From: Liu Bo <liubo2009@cn.fujitsu.com>
To: <linux-btrfs@vger.kernel.org>
Cc: <dave@jikos.cz>, <chris.mason@oracle.com>, <josef@redhat.com>
Subject: [PATCH 03/12] Btrfs: modify btrfs_drop_extents API
Date: Thu, 30 Jun 2011 15:36:23 +0800 [thread overview]
Message-ID: <1309419392-17770-4-git-send-email-liubo2009@cn.fujitsu.com> (raw)
In-Reply-To: <1309419392-17770-1-git-send-email-liubo2009@cn.fujitsu.com>
We want to use btrfs_drop_extent() in log code.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
---
fs/btrfs/ctree.h | 3 ++-
fs/btrfs/file.c | 9 +++++++--
fs/btrfs/inode.c | 6 +++---
fs/btrfs/ioctl.c | 4 ++--
fs/btrfs/tree-log.c | 2 +-
5 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 54fcc62..073fb37 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2604,7 +2604,8 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
int skip_pinned);
extern const struct file_operations btrfs_file_operations;
int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
- u64 start, u64 end, u64 *hint_byte, int drop_cache);
+ u64 start, u64 end, u64 *hint_byte, int drop_cache,
+ int log);
int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
struct inode *inode, u64 start, u64 end);
int btrfs_release_file(struct inode *inode, struct file *file);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index fa4ef18..3c434bb 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -547,7 +547,8 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
* is deleted from the tree.
*/
int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
- u64 start, u64 end, u64 *hint_byte, int drop_cache)
+ u64 start, u64 end, u64 *hint_byte, int drop_cache,
+ int log)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_buffer *leaf;
@@ -567,6 +568,10 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
int recow;
int ret;
+ /* drop the existed extents in log tree */
+ if (log)
+ root = root->log_root;
+
if (drop_cache)
btrfs_drop_extent_cache(inode, start, end - 1, 0);
@@ -747,7 +752,7 @@ next_slot:
extent_end - key.offset);
extent_end = ALIGN(extent_end,
root->sectorsize);
- } else if (disk_bytenr > 0) {
+ } else if (disk_bytenr > 0 && !log) {
ret = btrfs_free_extent(trans, root,
disk_bytenr, num_bytes, 0,
root->root_key.objectid,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6291445..ff9d4d1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -246,7 +246,7 @@ static noinline int cow_file_range_inline(struct btrfs_trans_handle *trans,
}
ret = btrfs_drop_extents(trans, inode, start, aligned_end,
- &hint_byte, 1);
+ &hint_byte, 1, 0);
BUG_ON(ret);
if (isize > actual_end)
@@ -1658,7 +1658,7 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
* with the others.
*/
ret = btrfs_drop_extents(trans, inode, file_pos, file_pos + num_bytes,
- &hint, 0);
+ &hint, 0, 0);
BUG_ON(ret);
ins.objectid = btrfs_ino(inode);
@@ -3517,7 +3517,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
err = btrfs_drop_extents(trans, inode, cur_offset,
cur_offset + hole_size,
- &hint_byte, 1);
+ &hint_byte, 1, 0);
if (err)
break;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 29026a7..72e1a98 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2339,7 +2339,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
ret = btrfs_drop_extents(trans, inode,
new_key.offset,
new_key.offset + datal,
- &hint_byte, 1);
+ &hint_byte, 1, 0);
BUG_ON(ret);
ret = btrfs_insert_empty_item(trans, root, path,
@@ -2394,7 +2394,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
ret = btrfs_drop_extents(trans, inode,
new_key.offset,
new_key.offset + datal,
- &hint_byte, 1);
+ &hint_byte, 1, 0);
BUG_ON(ret);
ret = btrfs_insert_empty_item(trans, root, path,
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 917fd07..b91fe8b 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -562,7 +562,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
saved_nbytes = inode_get_bytes(inode);
/* drop any overlapping extents */
ret = btrfs_drop_extents(trans, inode, start, extent_end,
- &alloc_hint, 1);
+ &alloc_hint, 1, 0);
BUG_ON(ret);
if (found_type == BTRFS_FILE_EXTENT_REG ||
--
1.6.5.2
next prev parent reply other threads:[~2011-06-30 7:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-30 7:36 [GIT PULL v4] Btrfs: improve write ahead log with sub transaction Liu Bo
2011-06-30 7:36 ` [PATCH 01/12] Btrfs: introduce sub transaction stuff Liu Bo
2011-06-30 7:36 ` [PATCH 02/12] Btrfs: update block generation if should_cow_block fails Liu Bo
2011-06-30 7:36 ` Liu Bo [this message]
2011-06-30 7:36 ` [PATCH 04/12] Btrfs: introduce first sub trans Liu Bo
2011-06-30 7:36 ` [PATCH 05/12] Btrfs: still update inode trans stuff when size remains unchanged Liu Bo
2011-06-30 7:36 ` [PATCH 06/12] Btrfs: improve log with sub transaction Liu Bo
2011-06-30 7:36 ` [PATCH 07/12] Btrfs: add checksum check for log Liu Bo
2011-06-30 7:36 ` [PATCH 08/12] Btrfs: fix a bug of log check Liu Bo
2011-06-30 7:36 ` [PATCH 09/12] Btrfs: kick off useless code Liu Bo
2011-06-30 7:36 ` [PATCH 10/12] Btrfs: use the right generation number to read log_root_tree Liu Bo
2011-06-30 7:36 ` [PATCH 11/12] Btrfs: do not iput inode when inode is still in log Liu Bo
2011-06-30 7:36 ` [PATCH 12/12] Revert "Btrfs: do not flush csum items of unchanged file data during treelog" Liu Bo
2011-06-30 9:27 ` [GIT PULL v4] Btrfs: improve write ahead log with sub transaction liubo
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