From: Johannes Thumshirn <jthumshirn@suse.de>
To: David Sterba <dsterba@suse.com>
Cc: Linux BTRFS Mailinglist <linux-btrfs@vger.kernel.org>,
Johannes Thumshirn <jthumshirn@suse.de>
Subject: [RFC PATCH 12/17] btrfs-progs: pass checksum type to btrfs_csum_data()
Date: Thu, 25 Jul 2019 11:33:59 +0200 [thread overview]
Message-ID: <e1ca8b3c89c7a07143928ba29a5eb7494fc60b53.1564046972.git.jthumshirn@suse.de> (raw)
In-Reply-To: <cover.1564046812.git.jthumshirn@suse.de>
In-Reply-To: <cover.1564046812.git.jthumshirn@suse.de>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
check/main.c | 6 ++++--
cmds/inspect-dump-super.c | 8 ++++----
cmds/rescue-chunk-recover.c | 10 ++++++----
convert/common.c | 5 +++--
disk-io.c | 39 +++++++++++++++++++++++++++------------
disk-io.h | 4 ++--
file-item.c | 7 +++++--
free-space-cache.c | 2 +-
image/main.c | 2 +-
9 files changed, 53 insertions(+), 30 deletions(-)
diff --git a/check/main.c b/check/main.c
index 92a7e40c1ebf..eabe328b6800 100644
--- a/check/main.c
+++ b/check/main.c
@@ -5581,6 +5581,7 @@ static int check_extent_csums(struct btrfs_root *root, u64 bytenr,
struct btrfs_fs_info *fs_info = root->fs_info;
u64 offset = 0;
u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
+ u16 csum_type = btrfs_super_csum_type(fs_info->super_copy);
char *data;
unsigned long csum_offset;
u32 csum;
@@ -5621,9 +5622,10 @@ static int check_extent_csums(struct btrfs_root *root, u64 bytenr,
csum = ~(u32)0;
tmp = offset + data_checked;
- csum = btrfs_csum_data((char *)data + tmp,
+ csum = btrfs_csum_data(csum_type,
+ (char *)data + tmp,
(u8 *)&csum, fs_info->sectorsize);
- btrfs_csum_final(csum, (u8 *)&csum);
+ btrfs_csum_final(csum_type, csum, (u8 *)&csum);
csum_offset = leaf_offset +
tmp / fs_info->sectorsize * csum_size;
diff --git a/cmds/inspect-dump-super.c b/cmds/inspect-dump-super.c
index 96ad3deca3d8..40019a6670ef 100644
--- a/cmds/inspect-dump-super.c
+++ b/cmds/inspect-dump-super.c
@@ -35,15 +35,15 @@
#include "kernel-lib/crc32c.h"
#include "common/help.h"
-static int check_csum_sblock(void *sb, int csum_size)
+static int check_csum_sblock(void *sb, int csum_size, u16 csum_type)
{
u8 result[BTRFS_CSUM_SIZE];
u32 crc = ~(u32)0;
- crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE,
+ crc = btrfs_csum_data(csum_type, (char *)sb + BTRFS_CSUM_SIZE,
(u8 *)&crc,
BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
- btrfs_csum_final(crc, result);
+ btrfs_csum_final(csum_type, crc, result);
return !memcmp(sb, &result, csum_size);
}
@@ -348,7 +348,7 @@ static void dump_superblock(struct btrfs_super_block *sb, int full)
if (csum_type != BTRFS_CSUM_TYPE_CRC32 ||
csum_size != btrfs_csum_sizes[BTRFS_CSUM_TYPE_CRC32])
printf(" [UNKNOWN CSUM TYPE OR SIZE]");
- else if (check_csum_sblock(sb, csum_size))
+ else if (check_csum_sblock(sb, csum_size, csum_type))
printf(" [match]");
else
printf(" [DON'T MATCH]");
diff --git a/cmds/rescue-chunk-recover.c b/cmds/rescue-chunk-recover.c
index 0fddb5dd8ead..cddae471f50c 100644
--- a/cmds/rescue-chunk-recover.c
+++ b/cmds/rescue-chunk-recover.c
@@ -1887,7 +1887,8 @@ static u64 calc_data_offset(struct btrfs_key *key,
return dev_offset + data_offset;
}
-static int check_one_csum(int fd, u64 start, u32 len, u32 tree_csum)
+static int check_one_csum(int fd, u64 start, u32 len, u32 tree_csum,
+ u16 csum_type)
{
char *data;
int ret = 0;
@@ -1902,8 +1903,8 @@ static int check_one_csum(int fd, u64 start, u32 len, u32 tree_csum)
goto out;
}
ret = 0;
- csum_result = btrfs_csum_data(data, (u8 *)&csum_result, len);
- btrfs_csum_final(csum_result, (u8 *)&csum_result);
+ csum_result = btrfs_csum_data(csum_type, data, (u8 *)&csum_result, len);
+ btrfs_csum_final(csum_type, csum_result, (u8 *)&csum_result);
if (csum_result != tree_csum)
ret = 1;
out:
@@ -2102,7 +2103,8 @@ next_csum:
devext->objectid, 1));
ret = check_one_csum(dev->fd, data_offset, blocksize,
- tree_csum);
+ tree_csum,
+ btrfs_super_csum_type(root->fs_info->super_copy));
if (ret < 0)
goto fail_out;
else if (ret > 0)
diff --git a/convert/common.c b/convert/common.c
index ab8e6b9f4749..894a6ee0ba90 100644
--- a/convert/common.c
+++ b/convert/common.c
@@ -63,12 +63,13 @@ static inline int write_temp_super(int fd, struct btrfs_super_block *sb,
u64 sb_bytenr)
{
u32 crc = ~(u32)0;
+ u16 csum_type = btrfs_super_csum_type(sb);
int ret;
- crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE,
+ crc = btrfs_csum_data(csum_type, (char *)sb + BTRFS_CSUM_SIZE,
(u8 *)&crc,
BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
- btrfs_csum_final(crc, &sb->csum[0]);
+ btrfs_csum_final(csum_type, crc, &sb->csum[0]);
ret = pwrite(fd, sb, BTRFS_SUPER_INFO_SIZE, sb_bytenr);
if (ret < BTRFS_SUPER_INFO_SIZE)
ret = (ret < 0 ? -errno : -EIO);
diff --git a/disk-io.c b/disk-io.c
index a0c37c569d58..7e538969c57a 100644
--- a/disk-io.c
+++ b/disk-io.c
@@ -138,14 +138,26 @@ static void print_tree_block_error(struct btrfs_fs_info *fs_info,
}
}
-u32 btrfs_csum_data(char *data, u8 *seed, size_t len)
+u32 btrfs_csum_data(u16 csum_type, char *data, u8 *seed, size_t len)
{
- return crc32c(*(u32*)seed, data, len);
+ switch (csum_type) {
+ case BTRFS_CSUM_TYPE_CRC32:
+ return crc32c(*(u32*)seed, data, len);
+ default: /* Not reached */
+ return ~(u32)0;
+ }
+
}
-void btrfs_csum_final(u32 crc, u8 *result)
+void btrfs_csum_final(u16 csum_type, u32 crc, u8 *result)
{
- put_unaligned_le32(~crc, result);
+ switch (csum_type) {
+ case BTRFS_CSUM_TYPE_CRC32:
+ put_unaligned_le32(~crc, result);
+ break;
+ default: /* Not reached */
+ break;
+ }
}
static int __csum_tree_block_size(struct extent_buffer *buf, u16 csum_size,
@@ -156,8 +168,9 @@ static int __csum_tree_block_size(struct extent_buffer *buf, u16 csum_size,
u32 crc = ~(u32)0;
len = buf->len - BTRFS_CSUM_SIZE;
- crc = btrfs_csum_data(buf->data + BTRFS_CSUM_SIZE, (u8 *)&crc, len);
- btrfs_csum_final(crc, result);
+ crc = btrfs_csum_data(csum_type, buf->data + BTRFS_CSUM_SIZE,
+ (u8 *)&crc, len);
+ btrfs_csum_final(csum_type, crc, result);
if (verify) {
if (memcmp_extent_buffer(buf, result, 0, csum_size)) {
@@ -1376,9 +1389,10 @@ int btrfs_check_super(struct btrfs_super_block *sb, unsigned sbflags)
csum_size = btrfs_csum_sizes[csum_type];
crc = ~(u32)0;
- crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc,
+ crc = btrfs_csum_data(csum_type,(char *)sb + BTRFS_CSUM_SIZE,
+ (u8 *)&crc,
BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
- btrfs_csum_final(crc, result);
+ btrfs_csum_final(csum_type, crc, result);
if (memcmp(result, sb->csum, csum_size)) {
error("superblock checksum mismatch");
@@ -1616,6 +1630,7 @@ static int write_dev_supers(struct btrfs_fs_info *fs_info,
u64 bytenr;
u32 crc;
int i, ret;
+ u16 csum_type = btrfs_super_csum_type(sb);
/*
* We need to write super block after all metadata written.
@@ -1631,9 +1646,9 @@ static int write_dev_supers(struct btrfs_fs_info *fs_info,
if (fs_info->super_bytenr != BTRFS_SUPER_INFO_OFFSET) {
btrfs_set_super_bytenr(sb, fs_info->super_bytenr);
crc = ~(u32)0;
- crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc,
+ crc = btrfs_csum_data(csum_type, (char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc,
BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
- btrfs_csum_final(crc, &sb->csum[0]);
+ btrfs_csum_final(csum_type, crc, &sb->csum[0]);
/*
* super_copy is BTRFS_SUPER_INFO_SIZE bytes and is
@@ -1667,9 +1682,9 @@ static int write_dev_supers(struct btrfs_fs_info *fs_info,
btrfs_set_super_bytenr(sb, bytenr);
crc = ~(u32)0;
- crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc,
+ crc = btrfs_csum_data(csum_type, (char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc,
BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
- btrfs_csum_final(crc, &sb->csum[0]);
+ btrfs_csum_final(csum_type, crc, &sb->csum[0]);
/*
* super_copy is BTRFS_SUPER_INFO_SIZE bytes and is
diff --git a/disk-io.h b/disk-io.h
index 92c87f28f8b2..4b5e9ea86385 100644
--- a/disk-io.h
+++ b/disk-io.h
@@ -186,8 +186,8 @@ int btrfs_free_fs_root(struct btrfs_root *root);
void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid);
int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
-u32 btrfs_csum_data(char *data, u8 *seed, size_t len);
-void btrfs_csum_final(u32 crc, u8 *result);
+u32 btrfs_csum_data(u16 csum_type, char *data, u8 *seed, size_t len);
+void btrfs_csum_final(u16 csum_type, u32 crc, u8 *result);
int btrfs_open_device(struct btrfs_device *dev);
int csum_tree_block_size(struct extent_buffer *buf, u16 csum_sectorsize,
diff --git a/file-item.c b/file-item.c
index 5f6548e9a74f..78fdcecd0bab 100644
--- a/file-item.c
+++ b/file-item.c
@@ -202,6 +202,9 @@ int btrfs_csum_file_block(struct btrfs_trans_handle *trans,
u16 csum_size =
btrfs_super_csum_size(root->fs_info->super_copy);
+ u16 csum_type =
+ btrfs_super_csum_type(root->fs_info->super_copy);
+
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@@ -312,8 +315,8 @@ csum:
item = (struct btrfs_csum_item *)((unsigned char *)item +
csum_offset * csum_size);
found:
- csum_result = btrfs_csum_data(data, (u8 *)&csum_result, len);
- btrfs_csum_final(csum_result, (u8 *)&csum_result);
+ csum_result = btrfs_csum_data(csum_type, data, (u8 *)&csum_result, len);
+ btrfs_csum_final(csum_type, csum_result, (u8 *)&csum_result);
if (csum_result == 0) {
printk("csum result is 0 for block %llu\n",
(unsigned long long)bytenr);
diff --git a/free-space-cache.c b/free-space-cache.c
index e872eb6a00db..8a57f86dc650 100644
--- a/free-space-cache.c
+++ b/free-space-cache.c
@@ -213,7 +213,7 @@ static int io_ctl_check_crc(struct io_ctl *io_ctl, int index)
io_ctl_map_page(io_ctl, 0);
crc = crc32c(crc, io_ctl->orig + offset,
io_ctl->root->fs_info->sectorsize - offset);
- btrfs_csum_final(crc, (u8 *)&crc);
+ put_unaligned_le32(~crc, (u8 *)&crc);
if (val != crc) {
printk("btrfs: csum mismatch on free space cache\n");
io_ctl_unmap_page(io_ctl);
diff --git a/image/main.c b/image/main.c
index 28ef1609b5ff..0c8ffede56f5 100644
--- a/image/main.c
+++ b/image/main.c
@@ -124,7 +124,7 @@ static void csum_block(u8 *buf, size_t len)
u8 result[btrfs_csum_sizes[BTRFS_CSUM_TYPE_CRC32]];
u32 crc = ~(u32)0;
crc = crc32c(crc, buf + BTRFS_CSUM_SIZE, len - BTRFS_CSUM_SIZE);
- btrfs_csum_final(crc, result);
+ put_unaligned_le32(~crc, result);
memcpy(buf, result, btrfs_csum_sizes[BTRFS_CSUM_TYPE_CRC32]);
}
--
2.16.4
next prev parent reply other threads:[~2019-07-25 9:34 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-25 9:33 [RFC PATCH 0/4] Support xxhash64 checksums Johannes Thumshirn
2019-07-25 9:33 ` [RFC PATCH 1/4] btrfs: turn checksum type define into a union Johannes Thumshirn
2019-07-25 11:08 ` Mike Fleetwood
2019-07-25 11:21 ` Johannes Thumshirn
2019-07-25 9:33 ` [RFC PATCH 2/4] btrfs: create structure to encode checksum type and length Johannes Thumshirn
2019-07-26 3:09 ` Su Yue
2019-07-30 17:25 ` David Sterba
2019-08-12 9:07 ` Nikolay Borisov
2019-08-19 9:15 ` Johannes Thumshirn
2019-07-25 9:33 ` [RFC PATCH 3/4] btrfs: use xxhash64 for checksumming Johannes Thumshirn
2019-07-25 12:02 ` Qu Wenruo
2019-07-25 14:18 ` Johannes Thumshirn
2019-07-26 13:45 ` David Sterba
2019-07-25 9:33 ` [RFC PATCH 4/4] btrfs: sysfs: export supported checksums Johannes Thumshirn
2019-07-30 17:19 ` David Sterba
2019-07-31 8:06 ` Johannes Thumshirn
2019-08-07 14:10 ` Johannes Thumshirn
2019-08-21 16:19 ` David Sterba
2019-08-12 9:19 ` Nikolay Borisov
2019-08-19 9:15 ` Johannes Thumshirn
2019-07-25 9:33 ` [RFC PATCH 05/17] btrfs-progs: add option for checksum type to mkfs Johannes Thumshirn
2019-07-30 17:36 ` David Sterba
2019-08-12 9:30 ` Nikolay Borisov
2019-07-25 9:33 ` [RFC PATCH 06/17] btrfs-progs: don't blindly assume crc32c in csum_tree_block_size() Johannes Thumshirn
2019-08-12 9:49 ` Nikolay Borisov
2019-07-25 9:33 ` [RFC PATCH 07/17] btrfs-progs: use btrfs_csum_data() in __csum_tree_block_size() Johannes Thumshirn
2019-07-30 17:37 ` David Sterba
2019-07-25 9:33 ` [RFC PATCH 08/17] btrfs-progs: cache csum_type in recover_control Johannes Thumshirn
2019-08-12 9:52 ` Nikolay Borisov
2019-07-25 9:33 ` [RFC PATCH 09/17] progs: pass in a btrfs_mkfs_config to write_temp_extent_buffer Johannes Thumshirn
2019-07-30 17:38 ` David Sterba
2019-08-12 9:56 ` Nikolay Borisov
2019-07-25 9:33 ` [RFC PATCH 10/17] btrfs-progs: add checksum type to checksumming functions Johannes Thumshirn
2019-08-12 10:21 ` Nikolay Borisov
2019-08-26 9:34 ` Johannes Thumshirn
2019-07-25 9:33 ` [RFC PATCH 11/17] btrfs-progs: don't assume checksums are always 4 bytes Johannes Thumshirn
2019-07-25 9:33 ` Johannes Thumshirn [this message]
2019-08-12 10:51 ` [RFC PATCH 12/17] btrfs-progs: pass checksum type to btrfs_csum_data() Nikolay Borisov
2019-08-20 9:12 ` Johannes Thumshirn
2019-07-25 9:34 ` [RFC PATCH 13/17] " Johannes Thumshirn
2019-07-25 9:34 ` [RFC PATCH 14/17] btrfs-progs: simplify update_block_csum() in btrfs-sb-mod.c Johannes Thumshirn
2019-08-12 10:53 ` Nikolay Borisov
2019-07-25 9:34 ` [RFC PATCH 15/17] btrfs-progs: update checksumming api Johannes Thumshirn
2019-07-25 9:34 ` [RFC PATCH 16/17] btrfs-progs: add xxhash sources Johannes Thumshirn
2019-07-25 9:34 ` [RFC PATCH 17/17] btrfs-progs: add xxhash64 as checksum algorithm Johannes Thumshirn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e1ca8b3c89c7a07143928ba29a5eb7494fc60b53.1564046972.git.jthumshirn@suse.de \
--to=jthumshirn@suse.de \
--cc=dsterba@suse.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.