reiserfs_commit_write() is always called with the write lock held.
Thus the current calls to reiserfs_write_lock() in this function are
acquiring the lock recursively.
We can safely drop them.
This also solves further assumptions for this lock to be really
released while calling reiserfs_write_unlock().
Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jeff Mahoney <jeffm@xxxxxxxx>
Cc: Chris Mason <chris.mason@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Alexander Beregalov <a.beregalov@xxxxxxxxx>
Cc: Laurent Riffard <laurent.riffard@xxxxxxx>
---
fs/reiserfs/inode.c | 11 ++---------
1 files changed, 2 insertions(+), 9 deletions(-)
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 853f4f6..965c8ea 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2795,7 +2795,6 @@ int reiserfs_commit_write(struct file *f, struct page *page,
*/
if (pos > inode->i_size) {
struct reiserfs_transaction_handle myth;
- reiserfs_write_lock(inode->i_sb);
/* If the file have grown beyond the border where it
can have a tail, unmark it as needing a tail
packing */
@@ -2806,10 +2805,9 @@ int reiserfs_commit_write(struct file *f, struct page *page,
REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask;
ret = journal_begin(&myth, inode->i_sb, 1);
- if (ret) {
- reiserfs_write_unlock(inode->i_sb);
+ if (ret)
goto journal_error;
- }
+
reiserfs_update_inode_transaction(inode);
inode->i_size = pos;
/*
@@ -2821,16 +2819,13 @@ int reiserfs_commit_write(struct file *f, struct page *page,
reiserfs_update_sd(&myth, inode);
update_sd = 1;
ret = journal_end(&myth, inode->i_sb, 1);
- reiserfs_write_unlock(inode->i_sb);
if (ret)
goto journal_error;
}
if (th) {
- reiserfs_write_lock(inode->i_sb);
if (!update_sd)
mark_inode_dirty(inode);
ret = reiserfs_end_persistent_transaction(th);
- reiserfs_write_unlock(inode->i_sb);
if (ret)
goto out;
}
@@ -2840,11 +2835,9 @@ int reiserfs_commit_write(struct file *f, struct page *page,
journal_error:
if (th) {
- reiserfs_write_lock(inode->i_sb);
if (!update_sd)
reiserfs_update_sd(th, inode);
ret = reiserfs_end_persistent_transaction(th);
- reiserfs_write_unlock(inode->i_sb);
}
return ret;
--
1.6.2.3
--
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