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authorChris Mason <chris.mason@oracle.com>2008-10-03 20:30:02 +0400
committerChris Mason <chris.mason@oracle.com>2008-10-03 20:30:02 +0400
commitcb843a6f513a1a91c54951005e60bd9b95bdf973 (patch)
tree12edfb1154691f1a8aaeeadb97899397574aa785 /fs/btrfs/ordered-data.c
parent323ac95bce442bbde514e3ce57e840402f80d909 (diff)
downloadlinux-cb843a6f513a1a91c54951005e60bd9b95bdf973.tar.xz
Btrfs: O_DIRECT writes via buffered writes + invaldiate
This reworks the btrfs O_DIRECT write code a bit. It had always fallen back to buffered IO and done an invalidate, but needed to be updated for the data=ordered code. The invalidate wasn't actually removing pages because they were still inside an ordered extent. This also combines the O_DIRECT/O_SYNC paths where possible, and kicks off IO in the main btrfs_file_write loop to keep the pipe down the the disk full as we process long writes. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ordered-data.c')
-rw-r--r--fs/btrfs/ordered-data.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index dcc1730dd837..2eb6caba57c2 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -397,7 +397,7 @@ void btrfs_start_ordered_extent(struct inode *inode,
/*
* Used to wait on ordered extents across a large range of bytes.
*/
-void btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
+int btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
{
u64 end;
u64 orig_end;
@@ -451,6 +451,7 @@ again:
(unsigned long long)orig_end);
goto again;
}
+ return 0;
}
/*