diff mbox

[5/6] Btrfs: fix wrong write range for filemap_fdatawrite_range()

Message ID 1405568654-22120-5-git-send-email-wangsl.fnst@cn.fujitsu.com (mailing list archive)
State Accepted
Headers show

Commit Message

Wang Shilong July 17, 2014, 3:44 a.m. UTC 
filemap_fdatawrite_range() expect the third arg to be @end
not @len, fix it.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
---
 fs/btrfs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

David Sterba July 24, 2014, 11:29 a.m. UTC | #1 
On Thu, Jul 17, 2014 at 11:44:13AM +0800, Wang Shilong wrote:
> filemap_fdatawrite_range() expect the third arg to be @end
> not @len, fix it.
> 
> Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>

Reviewed-by: David Sterba <dsterba@suse.cz>

Good catch.
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diff mbox

Patch

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e2c3d63..ed8b55c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7567,7 +7567,8 @@  static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
 	count = iov_iter_count(iter);
 	if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
 		     &BTRFS_I(inode)->runtime_flags))
-		filemap_fdatawrite_range(inode->i_mapping, offset, count);
+		filemap_fdatawrite_range(inode->i_mapping, offset,
+					 offset + count - 1);
 
 	if (rw & WRITE) {
 		/*