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Btrfs: fix transaction leak during fsync call

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If btrfs_log_dentry_safe() returns an error, we set ret to 1 and
fall through with the goal of committing the transaction. However,
in the case where the inode doesn't need a full sync, we would call
btrfs_wait_ordered_range() against the target range for our inode,
and if it returned an error, we would return without commiting or
ending the transaction.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Filipe Manana 2014-05-29 23:31:39 +01:00 committed by Chris Mason
parent d77815461f
commit b05fd8742f
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/file.c
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@ -2025,8 +2025,10 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
if (!full_sync) {
ret = btrfs_wait_ordered_range(inode, start,
end - start + 1);
if (ret)
if (ret) {
btrfs_end_transaction(trans, root);
goto out;
}
}
ret = btrfs_commit_transaction(trans, root);
} else {