:08 ` Qu Wenruo
2021-10-25 9:08 ` [PATCH 2/3] btrfs: move the BTRFS_SETGET_* functions to dedicated header Qu Wenruo
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Qu Wenruo @ 2021-10-25 9:08 UTC (permalink / raw)
To: linux-btrfs
There are still some on-disk structures in ctree.h:
- btrfs_header
- btrfs_root_backup
- btrfs_super_block
- btrfs_item
- btrfs_leaf
- btrfs_key_ptr
- btrfs_node
Move the definition of them to a dedicated header, and add comment
explaining how btrfs ondisk schemas are split.
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
fs/btrfs/ctree.h | 210 +-----------------------------------
fs/btrfs/ondisk_format.h | 223 +++++++++++++++++++++++++++++++++++++++
2 files changed, 224 insertions(+), 209 deletions(-)
create mode 100644 fs/btrfs/ondisk_format.h
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index dc6a6173a2c0..6d32ad7d9a8d 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -20,7 +20,6 @@
#include <asm/unaligned.h>
#include <linux/pagemap.h>
#include <linux/btrfs.h>
-#include <linux/btrfs_tree.h>
#include <linux/workqueue.h>
#include <linux/security.h>
#include <linux/sizes.h>
@@ -28,6 +27,7 @@
#include <linux/refcount.h>
#include <linux/crc32c.h>
#include <linux/iomap.h>
+#include "ondisk_format.h"
#include "extent-io-tree.h"
#include "extent_io.h"
#include "extent_map.h"
@@ -50,8 +50,6 @@ struct btrfs_ordered_sum;
struct btrfs_ref;
struct btrfs_bio;
-#define BTRFS_MAGIC 0x4D5F53665248425FULL /* ascii _BHRfS_M, no null */
-
/*
* Maximum number of mirrors that can be available for all profiles counting
* the target device of dev-replace as one. During an active device replace
@@ -145,212 +143,6 @@ enum {
BTRFS_FS_STATE_DUMMY_FS_INFO,
};
-#define BTRFS_BACKREF_REV_MAX 256
-#define BTRFS_BACKREF_REV_SHIFT 56
-#define BTRFS_BACKREF_REV_MASK (((u64)BTRFS_BACKREF_REV_MAX - 1) << \
- BTRFS_BACKREF_REV_SHIFT)
-
-#define BTRFS_OLD_BACKREF_REV 0
-#define BTRFS_MIXED_BACKREF_REV 1
-
-/*
- * every tree block (leaf or node) starts with this header.
- */
-struct btrfs_header {
- /* these first four must match the super block */
- u8 csum[BTRFS_CSUM_SIZE];
- u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
- __le64 bytenr; /* which block this node is supposed to live in */
- __le64 flags;
-
- /* allowed to be different from the super from here on down */
- u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
- __le64 generation;
- __le64 owner;
- __le32 nritems;
- u8 level;
-} __attribute__ ((__packed__));
-
-/*
- * this is a very generous portion of the super block, giving us
- * room to translate 14 chunks with 3 stripes each.
- */
-#define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048
-
-/*
- * just in case we somehow lose the roots and are not able to mount,
- * we store an array of the roots from previous transactions
- * in the super.
- */
-#define BTRFS_NUM_BACKUP_ROOTS 4
-struct btrfs_root_backup {
- __le64 tree_root;
- __le64 tree_root_gen;
-
- __le64 chunk_root;
- __le64 chunk_root_gen;
-
- __le64 extent_root;
- __le64 extent_root_gen;
-
- __le64 fs_root;
- __le64 fs_root_gen;
-
- __le64 dev_root;
- __le64 dev_root_gen;
-
- __le64 csum_root;
- __le64 csum_root_gen;
-
- __le64 total_bytes;
- __le64 bytes_used;
- __le64 num_devices;
- /* future */
- __le64 unused_64[4];
-
- u8 tree_root_level;
- u8 chunk_root_level;
- u8 extent_root_level;
- u8 fs_root_level;
- u8 dev_root_level;
- u8 csum_root_level;
- /* future and to align */
- u8 unused_8[10];
-} __attribute__ ((__packed__));
-
-#define BTRFS_SUPER_INFO_OFFSET SZ_64K
-#define BTRFS_SUPER_INFO_SIZE 4096
-
-/*
- * the super block basically lists the main trees of the FS
- * it currently lacks any block count etc etc
- */
-struct btrfs_super_block {
- /* the first 4 fields must match struct btrfs_header */
- u8 csum[BTRFS_CSUM_SIZE];
- /* FS specific UUID, visible to user */
- u8 fsid[BTRFS_FSID_SIZE];
- __le64 bytenr; /* this block number */
- __le64 flags;
-
- /* allowed to be different from the btrfs_header from here own down */
- __le64 magic;
- __le64 generation;
- __le64 root;
- __le64 chunk_root;
- __le64 log_root;
-
- /* this will help find the new super based on the log root */
- __le64 log_root_transid;
- __le64 total_bytes;
- __le64 bytes_used;
- __le64 root_dir_objectid;
- __le64 num_devices;
- __le32 sectorsize;
- __le32 nodesize;
- __le32 __unused_leafsize;
- __le32 stripesize;
- __le32 sys_chunk_array_size;
- __le64 chunk_root_generation;
- __le64 compat_flags;
- __le64 compat_ro_flags;
- __le64 incompat_flags;
- __le16 csum_type;
- u8 root_level;
- u8 chunk_root_level;
- u8 log_root_level;
- struct btrfs_dev_item dev_item;
-
- char label[BTRFS_LABEL_SIZE];
-
- __le64 cache_generation;
- __le64 uuid_tree_generation;
-
- /* the UUID written into btree blocks */
- u8 metadata_uuid[BTRFS_FSID_SIZE];
-
- /* future expansion */
- __le64 reserved[28];
- u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
- struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS];
-
- /* Padded to 4096 bytes */
- u8 padding[565];
-} __attribute__ ((__packed__));
-static_assert(sizeof(struct btrfs_super_block) == BTRFS_SUPER_INFO_SIZE);
-
-/*
- * Compat flags that we support. If any incompat flags are set other than the
- * ones specified below then we will fail to mount
- */
-#define BTRFS_FEATURE_COMPAT_SUPP 0ULL
-#define BTRFS_FEATURE_COMPAT_SAFE_SET 0ULL
-#define BTRFS_FEATURE_COMPAT_SAFE_CLEAR 0ULL
-
-#define BTRFS_FEATURE_COMPAT_RO_SUPP \
- (BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE | \
- BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID | \
- BTRFS_FEATURE_COMPAT_RO_VERITY)
-
-#define BTRFS_FEATURE_COMPAT_RO_SAFE_SET 0ULL
-#define BTRFS_FEATURE_COMPAT_RO_SAFE_CLEAR 0ULL
-
-#define BTRFS_FEATURE_INCOMPAT_SUPP \
- (BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \
- BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL | \
- BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS | \
- BTRFS_FEATURE_INCOMPAT_BIG_METADATA | \
- BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO | \
- BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD | \
- BTRFS_FEATURE_INCOMPAT_RAID56 | \
- BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF | \
- BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA | \
- BTRFS_FEATURE_INCOMPAT_NO_HOLES | \
- BTRFS_FEATURE_INCOMPAT_METADATA_UUID | \
- BTRFS_FEATURE_INCOMPAT_RAID1C34 | \
- BTRFS_FEATURE_INCOMPAT_ZONED)
-
-#define BTRFS_FEATURE_INCOMPAT_SAFE_SET \
- (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF)
-#define BTRFS_FEATURE_INCOMPAT_SAFE_CLEAR 0ULL
-
-/*
- * A leaf is full of items. offset and size tell us where to find
- * the item in the leaf (relative to the start of the data area)
- */
-struct btrfs_item {
- struct btrfs_disk_key key;
- __le32 offset;
- __le32 size;
-} __attribute__ ((__packed__));
-
-/*
- * leaves have an item area and a data area:
- * [item0, item1....itemN] [free space] [dataN...data1, data0]
- *
- * The data is separate from the items to get the keys closer together
- * during searches.
- */
-struct btrfs_leaf {
- struct btrfs_header header;
- struct btrfs_item items[];
-} __attribute__ ((__packed__));
-
-/*
- * all non-leaf blocks are nodes, they hold only keys and pointers to
- * other blocks
- */
-struct btrfs_key_ptr {
- struct btrfs_disk_key key;
- __le64 blockptr;
- __le64 generation;
-} __attribute__ ((__packed__));
-
-struct btrfs_node {
- struct btrfs_header header;
- struct btrfs_key_ptr ptrs[];
-} __attribute__ ((__packed__));
-
/* Read ahead values for struct btrfs_path.reada */
enum {
READA_NONE,
diff --git a/fs/btrfs/ondisk_format.h b/fs/btrfs/ondisk_format.h
new file mode 100644
index 000000000000..c3beff624691
--- /dev/null
+++ b/fs/btrfs/ondisk_format.h
@@ -0,0 +1,223 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_ONDISK_FORMAT_H
+#define BTRFS_ONDISK_FORMAT_H
+
+#include <linux/types.h>
+/*
+ * Most btrfs on-disk format is exposed through btrfs_tree.h uapi header
+ * already, as SEARCH_TREE ioctl can expose the tree directly to user space.
+ */
+#include <linux/btrfs_tree.h>
+
+/* Only structures not exposed through tree search ioctl are kept here. */
+
+#define BTRFS_MAGIC 0x4D5F53665248425FULL /* ascii _BHRfS_M, no null */
+
+#define BTRFS_BACKREF_REV_MAX 256
+#define BTRFS_BACKREF_REV_SHIFT 56
+#define BTRFS_BACKREF_REV_MASK (((u64)BTRFS_BACKREF_REV_MAX - 1) << \
+ BTRFS_BACKREF_REV_SHIFT)
+
+#define BTRFS_OLD_BACKREF_REV 0
+#define BTRFS_MIXED_BACKREF_REV 1
+
+/*
+ * every tree block (leaf or node) starts with this header.
+ */
+struct btrfs_header {
+ /* these first four must match the super block */
+ u8 csum[BTRFS_CSUM_SIZE];
+ u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
+ __le64 bytenr; /* which block this node is supposed to live in */
+ __le64 flags;
+
+ /* allowed to be different from the super from here on down */
+ u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
+ __le64 generation;
+ __le64 owner;
+ __le32 nritems;
+ u8 level;
+} __attribute__ ((__packed__));
+
+/*
+ * this is a very generous portion of the super block, giving us
+ * room to translate 14 chunks with 3 stripes each.
+ */
+#define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048
+
+/*
+ * just in case we somehow lose the roots and are not able to mount,
+ * we store an array of the roots from previous transactions
+ * in the super.
+ */
+#define BTRFS_NUM_BACKUP_ROOTS 4
+struct btrfs_root_backup {
+ __le64 tree_root;
+ __le64 tree_root_gen;
+
+ __le64 chunk_root;
+ __le64 chunk_root_gen;
+
+ __le64 extent_root;
+ __le64 extent_root_gen;
+
+ __le64 fs_root;
+ __le64 fs_root_gen;
+
+ __le64 dev_root;
+ __le64 dev_root_gen;
+
+ __le64 csum_root;
+ __le64 csum_root_gen;
+
+ __le64 total_bytes;
+ __le64 bytes_used;
+ __le64 num_devices;
+ /* future */
+ __le64 unused_64[4];
+
+ u8 tree_root_level;
+ u8 chunk_root_level;
+ u8 extent_root_level;
+ u8 fs_root_level;
+ u8 dev_root_level;
+ u8 csum_root_level;
+ /* future and to align */
+ u8 unused_8[10];
+} __attribute__ ((__packed__));
+
+#define BTRFS_SUPER_INFO_OFFSET SZ_64K
+#define BTRFS_SUPER_INFO_SIZE 4096
+
+/*
+ * the super block basically lists the main trees of the FS
+ * it currently lacks any block count etc etc
+ */
+struct btrfs_super_block {
+ /* the first 4 fields must match struct btrfs_header */
+ u8 csum[BTRFS_CSUM_SIZE];
+ /* FS specific UUID, visible to user */
+ u8 fsid[BTRFS_FSID_SIZE];
+ __le64 bytenr; /* this block number */
+ __le64 flags;
+
+ /* allowed to be different from the btrfs_header from here own down */
+ __le64 magic;
+ __le64 generation;
+ __le64 root;
+ __le64 chunk_root;
+ __le64 log_root;
+
+ /* this will help find the new super based on the log root */
+ __le64 log_root_transid;
+ __le64 total_bytes;
+ __le64 bytes_used;
+ __le64 root_dir_objectid;
+ __le64 num_devices;
+ __le32 sectorsize;
+ __le32 nodesize;
+ __le32 __unused_leafsize;
+ __le32 stripesize;
+ __le32 sys_chunk_array_size;
+ __le64 chunk_root_generation;
+ __le64 compat_flags;
+ __le64 compat_ro_flags;
+ __le64 incompat_flags;
+ __le16 csum_type;
+ u8 root_level;
+ u8 chunk_root_level;
+ u8 log_root_level;
+ struct btrfs_dev_item dev_item;
+
+ char label[BTRFS_LABEL_SIZE];
+
+ __le64 cache_generation;
+ __le64 uuid_tree_generation;
+
+ /* the UUID written into btree blocks */
+ u8 metadata_uuid[BTRFS_FSID_SIZE];
+
+ /* future expansion */
+ __le64 reserved[28];
+ u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
+ struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS];
+
+ /* Padded to 4096 bytes */
+ u8 padding[565];
+} __attribute__ ((__packed__));
+static_assert(sizeof(struct btrfs_super_block) == BTRFS_SUPER_INFO_SIZE);
+
+/*
+ * Compat flags that we support. If any incompat flags are set other than the
+ * ones specified below then we will fail to mount
+ */
+#define BTRFS_FEATURE_COMPAT_SUPP 0ULL
+#define BTRFS_FEATURE_COMPAT_SAFE_SET 0ULL
+#define BTRFS_FEATURE_COMPAT_SAFE_CLEAR 0ULL
+
+#define BTRFS_FEATURE_COMPAT_RO_SUPP \
+ (BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE | \
+ BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID | \
+ BTRFS_FEATURE_COMPAT_RO_VERITY)
+
+#define BTRFS_FEATURE_COMPAT_RO_SAFE_SET 0ULL
+#define BTRFS_FEATURE_COMPAT_RO_SAFE_CLEAR 0ULL
+
+#define BTRFS_FEATURE_INCOMPAT_SUPP \
+ (BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \
+ BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL | \
+ BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS | \
+ BTRFS_FEATURE_INCOMPAT_BIG_METADATA | \
+ BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO | \
+ BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD | \
+ BTRFS_FEATURE_INCOMPAT_RAID56 | \
+ BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF | \
+ BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA | \
+ BTRFS_FEATURE_INCOMPAT_NO_HOLES | \
+ BTRFS_FEATURE_INCOMPAT_METADATA_UUID | \
+ BTRFS_FEATURE_INCOMPAT_RAID1C34 | \
+ BTRFS_FEATURE_INCOMPAT_ZONED)
+
+#define BTRFS_FEATURE_INCOMPAT_SAFE_SET \
+ (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF)
+#define BTRFS_FEATURE_INCOMPAT_SAFE_CLEAR 0ULL
+
+/*
+ * A leaf is full of items. offset and size tell us where to find
+ * the item in the leaf (relative to the start of the data area)
+ */
+struct btrfs_item {
+ struct btrfs_disk_key key;
+ __le32 offset;
+ __le32 size;
+} __attribute__ ((__packed__));
+
+/*
+ * leaves have an item area and a data area:
+ * [item0, item1....itemN] [free space] [dataN...data1, data0]
+ *
+ * The data is separate from the items to get the keys closer together
+ * during searches.
+ */
+struct btrfs_leaf {
+ struct btrfs_header header;
+ struct btrfs_item items[];
+} __attribute__ ((__packed__));
+
+/*
+ * all non-leaf blocks are nodes, they hold only keys and pointers to
+ * other blocks
+ */
+struct btrfs_key_ptr {
+ struct btrfs_disk_key key;
+ __le64 blockptr;
+ __le64 generation;
+} __attribute__ ((__packed__));
+
+struct btrfs_node {
+ struct btrfs_header header;
+ struct btrfs_key_ptr ptrs[];
+} __attribute__ ((__packed__));
+
+#endif
--
2.33.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/3] btrfs: move the BTRFS_SETGET_* functions to dedicated header
2021-10-25 9:08 [PATCH 0/3] btrfs: ctree.he refactor Qu Wenruo
2021-10-25 9:08 ` [PATCH 1/3] btrfs: move the remaining on-disk format to ondisk_format.h Qu Wenruo
@ 2021-10-25 9:08 ` Qu Wenruo
2021-10-25 9:08 ` [PATCH 3/3] btrfs: move btrfs_printk() related macros to messages.h Qu Wenruo
2021-10-25 14:19 ` [PATCH 0/3] btrfs: ctree.he refactor Josef Bacik
3 siblings, 0 replies; 5+ messages in thread
From: Qu Wenruo @ 2021-10-25 9:08 UTC (permalink / raw)
To: linux-btrfs
BTRFS_SETGET_* macros are defining accessors we use to do the endian
convert.
It's not really ideal to put so many similar lines in ctree.h, so move
them to a dedicated header, accessors.h.
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
fs/btrfs/accessors.h | 1004 ++++++++++++++++++++++++++++++++++++++++++
fs/btrfs/ctree.h | 967 +---------------------------------------
2 files changed, 1005 insertions(+), 966 deletions(-)
create mode 100644 fs/btrfs/accessors.h
diff --git a/fs/btrfs/accessors.h b/fs/btrfs/accessors.h
new file mode 100644
index 000000000000..8ed390aa4fce
--- /dev/null
+++ b/fs/btrfs/accessors.h
@@ -0,0 +1,1004 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_ACCESSORS_H
+#define BTRFS_ACCESSORS_H
+
+#include "ondisk_format.h"
+/* For extent_buffer */
+#include "extent_io.h"
+
+/*
+ * Various helpers to access the on-disk tree blocks
+ *
+ * We have extent_buffer structure to represent one tree block.
+ * But callers shouldn't just access extent_buffer directly, as we need to
+ * do endian convert and page mapping.
+ *
+ * To access one named structure, like btrfs_root_item, we need to either:
+ *
+ * - Get offset inside an tree block, then use accessors
+ *
+ * struct btrfs_root_item *ri;
+ * u64 generation;
+ *
+ * ri = btrfs_item_ptr(extent_buffer, slot, struct btrfs_root_item);
+ * generation = btrfs_disk_root_generation(tree_block, ri);
+ *
+ * - Copy the item into a memory, then use accessors on the memory directly
+ * This is also calle the "STACK" way.
+ *
+ * u8 buf[sizeof(struct btrfs_root_item)];
+ * u64 generation;
+ *
+ * read_extent_buffer(extent_buffer, btrfs_item_ptr_nr(extent_buffer, slot),
+ * buffer, sizeof(struct btrfs_root_item));
+ * btrfs_root_generation((struct btrfs_root_item *ri)(buf));
+ */
+
+struct btrfs_map_token {
+ struct extent_buffer *eb;
+ char *kaddr;
+ unsigned long offset;
+};
+
+static inline void btrfs_init_map_token(struct btrfs_map_token *token,
+ struct extent_buffer *eb)
+{
+ token->eb = eb;
+ token->kaddr = page_address(eb->pages[0]);
+ token->offset = 0;
+}
+
+/*
+ * Some macros to generate set/get functions for the struct fields.
+ * This assumes there is a lefoo_to_cpu() for every type, so lets make a simple
+ * one for u8:
+ */
+#define le8_to_cpu(v) (v)
+#define cpu_to_le8(v) (v)
+#define __le8 u8
+
+static inline u8 get_unaligned_le8(const void *p)
+{
+ return *(u8 *)p;
+}
+
+static inline void put_unaligned_le8(u8 val, void *p)
+{
+ *(u8 *)p = val;
+}
+
+#define read_eb_member(eb, ptr, type, member, result) (\
+ read_extent_buffer(eb, (char *)(result), \
+ ((unsigned long)(ptr)) + \
+ offsetof(type, member), \
+ sizeof(((type *)0)->member)))
+
+#define write_eb_member(eb, ptr, type, member, result) (\
+ write_extent_buffer(eb, (char *)(result), \
+ ((unsigned long)(ptr)) + \
+ offsetof(type, member), \
+ sizeof(((type *)0)->member)))
+
+#define DECLARE_BTRFS_SETGET_BITS(bits) \
+u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
+ const void *ptr, unsigned long off); \
+void btrfs_set_token_##bits(struct btrfs_map_token *token, \
+ const void *ptr, unsigned long off, \
+ u##bits val); \
+u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
+ const void *ptr, unsigned long off); \
+void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \
+ unsigned long off, u##bits val);
+
+DECLARE_BTRFS_SETGET_BITS(8)
+DECLARE_BTRFS_SETGET_BITS(16)
+DECLARE_BTRFS_SETGET_BITS(32)
+DECLARE_BTRFS_SETGET_BITS(64)
+
+#define BTRFS_SETGET_FUNCS(name, type, member, bits) \
+static inline u##bits btrfs_##name(const struct extent_buffer *eb, \
+ const type *s) \
+{ \
+ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
+ return btrfs_get_##bits(eb, s, offsetof(type, member)); \
+} \
+static inline void btrfs_set_##name(const struct extent_buffer *eb, type *s, \
+ u##bits val) \
+{ \
+ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
+ btrfs_set_##bits(eb, s, offsetof(type, member), val); \
+} \
+static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \
+ const type *s) \
+{ \
+ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
+ return btrfs_get_token_##bits(token, s, offsetof(type, member));\
+} \
+static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\
+ type *s, u##bits val) \
+{ \
+ BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
+ btrfs_set_token_##bits(token, s, offsetof(type, member), val); \
+}
+
+#define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
+static inline u##bits btrfs_##name(const struct extent_buffer *eb) \
+{ \
+ const type *p = page_address(eb->pages[0]) + \
+ offset_in_page(eb->start); \
+ return get_unaligned_le##bits(&p->member); \
+} \
+static inline void btrfs_set_##name(const struct extent_buffer *eb, \
+ u##bits val) \
+{ \
+ type *p = page_address(eb->pages[0]) + offset_in_page(eb->start); \
+ put_unaligned_le##bits(val, &p->member); \
+}
+
+#define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \
+static inline u##bits btrfs_##name(const type *s) \
+{ \
+ return get_unaligned_le##bits(&s->member); \
+} \
+static inline void btrfs_set_##name(type *s, u##bits val) \
+{ \
+ put_unaligned_le##bits(val, &s->member); \
+}
+
+
+BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64);
+BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64);
+BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32);
+BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32);
+BTRFS_SETGET_FUNCS(device_start_offset, struct btrfs_dev_item,
+ start_offset, 64);
+BTRFS_SETGET_FUNCS(device_sector_size, struct btrfs_dev_item, sector_size, 32);
+BTRFS_SETGET_FUNCS(device_id, struct btrfs_dev_item, devid, 64);
+BTRFS_SETGET_FUNCS(device_group, struct btrfs_dev_item, dev_group, 32);
+BTRFS_SETGET_FUNCS(device_seek_speed, struct btrfs_dev_item, seek_speed, 8);
+BTRFS_SETGET_FUNCS(device_bandwidth, struct btrfs_dev_item, bandwidth, 8);
+BTRFS_SETGET_FUNCS(device_generation, struct btrfs_dev_item, generation, 64);
+
+BTRFS_SETGET_STACK_FUNCS(stack_device_type, struct btrfs_dev_item, type, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_device_total_bytes, struct btrfs_dev_item,
+ total_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_device_bytes_used, struct btrfs_dev_item,
+ bytes_used, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_device_io_align, struct btrfs_dev_item,
+ io_align, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_device_io_width, struct btrfs_dev_item,
+ io_width, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_device_sector_size, struct btrfs_dev_item,
+ sector_size, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_device_id, struct btrfs_dev_item, devid, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_device_group, struct btrfs_dev_item,
+ dev_group, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_device_seek_speed, struct btrfs_dev_item,
+ seek_speed, 8);
+BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item,
+ bandwidth, 8);
+BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item,
+ generation, 64);
+
+static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d)
+{
+ return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid);
+}
+
+static inline unsigned long btrfs_device_fsid(struct btrfs_dev_item *d)
+{
+ return (unsigned long)d + offsetof(struct btrfs_dev_item, fsid);
+}
+
+BTRFS_SETGET_FUNCS(chunk_length, struct btrfs_chunk, length, 64);
+BTRFS_SETGET_FUNCS(chunk_owner, struct btrfs_chunk, owner, 64);
+BTRFS_SETGET_FUNCS(chunk_stripe_len, struct btrfs_chunk, stripe_len, 64);
+BTRFS_SETGET_FUNCS(chunk_io_align, struct btrfs_chunk, io_align, 32);
+BTRFS_SETGET_FUNCS(chunk_io_width, struct btrfs_chunk, io_width, 32);
+BTRFS_SETGET_FUNCS(chunk_sector_size, struct btrfs_chunk, sector_size, 32);
+BTRFS_SETGET_FUNCS(chunk_type, struct btrfs_chunk, type, 64);
+BTRFS_SETGET_FUNCS(chunk_num_stripes, struct btrfs_chunk, num_stripes, 16);
+BTRFS_SETGET_FUNCS(chunk_sub_stripes, struct btrfs_chunk, sub_stripes, 16);
+BTRFS_SETGET_FUNCS(stripe_devid, struct btrfs_stripe, devid, 64);
+BTRFS_SETGET_FUNCS(stripe_offset, struct btrfs_stripe, offset, 64);
+
+static inline char *btrfs_stripe_dev_uuid(struct btrfs_stripe *s)
+{
+ return (char *)s + offsetof(struct btrfs_stripe, dev_uuid);
+}
+
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_length, struct btrfs_chunk, length, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_owner, struct btrfs_chunk, owner, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_stripe_len, struct btrfs_chunk,
+ stripe_len, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_align, struct btrfs_chunk,
+ io_align, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_width, struct btrfs_chunk,
+ io_width, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_sector_size, struct btrfs_chunk,
+ sector_size, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_type, struct btrfs_chunk, type, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_num_stripes, struct btrfs_chunk,
+ num_stripes, 16);
+BTRFS_SETGET_STACK_FUNCS(stack_chunk_sub_stripes, struct btrfs_chunk,
+ sub_stripes, 16);
+BTRFS_SETGET_STACK_FUNCS(stack_stripe_devid, struct btrfs_stripe, devid, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_stripe_offset, struct btrfs_stripe, offset, 64);
+
+static inline struct btrfs_stripe *btrfs_stripe_nr(struct btrfs_chunk *c,
+ int nr)
+{
+ unsigned long offset = (unsigned long)c;
+ offset += offsetof(struct btrfs_chunk, stripe);
+ offset += nr * sizeof(struct btrfs_stripe);
+ return (struct btrfs_stripe *)offset;
+}
+
+static inline char *btrfs_stripe_dev_uuid_nr(struct btrfs_chunk *c, int nr)
+{
+ return btrfs_stripe_dev_uuid(btrfs_stripe_nr(c, nr));
+}
+
+static inline u64 btrfs_stripe_offset_nr(const struct extent_buffer *eb,
+ struct btrfs_chunk *c, int nr)
+{
+ return btrfs_stripe_offset(eb, btrfs_stripe_nr(c, nr));
+}
+
+static inline u64 btrfs_stripe_devid_nr(const struct extent_buffer *eb,
+ struct btrfs_chunk *c, int nr)
+{
+ return btrfs_stripe_devid(eb, btrfs_stripe_nr(c, nr));
+}
+
+/* struct btrfs_block_group_item */
+BTRFS_SETGET_STACK_FUNCS(stack_block_group_used, struct btrfs_block_group_item,
+ used, 64);
+BTRFS_SETGET_FUNCS(block_group_used, struct btrfs_block_group_item,
+ used, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_block_group_chunk_objectid,
+ struct btrfs_block_group_item, chunk_objectid, 64);
+
+BTRFS_SETGET_FUNCS(block_group_chunk_objectid,
+ struct btrfs_block_group_item, chunk_objectid, 64);
+BTRFS_SETGET_FUNCS(block_group_flags,
+ struct btrfs_block_group_item, flags, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_block_group_flags,
+ struct btrfs_block_group_item, flags, 64);
+
+/* struct btrfs_free_space_info */
+BTRFS_SETGET_FUNCS(free_space_extent_count, struct btrfs_free_space_info,
+ extent_count, 32);
+BTRFS_SETGET_FUNCS(free_space_flags, struct btrfs_free_space_info, flags, 32);
+
+/* struct btrfs_inode_ref */
+BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);
+BTRFS_SETGET_FUNCS(inode_ref_index, struct btrfs_inode_ref, index, 64);
+
+/* struct btrfs_inode_extref */
+BTRFS_SETGET_FUNCS(inode_extref_parent, struct btrfs_inode_extref,
+ parent_objectid, 64);
+BTRFS_SETGET_FUNCS(inode_extref_name_len, struct btrfs_inode_extref,
+ name_len, 16);
+BTRFS_SETGET_FUNCS(inode_extref_index, struct btrfs_inode_extref, index, 64);
+
+/* struct btrfs_inode_item */
+BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64);
+BTRFS_SETGET_FUNCS(inode_sequence, struct btrfs_inode_item, sequence, 64);
+BTRFS_SETGET_FUNCS(inode_transid, struct btrfs_inode_item, transid, 64);
+BTRFS_SETGET_FUNCS(inode_size, struct btrfs_inode_item, size, 64);
+BTRFS_SETGET_FUNCS(inode_nbytes, struct btrfs_inode_item, nbytes, 64);
+BTRFS_SETGET_FUNCS(inode_block_group, struct btrfs_inode_item, block_group, 64);
+BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);
+BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
+BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
+BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
+BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
+BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_generation, struct btrfs_inode_item,
+ generation, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_sequence, struct btrfs_inode_item,
+ sequence, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_transid, struct btrfs_inode_item,
+ transid, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_size, struct btrfs_inode_item, size, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_nbytes, struct btrfs_inode_item,
+ nbytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_block_group, struct btrfs_inode_item,
+ block_group, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_nlink, struct btrfs_inode_item, nlink, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_uid, struct btrfs_inode_item, uid, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64);
+BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64);
+BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_timespec_nsec, struct btrfs_timespec, nsec, 32);
+
+/* struct btrfs_dev_extent */
+BTRFS_SETGET_FUNCS(dev_extent_chunk_tree, struct btrfs_dev_extent,
+ chunk_tree, 64);
+BTRFS_SETGET_FUNCS(dev_extent_chunk_objectid, struct btrfs_dev_extent,
+ chunk_objectid, 64);
+BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent,
+ chunk_offset, 64);
+BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64);
+BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64);
+BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item,
+ generation, 64);
+BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64);
+
+BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8);
+
+static inline void btrfs_tree_block_key(const struct extent_buffer *eb,
+ struct btrfs_tree_block_info *item,
+ struct btrfs_disk_key *key)
+{
+ read_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
+}
+
+static inline void btrfs_set_tree_block_key(const struct extent_buffer *eb,
+ struct btrfs_tree_block_info *item,
+ struct btrfs_disk_key *key)
+{
+ write_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
+}
+
+BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref,
+ root, 64);
+BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref,
+ objectid, 64);
+BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref,
+ offset, 64);
+BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref,
+ count, 32);
+
+BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref,
+ count, 32);
+
+BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref,
+ type, 8);
+BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref,
+ offset, 64);
+
+static inline u32 btrfs_extent_inline_ref_size(int type)
+{
+ if (type == BTRFS_TREE_BLOCK_REF_KEY ||
+ type == BTRFS_SHARED_BLOCK_REF_KEY)
+ return sizeof(struct btrfs_extent_inline_ref);
+ if (type == BTRFS_SHARED_DATA_REF_KEY)
+ return sizeof(struct btrfs_shared_data_ref) +
+ sizeof(struct btrfs_extent_inline_ref);
+ if (type == BTRFS_EXTENT_DATA_REF_KEY)
+ return sizeof(struct btrfs_extent_data_ref) +
+ offsetof(struct btrfs_extent_inline_ref, offset);
+ return 0;
+}
+
+/* struct btrfs_node */
+BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64);
+BTRFS_SETGET_FUNCS(key_generation, struct btrfs_key_ptr, generation, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_key_blockptr, struct btrfs_key_ptr,
+ blockptr, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_key_generation, struct btrfs_key_ptr,
+ generation, 64);
+
+static inline u64 btrfs_node_blockptr(const struct extent_buffer *eb, int nr)
+{
+ unsigned long ptr;
+ ptr = offsetof(struct btrfs_node, ptrs) +
+ sizeof(struct btrfs_key_ptr) * nr;
+ return btrfs_key_blockptr(eb, (struct btrfs_key_ptr *)ptr);
+}
+
+static inline void btrfs_set_node_blockptr(const struct extent_buffer *eb,
+ int nr, u64 val)
+{
+ unsigned long ptr;
+ ptr = offsetof(struct btrfs_node, ptrs) +
+ sizeof(struct btrfs_key_ptr) * nr;
+ btrfs_set_key_blockptr(eb, (struct btrfs_key_ptr *)ptr, val);
+}
+
+static inline u64 btrfs_node_ptr_generation(const struct extent_buffer *eb, int nr)
+{
+ unsigned long ptr;
+ ptr = offsetof(struct btrfs_node, ptrs) +
+ sizeof(struct btrfs_key_ptr) * nr;
+ return btrfs_key_generation(eb, (struct btrfs_key_ptr *)ptr);
+}
+
+static inline void btrfs_set_node_ptr_generation(const struct extent_buffer *eb,
+ int nr, u64 val)
+{
+ unsigned long ptr;
+ ptr = offsetof(struct btrfs_node, ptrs) +
+ sizeof(struct btrfs_key_ptr) * nr;
+ btrfs_set_key_generation(eb, (struct btrfs_key_ptr *)ptr, val);
+}
+
+static inline unsigned long btrfs_node_key_ptr_offset(int nr)
+{
+ return offsetof(struct btrfs_node, ptrs) +
+ sizeof(struct btrfs_key_ptr) * nr;
+}
+
+void btrfs_node_key(const struct extent_buffer *eb,
+ struct btrfs_disk_key *disk_key, int nr);
+
+static inline void btrfs_set_node_key(const struct extent_buffer *eb,
+ struct btrfs_disk_key *disk_key, int nr)
+{
+ unsigned long ptr;
+ ptr = btrfs_node_key_ptr_offset(nr);
+ write_eb_member(eb, (struct btrfs_key_ptr *)ptr,
+ struct btrfs_key_ptr, key, disk_key);
+}
+
+/* struct btrfs_item */
+BTRFS_SETGET_FUNCS(item_offset, struct btrfs_item, offset, 32);
+BTRFS_SETGET_FUNCS(item_size, struct btrfs_item, size, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_item_offset, struct btrfs_item, offset, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_item_size, struct btrfs_item, size, 32);
+
+static inline unsigned long btrfs_item_nr_offset(int nr)
+{
+ return offsetof(struct btrfs_leaf, items) +
+ sizeof(struct btrfs_item) * nr;
+}
+
+static inline struct btrfs_item *btrfs_item_nr(int nr)
+{
+ return (struct btrfs_item *)btrfs_item_nr_offset(nr);
+}
+
+static inline u32 btrfs_item_end(const struct extent_buffer *eb,
+ struct btrfs_item *item)
+{
+ return btrfs_item_offset(eb, item) + btrfs_item_size(eb, item);
+}
+
+static inline u32 btrfs_item_end_nr(const struct extent_buffer *eb, int nr)
+{
+ return btrfs_item_end(eb, btrfs_item_nr(nr));
+}
+
+static inline u32 btrfs_item_offset_nr(const struct extent_buffer *eb, int nr)
+{
+ return btrfs_item_offset(eb, btrfs_item_nr(nr));
+}
+
+static inline u32 btrfs_item_size_nr(const struct extent_buffer *eb, int nr)
+{
+ return btrfs_item_size(eb, btrfs_item_nr(nr));
+}
+
+static inline void btrfs_item_key(const struct extent_buffer *eb,
+ struct btrfs_disk_key *disk_key, int nr)
+{
+ struct btrfs_item *item = btrfs_item_nr(nr);
+ read_eb_member(eb, item, struct btrfs_item, key, disk_key);
+}
+
+static inline void btrfs_set_item_key(struct extent_buffer *eb,
+ struct btrfs_disk_key *disk_key, int nr)
+{
+ struct btrfs_item *item = btrfs_item_nr(nr);
+ write_eb_member(eb, item, struct btrfs_item, key, disk_key);
+}
+
+BTRFS_SETGET_FUNCS(dir_log_end, struct btrfs_dir_log_item, end, 64);
+
+/*
+ * struct btrfs_root_ref
+ */
+BTRFS_SETGET_FUNCS(root_ref_dirid, struct btrfs_root_ref, dirid, 64);
+BTRFS_SETGET_FUNCS(root_ref_sequence, struct btrfs_root_ref, sequence, 64);
+BTRFS_SETGET_FUNCS(root_ref_name_len, struct btrfs_root_ref, name_len, 16);
+
+/* struct btrfs_dir_item */
+BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16);
+BTRFS_SETGET_FUNCS(dir_type, struct btrfs_dir_item, type, 8);
+BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16);
+BTRFS_SETGET_FUNCS(dir_transid, struct btrfs_dir_item, transid, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dir_type, struct btrfs_dir_item, type, 8);
+BTRFS_SETGET_STACK_FUNCS(stack_dir_data_len, struct btrfs_dir_item,
+ data_len, 16);
+BTRFS_SETGET_STACK_FUNCS(stack_dir_name_len, struct btrfs_dir_item,
+ name_len, 16);
+BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item,
+ transid, 64);
+
+static inline void btrfs_dir_item_key(const struct extent_buffer *eb,
+ const struct btrfs_dir_item *item,
+ struct btrfs_disk_key *key)
+{
+ read_eb_member(eb, item, struct btrfs_dir_item, location, key);
+}
+
+static inline void btrfs_set_dir_item_key(struct extent_buffer *eb,
+ struct btrfs_dir_item *item,
+ const struct btrfs_disk_key *key)
+{
+ write_eb_member(eb, item, struct btrfs_dir_item, location, key);
+}
+
+BTRFS_SETGET_FUNCS(free_space_entries, struct btrfs_free_space_header,
+ num_entries, 64);
+BTRFS_SETGET_FUNCS(free_space_bitmaps, struct btrfs_free_space_header,
+ num_bitmaps, 64);
+BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header,
+ generation, 64);
+
+static inline void btrfs_free_space_key(const struct extent_buffer *eb,
+ const struct btrfs_free_space_header *h,
+ struct btrfs_disk_key *key)
+{
+ read_eb_member(eb, h, struct btrfs_free_space_header, location, key);
+}
+
+static inline void btrfs_set_free_space_key(struct extent_buffer *eb,
+ struct btrfs_free_space_header *h,
+ const struct btrfs_disk_key *key)
+{
+ write_eb_member(eb, h, struct btrfs_free_space_header, location, key);
+}
+
+/* struct btrfs_disk_key */
+BTRFS_SETGET_STACK_FUNCS(disk_key_objectid, struct btrfs_disk_key,
+ objectid, 64);
+BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64);
+BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8);
+
+#ifdef __LITTLE_ENDIAN
+
+/*
+ * Optimized helpers for little-endian architectures where CPU and on-disk
+ * structures have the same endianness and we can skip conversions.
+ */
+
+static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu_key,
+ const struct btrfs_disk_key *disk_key)
+{
+ memcpy(cpu_key, disk_key, sizeof(struct btrfs_key));
+}
+
+static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk_key,
+ const struct btrfs_key *cpu_key)
+{
+ memcpy(disk_key, cpu_key, sizeof(struct btrfs_key));
+}
+
+static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
+ struct btrfs_key *cpu_key, int nr)
+{
+ struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
+
+ btrfs_node_key(eb, disk_key, nr);
+}
+
+static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
+ struct btrfs_key *cpu_key, int nr)
+{
+ struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
+
+ btrfs_item_key(eb, disk_key, nr);
+}
+
+static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
+ const struct btrfs_dir_item *item,
+ struct btrfs_key *cpu_key)
+{
+ struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
+
+ btrfs_dir_item_key(eb, item, disk_key);
+}
+
+#else
+
+static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
+ const struct btrfs_disk_key *disk)
+{
+ cpu->offset = le64_to_cpu(disk->offset);
+ cpu->type = disk->type;
+ cpu->objectid = le64_to_cpu(disk->objectid);
+}
+
+static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk,
+ const struct btrfs_key *cpu)
+{
+ disk->offset = cpu_to_le64(cpu->offset);
+ disk->type = cpu->type;
+ disk->objectid = cpu_to_le64(cpu->objectid);
+}
+
+static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
+ struct btrfs_key *key, int nr)
+{
+ struct btrfs_disk_key disk_key;
+ btrfs_node_key(eb, &disk_key, nr);
+ btrfs_disk_key_to_cpu(key, &disk_key);
+}
+
+static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
+ struct btrfs_key *key, int nr)
+{
+ struct btrfs_disk_key disk_key;
+ btrfs_item_key(eb, &disk_key, nr);
+ btrfs_disk_key_to_cpu(key, &disk_key);
+}
+
+static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
+ const struct btrfs_dir_item *item,
+ struct btrfs_key *key)
+{
+ struct btrfs_disk_key disk_key;
+ btrfs_dir_item_key(eb, item, &disk_key);
+ btrfs_disk_key_to_cpu(key, &disk_key);
+}
+
+#endif
+
+/* struct btrfs_header */
+BTRFS_SETGET_HEADER_FUNCS(header_bytenr, struct btrfs_header, bytenr, 64);
+BTRFS_SETGET_HEADER_FUNCS(header_generation, struct btrfs_header,
+ generation, 64);
+BTRFS_SETGET_HEADER_FUNCS(header_owner, struct btrfs_header, owner, 64);
+BTRFS_SETGET_HEADER_FUNCS(header_nritems, struct btrfs_header, nritems, 32);
+BTRFS_SETGET_HEADER_FUNCS(header_flags, struct btrfs_header, flags, 64);
+BTRFS_SETGET_HEADER_FUNCS(header_level, struct btrfs_header, level, 8);
+BTRFS_SETGET_STACK_FUNCS(stack_header_generation, struct btrfs_header,
+ generation, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_header_owner, struct btrfs_header, owner, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_header_nritems, struct btrfs_header,
+ nritems, 32);
+BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64);
+
+static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag)
+{
+ return (btrfs_header_flags(eb) & flag) == flag;
+}
+
+static inline void btrfs_set_header_flag(struct extent_buffer *eb, u64 flag)
+{
+ u64 flags = btrfs_header_flags(eb);
+ btrfs_set_header_flags(eb, flags | flag);
+}
+
+static inline void btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag)
+{
+ u64 flags = btrfs_header_flags(eb);
+ btrfs_set_header_flags(eb, flags & ~flag);
+}
+
+static inline int btrfs_header_backref_rev(const struct extent_buffer *eb)
+{
+ u64 flags = btrfs_header_flags(eb);
+ return flags >> BTRFS_BACKREF_REV_SHIFT;
+}
+
+static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb,
+ int rev)
+{
+ u64 flags = btrfs_header_flags(eb);
+ flags &= ~BTRFS_BACKREF_REV_MASK;
+ flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT;
+ btrfs_set_header_flags(eb, flags);
+}
+
+static inline int btrfs_is_leaf(const struct extent_buffer *eb)
+{
+ return btrfs_header_level(eb) == 0;
+}
+
+/* struct btrfs_root_item */
+BTRFS_SETGET_FUNCS(disk_root_generation, struct btrfs_root_item,
+ generation, 64);
+BTRFS_SETGET_FUNCS(disk_root_refs, struct btrfs_root_item, refs, 32);
+BTRFS_SETGET_FUNCS(disk_root_bytenr, struct btrfs_root_item, bytenr, 64);
+BTRFS_SETGET_FUNCS(disk_root_level, struct btrfs_root_item, level, 8);
+
+BTRFS_SETGET_STACK_FUNCS(root_generation, struct btrfs_root_item,
+ generation, 64);
+BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64);
+BTRFS_SETGET_STACK_FUNCS(root_drop_level, struct btrfs_root_item, drop_level, 8);
+BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8);
+BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64);
+BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);
+BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64);
+BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
+BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
+BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
+ last_snapshot, 64);
+BTRFS_SETGET_STACK_FUNCS(root_generation_v2, struct btrfs_root_item,
+ generation_v2, 64);
+BTRFS_SETGET_STACK_FUNCS(root_ctransid, struct btrfs_root_item,
+ ctransid, 64);
+BTRFS_SETGET_STACK_FUNCS(root_otransid, struct btrfs_root_item,
+ otransid, 64);
+BTRFS_SETGET_STACK_FUNCS(root_stransid, struct btrfs_root_item,
+ stransid, 64);
+BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item,
+ rtransid, 64);
+
+/* struct btrfs_root_backup */
+BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup,
+ tree_root, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_tree_root_gen, struct btrfs_root_backup,
+ tree_root_gen, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_tree_root_level, struct btrfs_root_backup,
+ tree_root_level, 8);
+
+BTRFS_SETGET_STACK_FUNCS(backup_chunk_root, struct btrfs_root_backup,
+ chunk_root, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_gen, struct btrfs_root_backup,
+ chunk_root_gen, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_level, struct btrfs_root_backup,
+ chunk_root_level, 8);
+
+BTRFS_SETGET_STACK_FUNCS(backup_extent_root, struct btrfs_root_backup,
+ extent_root, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_extent_root_gen, struct btrfs_root_backup,
+ extent_root_gen, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_extent_root_level, struct btrfs_root_backup,
+ extent_root_level, 8);
+
+BTRFS_SETGET_STACK_FUNCS(backup_fs_root, struct btrfs_root_backup,
+ fs_root, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_fs_root_gen, struct btrfs_root_backup,
+ fs_root_gen, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_fs_root_level, struct btrfs_root_backup,
+ fs_root_level, 8);
+
+BTRFS_SETGET_STACK_FUNCS(backup_dev_root, struct btrfs_root_backup,
+ dev_root, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_dev_root_gen, struct btrfs_root_backup,
+ dev_root_gen, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_dev_root_level, struct btrfs_root_backup,
+ dev_root_level, 8);
+
+BTRFS_SETGET_STACK_FUNCS(backup_csum_root, struct btrfs_root_backup,
+ csum_root, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_csum_root_gen, struct btrfs_root_backup,
+ csum_root_gen, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_csum_root_level, struct btrfs_root_backup,
+ csum_root_level, 8);
+BTRFS_SETGET_STACK_FUNCS(backup_total_bytes, struct btrfs_root_backup,
+ total_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_bytes_used, struct btrfs_root_backup,
+ bytes_used, 64);
+BTRFS_SETGET_STACK_FUNCS(backup_num_devices, struct btrfs_root_backup,
+ num_devices, 64);
+
+/* struct btrfs_balance_item */
+BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64);
+
+static inline void btrfs_balance_data(const struct extent_buffer *eb,
+ const struct btrfs_balance_item *bi,
+ struct btrfs_disk_balance_args *ba)
+{
+ read_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
+}
+
+static inline void btrfs_set_balance_data(struct extent_buffer *eb,
+ struct btrfs_balance_item *bi,
+ const struct btrfs_disk_balance_args *ba)
+{
+ write_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
+}
+
+static inline void btrfs_balance_meta(const struct extent_buffer *eb,
+ const struct btrfs_balance_item *bi,
+ struct btrfs_disk_balance_args *ba)
+{
+ read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
+}
+
+static inline void btrfs_set_balance_meta(struct extent_buffer *eb,
+ struct btrfs_balance_item *bi,
+ const struct btrfs_disk_balance_args *ba)
+{
+ write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
+}
+
+static inline void btrfs_balance_sys(const struct extent_buffer *eb,
+ const struct btrfs_balance_item *bi,
+ struct btrfs_disk_balance_args *ba)
+{
+ read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
+}
+
+static inline void btrfs_set_balance_sys(struct extent_buffer *eb,
+ struct btrfs_balance_item *bi,
+ const struct btrfs_disk_balance_args *ba)
+{
+ write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
+}
+
+/* struct btrfs_super_block */
+BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);
+BTRFS_SETGET_STACK_FUNCS(super_flags, struct btrfs_super_block, flags, 64);
+BTRFS_SETGET_STACK_FUNCS(super_generation, struct btrfs_super_block,
+ generation, 64);
+BTRFS_SETGET_STACK_FUNCS(super_root, struct btrfs_super_block, root, 64);
+BTRFS_SETGET_STACK_FUNCS(super_sys_array_size,
+ struct btrfs_super_block, sys_chunk_array_size, 32);
+BTRFS_SETGET_STACK_FUNCS(super_chunk_root_generation,
+ struct btrfs_super_block, chunk_root_generation, 64);
+BTRFS_SETGET_STACK_FUNCS(super_root_level, struct btrfs_super_block,
+ root_level, 8);
+BTRFS_SETGET_STACK_FUNCS(super_chunk_root, struct btrfs_super_block,
+ chunk_root, 64);
+BTRFS_SETGET_STACK_FUNCS(super_chunk_root_level, struct btrfs_super_block,
+ chunk_root_level, 8);
+BTRFS_SETGET_STACK_FUNCS(super_log_root, struct btrfs_super_block,
+ log_root, 64);
+BTRFS_SETGET_STACK_FUNCS(super_log_root_transid, struct btrfs_super_block,
+ log_root_transid, 64);
+BTRFS_SETGET_STACK_FUNCS(super_log_root_level, struct btrfs_super_block,
+ log_root_level, 8);
+BTRFS_SETGET_STACK_FUNCS(super_total_bytes, struct btrfs_super_block,
+ total_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(super_bytes_used, struct btrfs_super_block,
+ bytes_used, 64);
+BTRFS_SETGET_STACK_FUNCS(super_sectorsize, struct btrfs_super_block,
+ sectorsize, 32);
+BTRFS_SETGET_STACK_FUNCS(super_nodesize, struct btrfs_super_block,
+ nodesize, 32);
+BTRFS_SETGET_STACK_FUNCS(super_stripesize, struct btrfs_super_block,
+ stripesize, 32);
+BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block,
+ root_dir_objectid, 64);
+BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block,
+ num_devices, 64);
+BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block,
+ compat_flags, 64);
+BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block,
+ compat_ro_flags, 64);
+BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block,
+ incompat_flags, 64);
+BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block,
+ csum_type, 16);
+BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block,
+ cache_generation, 64);
+BTRFS_SETGET_STACK_FUNCS(super_magic, struct btrfs_super_block, magic, 64);
+BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block,
+ uuid_tree_generation, 64);
+
+/* struct btrfs_file_extent_item */
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_type, struct btrfs_file_extent_item,
+ type, 8);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr,
+ struct btrfs_file_extent_item, disk_bytenr, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_offset,
+ struct btrfs_file_extent_item, offset, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation,
+ struct btrfs_file_extent_item, generation, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes,
+ struct btrfs_file_extent_item, num_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_ram_bytes,
+ struct btrfs_file_extent_item, ram_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes,
+ struct btrfs_file_extent_item, disk_num_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,
+ struct btrfs_file_extent_item, compression, 8);
+
+BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8);
+BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item,
+ disk_bytenr, 64);
+BTRFS_SETGET_FUNCS(file_extent_generation, struct btrfs_file_extent_item,
+ generation, 64);
+BTRFS_SETGET_FUNCS(file_extent_disk_num_bytes, struct btrfs_file_extent_item,
+ disk_num_bytes, 64);
+BTRFS_SETGET_FUNCS(file_extent_offset, struct btrfs_file_extent_item,
+ offset, 64);
+BTRFS_SETGET_FUNCS(file_extent_num_bytes, struct btrfs_file_extent_item,
+ num_bytes, 64);
+BTRFS_SETGET_FUNCS(file_extent_ram_bytes, struct btrfs_file_extent_item,
+ ram_bytes, 64);
+BTRFS_SETGET_FUNCS(file_extent_compression, struct btrfs_file_extent_item,
+ compression, 8);
+BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item,
+ encryption, 8);
+BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,
+ other_encoding, 16);
+
+/* btrfs_qgroup_status_item */
+BTRFS_SETGET_FUNCS(qgroup_status_generation, struct btrfs_qgroup_status_item,
+ generation, 64);
+BTRFS_SETGET_FUNCS(qgroup_status_version, struct btrfs_qgroup_status_item,
+ version, 64);
+BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item,
+ flags, 64);
+BTRFS_SETGET_FUNCS(qgroup_status_rescan, struct btrfs_qgroup_status_item,
+ rescan, 64);
+
+/* btrfs_qgroup_info_item */
+BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item,
+ generation, 64);
+BTRFS_SETGET_FUNCS(qgroup_info_rfer, struct btrfs_qgroup_info_item, rfer, 64);
+BTRFS_SETGET_FUNCS(qgroup_info_rfer_cmpr, struct btrfs_qgroup_info_item,
+ rfer_cmpr, 64);
+BTRFS_SETGET_FUNCS(qgroup_info_excl, struct btrfs_qgroup_info_item, excl, 64);
+BTRFS_SETGET_FUNCS(qgroup_info_excl_cmpr, struct btrfs_qgroup_info_item,
+ excl_cmpr, 64);
+
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_generation,
+ struct btrfs_qgroup_info_item, generation, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer, struct btrfs_qgroup_info_item,
+ rfer, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer_cmpr,
+ struct btrfs_qgroup_info_item, rfer_cmpr, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl, struct btrfs_qgroup_info_item,
+ excl, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl_cmpr,
+ struct btrfs_qgroup_info_item, excl_cmpr, 64);
+
+/* btrfs_qgroup_limit_item */
+BTRFS_SETGET_FUNCS(qgroup_limit_flags, struct btrfs_qgroup_limit_item,
+ flags, 64);
+BTRFS_SETGET_FUNCS(qgroup_limit_max_rfer, struct btrfs_qgroup_limit_item,
+ max_rfer, 64);
+BTRFS_SETGET_FUNCS(qgroup_limit_max_excl, struct btrfs_qgroup_limit_item,
+ max_excl, 64);
+BTRFS_SETGET_FUNCS(qgroup_limit_rsv_rfer, struct btrfs_qgroup_limit_item,
+ rsv_rfer, 64);
+BTRFS_SETGET_FUNCS(qgroup_limit_rsv_excl, struct btrfs_qgroup_limit_item,
+ rsv_excl, 64);
+
+/* btrfs_dev_replace_item */
+BTRFS_SETGET_FUNCS(dev_replace_src_devid,
+ struct btrfs_dev_replace_item, src_devid, 64);
+BTRFS_SETGET_FUNCS(dev_replace_cont_reading_from_srcdev_mode,
+ struct btrfs_dev_replace_item, cont_reading_from_srcdev_mode,
+ 64);
+BTRFS_SETGET_FUNCS(dev_replace_replace_state, struct btrfs_dev_replace_item,
+ replace_state, 64);
+BTRFS_SETGET_FUNCS(dev_replace_time_started, struct btrfs_dev_replace_item,
+ time_started, 64);
+BTRFS_SETGET_FUNCS(dev_replace_time_stopped, struct btrfs_dev_replace_item,
+ time_stopped, 64);
+BTRFS_SETGET_FUNCS(dev_replace_num_write_errors, struct btrfs_dev_replace_item,
+ num_write_errors, 64);
+BTRFS_SETGET_FUNCS(dev_replace_num_uncorrectable_read_errors,
+ struct btrfs_dev_replace_item, num_uncorrectable_read_errors,
+ 64);
+BTRFS_SETGET_FUNCS(dev_replace_cursor_left, struct btrfs_dev_replace_item,
+ cursor_left, 64);
+BTRFS_SETGET_FUNCS(dev_replace_cursor_right, struct btrfs_dev_replace_item,
+ cursor_right, 64);
+
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_src_devid,
+ struct btrfs_dev_replace_item, src_devid, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cont_reading_from_srcdev_mode,
+ struct btrfs_dev_replace_item,
+ cont_reading_from_srcdev_mode, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_replace_state,
+ struct btrfs_dev_replace_item, replace_state, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_started,
+ struct btrfs_dev_replace_item, time_started, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_stopped,
+ struct btrfs_dev_replace_item, time_stopped, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_write_errors,
+ struct btrfs_dev_replace_item, num_write_errors, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_uncorrectable_read_errors,
+ struct btrfs_dev_replace_item,
+ num_uncorrectable_read_errors, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left,
+ struct btrfs_dev_replace_item, cursor_left, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,
+ struct btrfs_dev_replace_item, cursor_right, 64);
+
+/* helper function to cast into the data area of the leaf. */
+#define btrfs_item_ptr(leaf, slot, type) \
+ ((type *)(BTRFS_LEAF_DATA_OFFSET + \
+ btrfs_item_offset_nr(leaf, slot)))
+
+#define btrfs_item_ptr_offset(leaf, slot) \
+ ((unsigned long)(BTRFS_LEAF_DATA_OFFSET + \
+ btrfs_item_offset_nr(leaf, slot)))
+
+#endif
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 6d32ad7d9a8d..c3ec2eadfe20 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -28,6 +28,7 @@
#include <linux/crc32c.h>
#include <linux/iomap.h>
#include "ondisk_format.h"
+#include "accessors.h"
#include "extent-io-tree.h"
#include "extent_io.h"
#include "extent_map.h"
@@ -1328,119 +1329,9 @@ do { \
#define BTRFS_INODE_RO_FLAG_MASK (BTRFS_INODE_RO_VERITY)
-struct btrfs_map_token {
- struct extent_buffer *eb;
- char *kaddr;
- unsigned long offset;
-};
-
#define BTRFS_BYTES_TO_BLKS(fs_info, bytes) \
((bytes) >> (fs_info)->sectorsize_bits)
-static inline void btrfs_init_map_token(struct btrfs_map_token *token,
- struct extent_buffer *eb)
-{
- token->eb = eb;
- token->kaddr = page_address(eb->pages[0]);
- token->offset = 0;
-}
-
-/* some macros to generate set/get functions for the struct fields. This
- * assumes there is a lefoo_to_cpu for every type, so lets make a simple
- * one for u8:
- */
-#define le8_to_cpu(v) (v)
-#define cpu_to_le8(v) (v)
-#define __le8 u8
-
-static inline u8 get_unaligned_le8(const void *p)
-{
- return *(u8 *)p;
-}
-
-static inline void put_unaligned_le8(u8 val, void *p)
-{
- *(u8 *)p = val;
-}
-
-#define read_eb_member(eb, ptr, type, member, result) (\
- read_extent_buffer(eb, (char *)(result), \
- ((unsigned long)(ptr)) + \
- offsetof(type, member), \
- sizeof(((type *)0)->member)))
-
-#define write_eb_member(eb, ptr, type, member, result) (\
- write_extent_buffer(eb, (char *)(result), \
- ((unsigned long)(ptr)) + \
- offsetof(type, member), \
- sizeof(((type *)0)->member)))
-
-#define DECLARE_BTRFS_SETGET_BITS(bits) \
-u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
- const void *ptr, unsigned long off); \
-void btrfs_set_token_##bits(struct btrfs_map_token *token, \
- const void *ptr, unsigned long off, \
- u##bits val); \
-u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
- const void *ptr, unsigned long off); \
-void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \
- unsigned long off, u##bits val);
-
-DECLARE_BTRFS_SETGET_BITS(8)
-DECLARE_BTRFS_SETGET_BITS(16)
-DECLARE_BTRFS_SETGET_BITS(32)
-DECLARE_BTRFS_SETGET_BITS(64)
-
-#define BTRFS_SETGET_FUNCS(name, type, member, bits) \
-static inline u##bits btrfs_##name(const struct extent_buffer *eb, \
- const type *s) \
-{ \
- BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
- return btrfs_get_##bits(eb, s, offsetof(type, member)); \
-} \
-static inline void btrfs_set_##name(const struct extent_buffer *eb, type *s, \
- u##bits val) \
-{ \
- BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
- btrfs_set_##bits(eb, s, offsetof(type, member), val); \
-} \
-static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \
- const type *s) \
-{ \
- BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
- return btrfs_get_token_##bits(token, s, offsetof(type, member));\
-} \
-static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\
- type *s, u##bits val) \
-{ \
- BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
- btrfs_set_token_##bits(token, s, offsetof(type, member), val); \
-}
-
-#define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
-static inline u##bits btrfs_##name(const struct extent_buffer *eb) \
-{ \
- const type *p = page_address(eb->pages[0]) + \
- offset_in_page(eb->start); \
- return get_unaligned_le##bits(&p->member); \
-} \
-static inline void btrfs_set_##name(const struct extent_buffer *eb, \
- u##bits val) \
-{ \
- type *p = page_address(eb->pages[0]) + offset_in_page(eb->start); \
- put_unaligned_le##bits(val, &p->member); \
-}
-
-#define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \
-static inline u##bits btrfs_##name(const type *s) \
-{ \
- return get_unaligned_le##bits(&s->member); \
-} \
-static inline void btrfs_set_##name(type *s, u##bits val) \
-{ \
- put_unaligned_le##bits(val, &s->member); \
-}
-
static inline u64 btrfs_device_total_bytes(const struct extent_buffer *eb,
struct btrfs_dev_item *s)
{
@@ -1459,584 +1350,6 @@ static inline void btrfs_set_device_total_bytes(const struct extent_buffer *eb,
btrfs_set_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes), val);
}
-
-BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64);
-BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64);
-BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32);
-BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32);
-BTRFS_SETGET_FUNCS(device_start_offset, struct btrfs_dev_item,
- start_offset, 64);
-BTRFS_SETGET_FUNCS(device_sector_size, struct btrfs_dev_item, sector_size, 32);
-BTRFS_SETGET_FUNCS(device_id, struct btrfs_dev_item, devid, 64);
-BTRFS_SETGET_FUNCS(device_group, struct btrfs_dev_item, dev_group, 32);
-BTRFS_SETGET_FUNCS(device_seek_speed, struct btrfs_dev_item, seek_speed, 8);
-BTRFS_SETGET_FUNCS(device_bandwidth, struct btrfs_dev_item, bandwidth, 8);
-BTRFS_SETGET_FUNCS(device_generation, struct btrfs_dev_item, generation, 64);
-
-BTRFS_SETGET_STACK_FUNCS(stack_device_type, struct btrfs_dev_item, type, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_device_total_bytes, struct btrfs_dev_item,
- total_bytes, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_device_bytes_used, struct btrfs_dev_item,
- bytes_used, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_device_io_align, struct btrfs_dev_item,
- io_align, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_device_io_width, struct btrfs_dev_item,
- io_width, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_device_sector_size, struct btrfs_dev_item,
- sector_size, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_device_id, struct btrfs_dev_item, devid, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_device_group, struct btrfs_dev_item,
- dev_group, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_device_seek_speed, struct btrfs_dev_item,
- seek_speed, 8);
-BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item,
- bandwidth, 8);
-BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item,
- generation, 64);
-
-static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d)
-{
- return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid);
-}
-
-static inline unsigned long btrfs_device_fsid(struct btrfs_dev_item *d)
-{
- return (unsigned long)d + offsetof(struct btrfs_dev_item, fsid);
-}
-
-BTRFS_SETGET_FUNCS(chunk_length, struct btrfs_chunk, length, 64);
-BTRFS_SETGET_FUNCS(chunk_owner, struct btrfs_chunk, owner, 64);
-BTRFS_SETGET_FUNCS(chunk_stripe_len, struct btrfs_chunk, stripe_len, 64);
-BTRFS_SETGET_FUNCS(chunk_io_align, struct btrfs_chunk, io_align, 32);
-BTRFS_SETGET_FUNCS(chunk_io_width, struct btrfs_chunk, io_width, 32);
-BTRFS_SETGET_FUNCS(chunk_sector_size, struct btrfs_chunk, sector_size, 32);
-BTRFS_SETGET_FUNCS(chunk_type, struct btrfs_chunk, type, 64);
-BTRFS_SETGET_FUNCS(chunk_num_stripes, struct btrfs_chunk, num_stripes, 16);
-BTRFS_SETGET_FUNCS(chunk_sub_stripes, struct btrfs_chunk, sub_stripes, 16);
-BTRFS_SETGET_FUNCS(stripe_devid, struct btrfs_stripe, devid, 64);
-BTRFS_SETGET_FUNCS(stripe_offset, struct btrfs_stripe, offset, 64);
-
-static inline char *btrfs_stripe_dev_uuid(struct btrfs_stripe *s)
-{
- return (char *)s + offsetof(struct btrfs_stripe, dev_uuid);
-}
-
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_length, struct btrfs_chunk, length, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_owner, struct btrfs_chunk, owner, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_stripe_len, struct btrfs_chunk,
- stripe_len, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_align, struct btrfs_chunk,
- io_align, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_width, struct btrfs_chunk,
- io_width, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_sector_size, struct btrfs_chunk,
- sector_size, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_type, struct btrfs_chunk, type, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_num_stripes, struct btrfs_chunk,
- num_stripes, 16);
-BTRFS_SETGET_STACK_FUNCS(stack_chunk_sub_stripes, struct btrfs_chunk,
- sub_stripes, 16);
-BTRFS_SETGET_STACK_FUNCS(stack_stripe_devid, struct btrfs_stripe, devid, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_stripe_offset, struct btrfs_stripe, offset, 64);
-
-static inline struct btrfs_stripe *btrfs_stripe_nr(struct btrfs_chunk *c,
- int nr)
-{
- unsigned long offset = (unsigned long)c;
- offset += offsetof(struct btrfs_chunk, stripe);
- offset += nr * sizeof(struct btrfs_stripe);
- return (struct btrfs_stripe *)offset;
-}
-
-static inline char *btrfs_stripe_dev_uuid_nr(struct btrfs_chunk *c, int nr)
-{
- return btrfs_stripe_dev_uuid(btrfs_stripe_nr(c, nr));
-}
-
-static inline u64 btrfs_stripe_offset_nr(const struct extent_buffer *eb,
- struct btrfs_chunk *c, int nr)
-{
- return btrfs_stripe_offset(eb, btrfs_stripe_nr(c, nr));
-}
-
-static inline u64 btrfs_stripe_devid_nr(const struct extent_buffer *eb,
- struct btrfs_chunk *c, int nr)
-{
- return btrfs_stripe_devid(eb, btrfs_stripe_nr(c, nr));
-}
-
-/* struct btrfs_block_group_item */
-BTRFS_SETGET_STACK_FUNCS(stack_block_group_used, struct btrfs_block_group_item,
- used, 64);
-BTRFS_SETGET_FUNCS(block_group_used, struct btrfs_block_group_item,
- used, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_block_group_chunk_objectid,
- struct btrfs_block_group_item, chunk_objectid, 64);
-
-BTRFS_SETGET_FUNCS(block_group_chunk_objectid,
- struct btrfs_block_group_item, chunk_objectid, 64);
-BTRFS_SETGET_FUNCS(block_group_flags,
- struct btrfs_block_group_item, flags, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_block_group_flags,
- struct btrfs_block_group_item, flags, 64);
-
-/* struct btrfs_free_space_info */
-BTRFS_SETGET_FUNCS(free_space_extent_count, struct btrfs_free_space_info,
- extent_count, 32);
-BTRFS_SETGET_FUNCS(free_space_flags, struct btrfs_free_space_info, flags, 32);
-
-/* struct btrfs_inode_ref */
-BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);
-BTRFS_SETGET_FUNCS(inode_ref_index, struct btrfs_inode_ref, index, 64);
-
-/* struct btrfs_inode_extref */
-BTRFS_SETGET_FUNCS(inode_extref_parent, struct btrfs_inode_extref,
- parent_objectid, 64);
-BTRFS_SETGET_FUNCS(inode_extref_name_len, struct btrfs_inode_extref,
- name_len, 16);
-BTRFS_SETGET_FUNCS(inode_extref_index, struct btrfs_inode_extref, index, 64);
-
-/* struct btrfs_inode_item */
-BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64);
-BTRFS_SETGET_FUNCS(inode_sequence, struct btrfs_inode_item, sequence, 64);
-BTRFS_SETGET_FUNCS(inode_transid, struct btrfs_inode_item, transid, 64);
-BTRFS_SETGET_FUNCS(inode_size, struct btrfs_inode_item, size, 64);
-BTRFS_SETGET_FUNCS(inode_nbytes, struct btrfs_inode_item, nbytes, 64);
-BTRFS_SETGET_FUNCS(inode_block_group, struct btrfs_inode_item, block_group, 64);
-BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);
-BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
-BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
-BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
-BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
-BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_generation, struct btrfs_inode_item,
- generation, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_sequence, struct btrfs_inode_item,
- sequence, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_transid, struct btrfs_inode_item,
- transid, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_size, struct btrfs_inode_item, size, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_nbytes, struct btrfs_inode_item,
- nbytes, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_block_group, struct btrfs_inode_item,
- block_group, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_nlink, struct btrfs_inode_item, nlink, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_uid, struct btrfs_inode_item, uid, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64);
-BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64);
-BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_timespec_nsec, struct btrfs_timespec, nsec, 32);
-
-/* struct btrfs_dev_extent */
-BTRFS_SETGET_FUNCS(dev_extent_chunk_tree, struct btrfs_dev_extent,
- chunk_tree, 64);
-BTRFS_SETGET_FUNCS(dev_extent_chunk_objectid, struct btrfs_dev_extent,
- chunk_objectid, 64);
-BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent,
- chunk_offset, 64);
-BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64);
-BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64);
-BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item,
- generation, 64);
-BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64);
-
-BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8);
-
-static inline void btrfs_tree_block_key(const struct extent_buffer *eb,
- struct btrfs_tree_block_info *item,
- struct btrfs_disk_key *key)
-{
- read_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
-}
-
-static inline void btrfs_set_tree_block_key(const struct extent_buffer *eb,
- struct btrfs_tree_block_info *item,
- struct btrfs_disk_key *key)
-{
- write_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
-}
-
-BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref,
- root, 64);
-BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref,
- objectid, 64);
-BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref,
- offset, 64);
-BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref,
- count, 32);
-
-BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref,
- count, 32);
-
-BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref,
- type, 8);
-BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref,
- offset, 64);
-
-static inline u32 btrfs_extent_inline_ref_size(int type)
-{
- if (type == BTRFS_TREE_BLOCK_REF_KEY ||
- type == BTRFS_SHARED_BLOCK_REF_KEY)
- return sizeof(struct btrfs_extent_inline_ref);
- if (type == BTRFS_SHARED_DATA_REF_KEY)
- return sizeof(struct btrfs_shared_data_ref) +
- sizeof(struct btrfs_extent_inline_ref);
- if (type == BTRFS_EXTENT_DATA_REF_KEY)
- return sizeof(struct btrfs_extent_data_ref) +
- offsetof(struct btrfs_extent_inline_ref, offset);
- return 0;
-}
-
-/* struct btrfs_node */
-BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64);
-BTRFS_SETGET_FUNCS(key_generation, struct btrfs_key_ptr, generation, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_key_blockptr, struct btrfs_key_ptr,
- blockptr, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_key_generation, struct btrfs_key_ptr,
- generation, 64);
-
-static inline u64 btrfs_node_blockptr(const struct extent_buffer *eb, int nr)
-{
- unsigned long ptr;
- ptr = offsetof(struct btrfs_node, ptrs) +
- sizeof(struct btrfs_key_ptr) * nr;
- return btrfs_key_blockptr(eb, (struct btrfs_key_ptr *)ptr);
-}
-
-static inline void btrfs_set_node_blockptr(const struct extent_buffer *eb,
- int nr, u64 val)
-{
- unsigned long ptr;
- ptr = offsetof(struct btrfs_node, ptrs) +
- sizeof(struct btrfs_key_ptr) * nr;
- btrfs_set_key_blockptr(eb, (struct btrfs_key_ptr *)ptr, val);
-}
-
-static inline u64 btrfs_node_ptr_generation(const struct extent_buffer *eb, int nr)
-{
- unsigned long ptr;
- ptr = offsetof(struct btrfs_node, ptrs) +
- sizeof(struct btrfs_key_ptr) * nr;
- return btrfs_key_generation(eb, (struct btrfs_key_ptr *)ptr);
-}
-
-static inline void btrfs_set_node_ptr_generation(const struct extent_buffer *eb,
- int nr, u64 val)
-{
- unsigned long ptr;
- ptr = offsetof(struct btrfs_node, ptrs) +
- sizeof(struct btrfs_key_ptr) * nr;
- btrfs_set_key_generation(eb, (struct btrfs_key_ptr *)ptr, val);
-}
-
-static inline unsigned long btrfs_node_key_ptr_offset(int nr)
-{
- return offsetof(struct btrfs_node, ptrs) +
- sizeof(struct btrfs_key_ptr) * nr;
-}
-
-void btrfs_node_key(const struct extent_buffer *eb,
- struct btrfs_disk_key *disk_key, int nr);
-
-static inline void btrfs_set_node_key(const struct extent_buffer *eb,
- struct btrfs_disk_key *disk_key, int nr)
-{
- unsigned long ptr;
- ptr = btrfs_node_key_ptr_offset(nr);
- write_eb_member(eb, (struct btrfs_key_ptr *)ptr,
- struct btrfs_key_ptr, key, disk_key);
-}
-
-/* struct btrfs_item */
-BTRFS_SETGET_FUNCS(item_offset, struct btrfs_item, offset, 32);
-BTRFS_SETGET_FUNCS(item_size, struct btrfs_item, size, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_item_offset, struct btrfs_item, offset, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_item_size, struct btrfs_item, size, 32);
-
-static inline unsigned long btrfs_item_nr_offset(int nr)
-{
- return offsetof(struct btrfs_leaf, items) +
- sizeof(struct btrfs_item) * nr;
-}
-
-static inline struct btrfs_item *btrfs_item_nr(int nr)
-{
- return (struct btrfs_item *)btrfs_item_nr_offset(nr);
-}
-
-static inline u32 btrfs_item_end(const struct extent_buffer *eb,
- struct btrfs_item *item)
-{
- return btrfs_item_offset(eb, item) + btrfs_item_size(eb, item);
-}
-
-static inline u32 btrfs_item_end_nr(const struct extent_buffer *eb, int nr)
-{
- return btrfs_item_end(eb, btrfs_item_nr(nr));
-}
-
-static inline u32 btrfs_item_offset_nr(const struct extent_buffer *eb, int nr)
-{
- return btrfs_item_offset(eb, btrfs_item_nr(nr));
-}
-
-static inline u32 btrfs_item_size_nr(const struct extent_buffer *eb, int nr)
-{
- return btrfs_item_size(eb, btrfs_item_nr(nr));
-}
-
-static inline void btrfs_item_key(const struct extent_buffer *eb,
- struct btrfs_disk_key *disk_key, int nr)
-{
- struct btrfs_item *item = btrfs_item_nr(nr);
- read_eb_member(eb, item, struct btrfs_item, key, disk_key);
-}
-
-static inline void btrfs_set_item_key(struct extent_buffer *eb,
- struct btrfs_disk_key *disk_key, int nr)
-{
- struct btrfs_item *item = btrfs_item_nr(nr);
- write_eb_member(eb, item, struct btrfs_item, key, disk_key);
-}
-
-BTRFS_SETGET_FUNCS(dir_log_end, struct btrfs_dir_log_item, end, 64);
-
-/*
- * struct btrfs_root_ref
- */
-BTRFS_SETGET_FUNCS(root_ref_dirid, struct btrfs_root_ref, dirid, 64);
-BTRFS_SETGET_FUNCS(root_ref_sequence, struct btrfs_root_ref, sequence, 64);
-BTRFS_SETGET_FUNCS(root_ref_name_len, struct btrfs_root_ref, name_len, 16);
-
-/* struct btrfs_dir_item */
-BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16);
-BTRFS_SETGET_FUNCS(dir_type, struct btrfs_dir_item, type, 8);
-BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16);
-BTRFS_SETGET_FUNCS(dir_transid, struct btrfs_dir_item, transid, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dir_type, struct btrfs_dir_item, type, 8);
-BTRFS_SETGET_STACK_FUNCS(stack_dir_data_len, struct btrfs_dir_item,
- data_len, 16);
-BTRFS_SETGET_STACK_FUNCS(stack_dir_name_len, struct btrfs_dir_item,
- name_len, 16);
-BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item,
- transid, 64);
-
-static inline void btrfs_dir_item_key(const struct extent_buffer *eb,
- const struct btrfs_dir_item *item,
- struct btrfs_disk_key *key)
-{
- read_eb_member(eb, item, struct btrfs_dir_item, location, key);
-}
-
-static inline void btrfs_set_dir_item_key(struct extent_buffer *eb,
- struct btrfs_dir_item *item,
- const struct btrfs_disk_key *key)
-{
- write_eb_member(eb, item, struct btrfs_dir_item, location, key);
-}
-
-BTRFS_SETGET_FUNCS(free_space_entries, struct btrfs_free_space_header,
- num_entries, 64);
-BTRFS_SETGET_FUNCS(free_space_bitmaps, struct btrfs_free_space_header,
- num_bitmaps, 64);
-BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header,
- generation, 64);
-
-static inline void btrfs_free_space_key(const struct extent_buffer *eb,
- const struct btrfs_free_space_header *h,
- struct btrfs_disk_key *key)
-{
- read_eb_member(eb, h, struct btrfs_free_space_header, location, key);
-}
-
-static inline void btrfs_set_free_space_key(struct extent_buffer *eb,
- struct btrfs_free_space_header *h,
- const struct btrfs_disk_key *key)
-{
- write_eb_member(eb, h, struct btrfs_free_space_header, location, key);
-}
-
-/* struct btrfs_disk_key */
-BTRFS_SETGET_STACK_FUNCS(disk_key_objectid, struct btrfs_disk_key,
- objectid, 64);
-BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64);
-BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8);
-
-#ifdef __LITTLE_ENDIAN
-
-/*
- * Optimized helpers for little-endian architectures where CPU and on-disk
- * structures have the same endianness and we can skip conversions.
- */
-
-static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu_key,
- const struct btrfs_disk_key *disk_key)
-{
- memcpy(cpu_key, disk_key, sizeof(struct btrfs_key));
-}
-
-static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk_key,
- const struct btrfs_key *cpu_key)
-{
- memcpy(disk_key, cpu_key, sizeof(struct btrfs_key));
-}
-
-static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
- struct btrfs_key *cpu_key, int nr)
-{
- struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
-
- btrfs_node_key(eb, disk_key, nr);
-}
-
-static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
- struct btrfs_key *cpu_key, int nr)
-{
- struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
-
- btrfs_item_key(eb, disk_key, nr);
-}
-
-static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
- const struct btrfs_dir_item *item,
- struct btrfs_key *cpu_key)
-{
- struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
-
- btrfs_dir_item_key(eb, item, disk_key);
-}
-
-#else
-
-static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
- const struct btrfs_disk_key *disk)
-{
- cpu->offset = le64_to_cpu(disk->offset);
- cpu->type = disk->type;
- cpu->objectid = le64_to_cpu(disk->objectid);
-}
-
-static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk,
- const struct btrfs_key *cpu)
-{
- disk->offset = cpu_to_le64(cpu->offset);
- disk->type = cpu->type;
- disk->objectid = cpu_to_le64(cpu->objectid);
-}
-
-static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
- struct btrfs_key *key, int nr)
-{
- struct btrfs_disk_key disk_key;
- btrfs_node_key(eb, &disk_key, nr);
- btrfs_disk_key_to_cpu(key, &disk_key);
-}
-
-static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
- struct btrfs_key *key, int nr)
-{
- struct btrfs_disk_key disk_key;
- btrfs_item_key(eb, &disk_key, nr);
- btrfs_disk_key_to_cpu(key, &disk_key);
-}
-
-static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
- const struct btrfs_dir_item *item,
- struct btrfs_key *key)
-{
- struct btrfs_disk_key disk_key;
- btrfs_dir_item_key(eb, item, &disk_key);
- btrfs_disk_key_to_cpu(key, &disk_key);
-}
-
-#endif
-
-/* struct btrfs_header */
-BTRFS_SETGET_HEADER_FUNCS(header_bytenr, struct btrfs_header, bytenr, 64);
-BTRFS_SETGET_HEADER_FUNCS(header_generation, struct btrfs_header,
- generation, 64);
-BTRFS_SETGET_HEADER_FUNCS(header_owner, struct btrfs_header, owner, 64);
-BTRFS_SETGET_HEADER_FUNCS(header_nritems, struct btrfs_header, nritems, 32);
-BTRFS_SETGET_HEADER_FUNCS(header_flags, struct btrfs_header, flags, 64);
-BTRFS_SETGET_HEADER_FUNCS(header_level, struct btrfs_header, level, 8);
-BTRFS_SETGET_STACK_FUNCS(stack_header_generation, struct btrfs_header,
- generation, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_header_owner, struct btrfs_header, owner, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_header_nritems, struct btrfs_header,
- nritems, 32);
-BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64);
-
-static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag)
-{
- return (btrfs_header_flags(eb) & flag) == flag;
-}
-
-static inline void btrfs_set_header_flag(struct extent_buffer *eb, u64 flag)
-{
- u64 flags = btrfs_header_flags(eb);
- btrfs_set_header_flags(eb, flags | flag);
-}
-
-static inline void btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag)
-{
- u64 flags = btrfs_header_flags(eb);
- btrfs_set_header_flags(eb, flags & ~flag);
-}
-
-static inline int btrfs_header_backref_rev(const struct extent_buffer *eb)
-{
- u64 flags = btrfs_header_flags(eb);
- return flags >> BTRFS_BACKREF_REV_SHIFT;
-}
-
-static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb,
- int rev)
-{
- u64 flags = btrfs_header_flags(eb);
- flags &= ~BTRFS_BACKREF_REV_MASK;
- flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT;
- btrfs_set_header_flags(eb, flags);
-}
-
-static inline int btrfs_is_leaf(const struct extent_buffer *eb)
-{
- return btrfs_header_level(eb) == 0;
-}
-
-/* struct btrfs_root_item */
-BTRFS_SETGET_FUNCS(disk_root_generation, struct btrfs_root_item,
- generation, 64);
-BTRFS_SETGET_FUNCS(disk_root_refs, struct btrfs_root_item, refs, 32);
-BTRFS_SETGET_FUNCS(disk_root_bytenr, struct btrfs_root_item, bytenr, 64);
-BTRFS_SETGET_FUNCS(disk_root_level, struct btrfs_root_item, level, 8);
-
-BTRFS_SETGET_STACK_FUNCS(root_generation, struct btrfs_root_item,
- generation, 64);
-BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64);
-BTRFS_SETGET_STACK_FUNCS(root_drop_level, struct btrfs_root_item, drop_level, 8);
-BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8);
-BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64);
-BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);
-BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64);
-BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
-BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
-BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
- last_snapshot, 64);
-BTRFS_SETGET_STACK_FUNCS(root_generation_v2, struct btrfs_root_item,
- generation_v2, 64);
-BTRFS_SETGET_STACK_FUNCS(root_ctransid, struct btrfs_root_item,
- ctransid, 64);
-BTRFS_SETGET_STACK_FUNCS(root_otransid, struct btrfs_root_item,
- otransid, 64);
-BTRFS_SETGET_STACK_FUNCS(root_stransid, struct btrfs_root_item,
- stransid, 64);
-BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item,
- rtransid, 64);
-
static inline bool btrfs_root_readonly(const struct btrfs_root *root)
{
/* Byte-swap the constant at compile time, root_item::flags is LE */
@@ -2049,100 +1362,6 @@ static inline bool btrfs_root_dead(const struct btrfs_root *root)
return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_DEAD)) != 0;
}
-/* struct btrfs_root_backup */
-BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup,
- tree_root, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_tree_root_gen, struct btrfs_root_backup,
- tree_root_gen, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_tree_root_level, struct btrfs_root_backup,
- tree_root_level, 8);
-
-BTRFS_SETGET_STACK_FUNCS(backup_chunk_root, struct btrfs_root_backup,
- chunk_root, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_gen, struct btrfs_root_backup,
- chunk_root_gen, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_level, struct btrfs_root_backup,
- chunk_root_level, 8);
-
-BTRFS_SETGET_STACK_FUNCS(backup_extent_root, struct btrfs_root_backup,
- extent_root, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_extent_root_gen, struct btrfs_root_backup,
- extent_root_gen, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_extent_root_level, struct btrfs_root_backup,
- extent_root_level, 8);
-
-BTRFS_SETGET_STACK_FUNCS(backup_fs_root, struct btrfs_root_backup,
- fs_root, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_fs_root_gen, struct btrfs_root_backup,
- fs_root_gen, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_fs_root_level, struct btrfs_root_backup,
- fs_root_level, 8);
-
-BTRFS_SETGET_STACK_FUNCS(backup_dev_root, struct btrfs_root_backup,
- dev_root, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_dev_root_gen, struct btrfs_root_backup,
- dev_root_gen, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_dev_root_level, struct btrfs_root_backup,
- dev_root_level, 8);
-
-BTRFS_SETGET_STACK_FUNCS(backup_csum_root, struct btrfs_root_backup,
- csum_root, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_csum_root_gen, struct btrfs_root_backup,
- csum_root_gen, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_csum_root_level, struct btrfs_root_backup,
- csum_root_level, 8);
-BTRFS_SETGET_STACK_FUNCS(backup_total_bytes, struct btrfs_root_backup,
- total_bytes, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_bytes_used, struct btrfs_root_backup,
- bytes_used, 64);
-BTRFS_SETGET_STACK_FUNCS(backup_num_devices, struct btrfs_root_backup,
- num_devices, 64);
-
-/* struct btrfs_balance_item */
-BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64);
-
-static inline void btrfs_balance_data(const struct extent_buffer *eb,
- const struct btrfs_balance_item *bi,
- struct btrfs_disk_balance_args *ba)
-{
- read_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
-}
-
-static inline void btrfs_set_balance_data(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
- const struct btrfs_disk_balance_args *ba)
-{
- write_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
-}
-
-static inline void btrfs_balance_meta(const struct extent_buffer *eb,
- const struct btrfs_balance_item *bi,
- struct btrfs_disk_balance_args *ba)
-{
- read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
-}
-
-static inline void btrfs_set_balance_meta(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
- const struct btrfs_disk_balance_args *ba)
-{
- write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
-}
-
-static inline void btrfs_balance_sys(const struct extent_buffer *eb,
- const struct btrfs_balance_item *bi,
- struct btrfs_disk_balance_args *ba)
-{
- read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
-}
-
-static inline void btrfs_set_balance_sys(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
- const struct btrfs_disk_balance_args *ba)
-{
- write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
-}
-
static inline void
btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
const struct btrfs_disk_balance_args *disk)
@@ -2183,62 +1402,11 @@ btrfs_cpu_balance_args_to_disk(struct btrfs_disk_balance_args *disk,
disk->stripes_max = cpu_to_le32(cpu->stripes_max);
}
-/* struct btrfs_super_block */
-BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);
-BTRFS_SETGET_STACK_FUNCS(super_flags, struct btrfs_super_block, flags, 64);
-BTRFS_SETGET_STACK_FUNCS(super_generation, struct btrfs_super_block,
- generation, 64);
-BTRFS_SETGET_STACK_FUNCS(super_root, struct btrfs_super_block, root, 64);
-BTRFS_SETGET_STACK_FUNCS(super_sys_array_size,
- struct btrfs_super_block, sys_chunk_array_size, 32);
-BTRFS_SETGET_STACK_FUNCS(super_chunk_root_generation,
- struct btrfs_super_block, chunk_root_generation, 64);
-BTRFS_SETGET_STACK_FUNCS(super_root_level, struct btrfs_super_block,
- root_level, 8);
-BTRFS_SETGET_STACK_FUNCS(super_chunk_root, struct btrfs_super_block,
- chunk_root, 64);
-BTRFS_SETGET_STACK_FUNCS(super_chunk_root_level, struct btrfs_super_block,
- chunk_root_level, 8);
-BTRFS_SETGET_STACK_FUNCS(super_log_root, struct btrfs_super_block,
- log_root, 64);
-BTRFS_SETGET_STACK_FUNCS(super_log_root_transid, struct btrfs_super_block,
- log_root_transid, 64);
-BTRFS_SETGET_STACK_FUNCS(super_log_root_level, struct btrfs_super_block,
- log_root_level, 8);
-BTRFS_SETGET_STACK_FUNCS(super_total_bytes, struct btrfs_super_block,
- total_bytes, 64);
-BTRFS_SETGET_STACK_FUNCS(super_bytes_used, struct btrfs_super_block,
- bytes_used, 64);
-BTRFS_SETGET_STACK_FUNCS(super_sectorsize, struct btrfs_super_block,
- sectorsize, 32);
-BTRFS_SETGET_STACK_FUNCS(super_nodesize, struct btrfs_super_block,
- nodesize, 32);
-BTRFS_SETGET_STACK_FUNCS(super_stripesize, struct btrfs_super_block,
- stripesize, 32);
-BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block,
- root_dir_objectid, 64);
-BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block,
- num_devices, 64);
-BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block,
- compat_flags, 64);
-BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block,
- compat_ro_flags, 64);
-BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block,
- incompat_flags, 64);
-BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block,
- csum_type, 16);
-BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block,
- cache_generation, 64);
-BTRFS_SETGET_STACK_FUNCS(super_magic, struct btrfs_super_block, magic, 64);
-BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block,
- uuid_tree_generation, 64);
-
int btrfs_super_csum_size(const struct btrfs_super_block *s);
const char *btrfs_super_csum_name(u16 csum_type);
const char *btrfs_super_csum_driver(u16 csum_type);
size_t __attribute_const__ btrfs_get_num_csums(void);
-
/*
* The leaf data grows from end-to-front in the node.
* this returns the address of the start of the last item,
@@ -2253,24 +1421,6 @@ static inline unsigned int leaf_data_end(const struct extent_buffer *leaf)
return btrfs_item_offset_nr(leaf, nr - 1);
}
-/* struct btrfs_file_extent_item */
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_type, struct btrfs_file_extent_item,
- type, 8);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr,
- struct btrfs_file_extent_item, disk_bytenr, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_offset,
- struct btrfs_file_extent_item, offset, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation,
- struct btrfs_file_extent_item, generation, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes,
- struct btrfs_file_extent_item, num_bytes, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_ram_bytes,
- struct btrfs_file_extent_item, ram_bytes, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes,
- struct btrfs_file_extent_item, disk_num_bytes, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,
- struct btrfs_file_extent_item, compression, 8);
-
static inline unsigned long
btrfs_file_extent_inline_start(const struct btrfs_file_extent_item *e)
{
@@ -2282,26 +1432,6 @@ static inline u32 btrfs_file_extent_calc_inline_size(u32 datasize)
return BTRFS_FILE_EXTENT_INLINE_DATA_START + datasize;
}
-BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8);
-BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item,
- disk_bytenr, 64);
-BTRFS_SETGET_FUNCS(file_extent_generation, struct btrfs_file_extent_item,
- generation, 64);
-BTRFS_SETGET_FUNCS(file_extent_disk_num_bytes, struct btrfs_file_extent_item,
- disk_num_bytes, 64);
-BTRFS_SETGET_FUNCS(file_extent_offset, struct btrfs_file_extent_item,
- offset, 64);
-BTRFS_SETGET_FUNCS(file_extent_num_bytes, struct btrfs_file_extent_item,
- num_bytes, 64);
-BTRFS_SETGET_FUNCS(file_extent_ram_bytes, struct btrfs_file_extent_item,
- ram_bytes, 64);
-BTRFS_SETGET_FUNCS(file_extent_compression, struct btrfs_file_extent_item,
- compression, 8);
-BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item,
- encryption, 8);
-BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,
- other_encoding, 16);
-
/*
* this returns the number of bytes used by the item on disk, minus the
* size of any extent headers. If a file is compressed on disk, this is
@@ -2314,101 +1444,6 @@ static inline u32 btrfs_file_extent_inline_item_len(
return btrfs_item_size(eb, e) - BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
-/* btrfs_qgroup_status_item */
-BTRFS_SETGET_FUNCS(qgroup_status_generation, struct btrfs_qgroup_status_item,
- generation, 64);
-BTRFS_SETGET_FUNCS(qgroup_status_version, struct btrfs_qgroup_status_item,
- version, 64);
-BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item,
- flags, 64);
-BTRFS_SETGET_FUNCS(qgroup_status_rescan, struct btrfs_qgroup_status_item,
- rescan, 64);
-
-/* btrfs_qgroup_info_item */
-BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item,
- generation, 64);
-BTRFS_SETGET_FUNCS(qgroup_info_rfer, struct btrfs_qgroup_info_item, rfer, 64);
-BTRFS_SETGET_FUNCS(qgroup_info_rfer_cmpr, struct btrfs_qgroup_info_item,
- rfer_cmpr, 64);
-BTRFS_SETGET_FUNCS(qgroup_info_excl, struct btrfs_qgroup_info_item, excl, 64);
-BTRFS_SETGET_FUNCS(qgroup_info_excl_cmpr, struct btrfs_qgroup_info_item,
- excl_cmpr, 64);
-
-BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_generation,
- struct btrfs_qgroup_info_item, generation, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer, struct btrfs_qgroup_info_item,
- rfer, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer_cmpr,
- struct btrfs_qgroup_info_item, rfer_cmpr, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl, struct btrfs_qgroup_info_item,
- excl, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl_cmpr,
- struct btrfs_qgroup_info_item, excl_cmpr, 64);
-
-/* btrfs_qgroup_limit_item */
-BTRFS_SETGET_FUNCS(qgroup_limit_flags, struct btrfs_qgroup_limit_item,
- flags, 64);
-BTRFS_SETGET_FUNCS(qgroup_limit_max_rfer, struct btrfs_qgroup_limit_item,
- max_rfer, 64);
-BTRFS_SETGET_FUNCS(qgroup_limit_max_excl, struct btrfs_qgroup_limit_item,
- max_excl, 64);
-BTRFS_SETGET_FUNCS(qgroup_limit_rsv_rfer, struct btrfs_qgroup_limit_item,
- rsv_rfer, 64);
-BTRFS_SETGET_FUNCS(qgroup_limit_rsv_excl, struct btrfs_qgroup_limit_item,
- rsv_excl, 64);
-
-/* btrfs_dev_replace_item */
-BTRFS_SETGET_FUNCS(dev_replace_src_devid,
- struct btrfs_dev_replace_item, src_devid, 64);
-BTRFS_SETGET_FUNCS(dev_replace_cont_reading_from_srcdev_mode,
- struct btrfs_dev_replace_item, cont_reading_from_srcdev_mode,
- 64);
-BTRFS_SETGET_FUNCS(dev_replace_replace_state, struct btrfs_dev_replace_item,
- replace_state, 64);
-BTRFS_SETGET_FUNCS(dev_replace_time_started, struct btrfs_dev_replace_item,
- time_started, 64);
-BTRFS_SETGET_FUNCS(dev_replace_time_stopped, struct btrfs_dev_replace_item,
- time_stopped, 64);
-BTRFS_SETGET_FUNCS(dev_replace_num_write_errors, struct btrfs_dev_replace_item,
- num_write_errors, 64);
-BTRFS_SETGET_FUNCS(dev_replace_num_uncorrectable_read_errors,
- struct btrfs_dev_replace_item, num_uncorrectable_read_errors,
- 64);
-BTRFS_SETGET_FUNCS(dev_replace_cursor_left, struct btrfs_dev_replace_item,
- cursor_left, 64);
-BTRFS_SETGET_FUNCS(dev_replace_cursor_right, struct btrfs_dev_replace_item,
- cursor_right, 64);
-
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_src_devid,
- struct btrfs_dev_replace_item, src_devid, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cont_reading_from_srcdev_mode,
- struct btrfs_dev_replace_item,
- cont_reading_from_srcdev_mode, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_replace_state,
- struct btrfs_dev_replace_item, replace_state, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_started,
- struct btrfs_dev_replace_item, time_started, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_stopped,
- struct btrfs_dev_replace_item, time_stopped, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_write_errors,
- struct btrfs_dev_replace_item, num_write_errors, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_uncorrectable_read_errors,
- struct btrfs_dev_replace_item,
- num_uncorrectable_read_errors, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left,
- struct btrfs_dev_replace_item, cursor_left, 64);
-BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,
- struct btrfs_dev_replace_item, cursor_right, 64);
-
-/* helper function to cast into the data area of the leaf. */
-#define btrfs_item_ptr(leaf, slot, type) \
- ((type *)(BTRFS_LEAF_DATA_OFFSET + \
- btrfs_item_offset_nr(leaf, slot)))
-
-#define btrfs_item_ptr_offset(leaf, slot) \
- ((unsigned long)(BTRFS_LEAF_DATA_OFFSET + \
- btrfs_item_offset_nr(leaf, slot)))
-
static inline u32 btrfs_crc32c(u32 crc, const void *address, unsigned length)
{
return crc32c(crc, address, length);
--
2.33.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 3/3] btrfs: move btrfs_printk() related macros to messages.h
2021-10-25 9:08 [PATCH 0/3] btrfs: ctree.he refactor Qu Wenruo
2021-10-25 9:08 ` [PATCH 1/3] btrfs: move the remaining on-disk format to ondisk_format.h Qu Wenruo
2021-10-25 9:08 ` [PATCH 2/3] btrfs: move the BTRFS_SETGET_* functions to dedicated header Qu Wenruo
@ 2021-10-25 9:08 ` Qu Wenruo
2021-10-25 14:19 ` [PATCH 0/3] btrfs: ctree.he refactor Josef Bacik
3 siblings, 0 replies; 5+ messages in thread
From: Qu Wenruo @ 2021-10-25 9:08 UTC (permalink / raw)
To: linux-btrfs
This would further reduce the size of ctree.h.
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
fs/btrfs/ctree.h | 163 +-----------------------------------------
fs/btrfs/messages.h | 170 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 171 insertions(+), 162 deletions(-)
create mode 100644 fs/btrfs/messages.h
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index c3ec2eadfe20..5e52eb26c5b2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -29,6 +29,7 @@
#include <linux/iomap.h>
#include "ondisk_format.h"
#include "accessors.h"
+#include "messages.h"
#include "extent-io-tree.h"
#include "extent_io.h"
#include "extent_map.h"
@@ -2175,168 +2176,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait);
char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
u64 subvol_objectid);
-static inline __printf(2, 3) __cold
-void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
-{
-}
-
-#ifdef CONFIG_PRINTK
-__printf(2, 3)
-__cold
-void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
-#else
-#define btrfs_printk(fs_info, fmt, args...) \
- btrfs_no_printk(fs_info, fmt, ##args)
-#endif
-
-#define btrfs_emerg(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_EMERG fmt, ##args)
-#define btrfs_alert(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_ALERT fmt, ##args)
-#define btrfs_crit(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_CRIT fmt, ##args)
-#define btrfs_err(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_ERR fmt, ##args)
-#define btrfs_warn(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_WARNING fmt, ##args)
-#define btrfs_notice(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_NOTICE fmt, ##args)
-#define btrfs_info(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_INFO fmt, ##args)
-
-/*
- * Wrappers that use printk_in_rcu
- */
-#define btrfs_emerg_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_EMERG fmt, ##args)
-#define btrfs_alert_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_ALERT fmt, ##args)
-#define btrfs_crit_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_CRIT fmt, ##args)
-#define btrfs_err_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_ERR fmt, ##args)
-#define btrfs_warn_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_WARNING fmt, ##args)
-#define btrfs_notice_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
-#define btrfs_info_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args)
-
-/*
- * Wrappers that use a ratelimited printk_in_rcu
- */
-#define btrfs_emerg_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_EMERG fmt, ##args)
-#define btrfs_alert_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_ALERT fmt, ##args)
-#define btrfs_crit_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_CRIT fmt, ##args)
-#define btrfs_err_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_ERR fmt, ##args)
-#define btrfs_warn_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_WARNING fmt, ##args)
-#define btrfs_notice_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
-#define btrfs_info_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_INFO fmt, ##args)
-
-/*
- * Wrappers that use a ratelimited printk
- */
-#define btrfs_emerg_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_EMERG fmt, ##args)
-#define btrfs_alert_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_ALERT fmt, ##args)
-#define btrfs_crit_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_CRIT fmt, ##args)
-#define btrfs_err_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_ERR fmt, ##args)
-#define btrfs_warn_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_WARNING fmt, ##args)
-#define btrfs_notice_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_NOTICE fmt, ##args)
-#define btrfs_info_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_INFO fmt, ##args)
-
-#if defined(CONFIG_DYNAMIC_DEBUG)
-#define btrfs_debug(fs_info, fmt, args...) \
- _dynamic_func_call_no_desc(fmt, btrfs_printk, \
- fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
- _dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu, \
- fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
- _dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu, \
- fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl(fs_info, fmt, args...) \
- _dynamic_func_call_no_desc(fmt, btrfs_printk_ratelimited, \
- fs_info, KERN_DEBUG fmt, ##args)
-#elif defined(DEBUG)
-#define btrfs_debug(fs_info, fmt, args...) \
- btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl(fs_info, fmt, args...) \
- btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, ##args)
-#else
-#define btrfs_debug(fs_info, fmt, args...) \
- btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
- btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
- btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl(fs_info, fmt, args...) \
- btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
-#endif
-
-#define btrfs_printk_in_rcu(fs_info, fmt, args...) \
-do { \
- rcu_read_lock(); \
- btrfs_printk(fs_info, fmt, ##args); \
- rcu_read_unlock(); \
-} while (0)
-
-#define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \
-do { \
- rcu_read_lock(); \
- btrfs_no_printk(fs_info, fmt, ##args); \
- rcu_read_unlock(); \
-} while (0)
-
-#define btrfs_printk_ratelimited(fs_info, fmt, args...) \
-do { \
- static DEFINE_RATELIMIT_STATE(_rs, \
- DEFAULT_RATELIMIT_INTERVAL, \
- DEFAULT_RATELIMIT_BURST); \
- if (__ratelimit(&_rs)) \
- btrfs_printk(fs_info, fmt, ##args); \
-} while (0)
-
-#define btrfs_printk_rl_in_rcu(fs_info, fmt, args...) \
-do { \
- rcu_read_lock(); \
- btrfs_printk_ratelimited(fs_info, fmt, ##args); \
- rcu_read_unlock(); \
-} while (0)
-
-#ifdef CONFIG_BTRFS_ASSERT
-__cold __noreturn
-static inline void assertfail(const char *expr, const char *file, int line)
-{
- pr_err("assertion failed: %s, in %s:%d\n", expr, file, line);
- BUG();
-}
-
-#define ASSERT(expr) \
- (likely(expr) ? (void)0 : assertfail(#expr, __FILE__, __LINE__))
-
-#else
-static inline void assertfail(const char *expr, const char* file, int line) { }
-#define ASSERT(expr) (void)(expr)
-#endif
-
#if BITS_PER_LONG == 32
#define BTRFS_32BIT_MAX_FILE_SIZE (((u64)ULONG_MAX + 1) << PAGE_SHIFT)
/*
diff --git a/fs/btrfs/messages.h b/fs/btrfs/messages.h
new file mode 100644
index 000000000000..1b347f5ef6a1
--- /dev/null
+++ b/fs/btrfs/messages.h
@@ -0,0 +1,170 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_MESSAGES_H
+#define BTRFS_MESSAGES_H
+
+#include <linux/printk.h>
+
+static inline __printf(2, 3) __cold
+void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
+{
+}
+
+#ifdef CONFIG_PRINTK
+__printf(2, 3)
+__cold
+void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
+#else
+#define btrfs_printk(fs_info, fmt, args...) \
+ btrfs_no_printk(fs_info, fmt, ##args)
+#endif
+
+#define btrfs_emerg(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_EMERG fmt, ##args)
+#define btrfs_alert(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_ALERT fmt, ##args)
+#define btrfs_crit(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_CRIT fmt, ##args)
+#define btrfs_err(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_ERR fmt, ##args)
+#define btrfs_warn(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_WARNING fmt, ##args)
+#define btrfs_notice(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_NOTICE fmt, ##args)
+#define btrfs_info(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_INFO fmt, ##args)
+
+/*
+ * Wrappers that use printk_in_rcu
+ */
+#define btrfs_emerg_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_EMERG fmt, ##args)
+#define btrfs_alert_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_ALERT fmt, ##args)
+#define btrfs_crit_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_CRIT fmt, ##args)
+#define btrfs_err_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_ERR fmt, ##args)
+#define btrfs_warn_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_WARNING fmt, ##args)
+#define btrfs_notice_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
+#define btrfs_info_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args)
+
+/*
+ * Wrappers that use a ratelimited printk_in_rcu
+ */
+#define btrfs_emerg_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_EMERG fmt, ##args)
+#define btrfs_alert_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_ALERT fmt, ##args)
+#define btrfs_crit_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_CRIT fmt, ##args)
+#define btrfs_err_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_ERR fmt, ##args)
+#define btrfs_warn_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_WARNING fmt, ##args)
+#define btrfs_notice_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
+#define btrfs_info_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_INFO fmt, ##args)
+
+/*
+ * Wrappers that use a ratelimited printk
+ */
+#define btrfs_emerg_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_EMERG fmt, ##args)
+#define btrfs_alert_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_ALERT fmt, ##args)
+#define btrfs_crit_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_CRIT fmt, ##args)
+#define btrfs_err_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_ERR fmt, ##args)
+#define btrfs_warn_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_WARNING fmt, ##args)
+#define btrfs_notice_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_NOTICE fmt, ##args)
+#define btrfs_info_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_INFO fmt, ##args)
+
+#if defined(CONFIG_DYNAMIC_DEBUG)
+#define btrfs_debug(fs_info, fmt, args...) \
+ _dynamic_func_call_no_desc(fmt, btrfs_printk, \
+ fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
+ _dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu, \
+ fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
+ _dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu, \
+ fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl(fs_info, fmt, args...) \
+ _dynamic_func_call_no_desc(fmt, btrfs_printk_ratelimited, \
+ fs_info, KERN_DEBUG fmt, ##args)
+#elif defined(DEBUG)
+#define btrfs_debug(fs_info, fmt, args...) \
+ btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl(fs_info, fmt, args...) \
+ btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, ##args)
+#else
+#define btrfs_debug(fs_info, fmt, args...) \
+ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
+ btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
+ btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl(fs_info, fmt, args...) \
+ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
+#endif
+
+#define btrfs_printk_in_rcu(fs_info, fmt, args...) \
+do { \
+ rcu_read_lock(); \
+ btrfs_printk(fs_info, fmt, ##args); \
+ rcu_read_unlock(); \
+} while (0)
+
+#define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \
+do { \
+ rcu_read_lock(); \
+ btrfs_no_printk(fs_info, fmt, ##args); \
+ rcu_read_unlock(); \
+} while (0)
+
+#define btrfs_printk_ratelimited(fs_info, fmt, args...) \
+do { \
+ static DEFINE_RATELIMIT_STATE(_rs, \
+ DEFAULT_RATELIMIT_INTERVAL, \
+ DEFAULT_RATELIMIT_BURST); \
+ if (__ratelimit(&_rs)) \
+ btrfs_printk(fs_info, fmt, ##args); \
+} while (0)
+
+#define btrfs_printk_rl_in_rcu(fs_info, fmt, args...) \
+do { \
+ rcu_read_lock(); \
+ btrfs_printk_ratelimited(fs_info, fmt, ##args); \
+ rcu_read_unlock(); \
+} while (0)
+
+#ifdef CONFIG_BTRFS_ASSERT
+__cold __noreturn
+static inline void assertfail(const char *expr, const char *file, int line)
+{
+ pr_err("assertion failed: %s, in %s:%d\n", expr, file, line);
+ BUG();
+}
+
+#define ASSERT(expr) \
+ (likely(expr) ? (void)0 : assertfail(#expr, __FILE__, __LINE__))
+
+#else
+static inline void assertfail(const char *expr, const char* file, int line) { }
+#define ASSERT(expr) (void)(expr)
+#endif
+
+#endif
--
2.33.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH 0/3] btrfs: ctree.he refactor
2021-10-25 9:08 [PATCH 0/3] btrfs: ctree.he refactor Qu Wenruo
` (2 preceding siblings ...)
2021-10-25 9:08 ` [PATCH 3/3] btrfs: move btrfs_printk() related macros to messages.h Qu Wenruo
@ 2021-10-25 14:19 ` Josef Bacik
3 siblings, 0 replies; 5+ messages in thread
From: Josef Bacik @ 2021-10-25 14:19 UTC (permalink / raw)
To: Qu Wenruo; +Cc: linux-btrfs
On Mon, Oct 25, 2021 at 05:08:18PM +0800, Qu Wenruo wrote:
> Btrfs is abusing ctree.h for almost everything which doesn't have a
> better location to put its definitions.
>
> This makes ctree.h super congested for both kernel and btrfs-progs.
>
> Here is just several cleanups inspired by my WIP btrfs-fuse project.
>
> Currently my read-only (and still WIP) btrfs-fuse only has a ctree.h
> with less than 100 lines.
> The read-only project is definitely going to be much smaller than
> kernel, but there are several tricks I used to make ctree.h slim:
>
> - Put ondisk-format into ondisk_format.h
> - Put BTRFS_SET_GET_* macros into accessors.h
> - Put message output functions into messages.h
>
> So we will only really high level structure definitions in ctree.h
>
> Unfortunately for kernel, we still have tons of function
> definitions, which don't have proper headers for them.
>
> But this is still a good direction to go.
>
> Of course, any advice on the names of these new headers will be very
> helpful.
>
I hate it all because now I have to rebase my item changes onto this.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Thanks,
Josef
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-- links below jump to the message on this page --
2021-10-25 9:08 [PATCH 0/3] btrfs: ctree.he refactor Qu Wenruo
2021-10-25 9:08 ` [PATCH 1/3] btrfs: move the remaining on-disk format to ondisk_format.h Qu Wenruo
2021-10-25 9:08 ` [PATCH 2/3] btrfs: move the BTRFS_SETGET_* functions to dedicated header Qu Wenruo
2021-10-25 9:08 ` [PATCH 3/3] btrfs: move btrfs_printk() related macros to messages.h Qu Wenruo
2021-10-25 14:19 ` [PATCH 0/3] btrfs: ctree.he refactor Josef Bacik
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