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| author | Filipe Manana <fdmanana@suse.com> | 2017-10-31 17:59:54 +0000 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-01-22 16:08:20 +0100 |
| commit | 94f450712ac9cb4e165b5115e5eb0ab10055a64b (patch) | |
| tree | 7dac357fb3b7f60089cdfe50fc70a8a6e58c9b6c /fs/btrfs/file.c | |
| parent | f27451f229966874a8793995b8e6b74326d125df (diff) | |
| download | lwn-94f450712ac9cb4e165b5115e5eb0ab10055a64b.tar.gz lwn-94f450712ac9cb4e165b5115e5eb0ab10055a64b.zip | |
Btrfs: use cached state when dirtying pages during buffered write
During a buffered IO write, we can have an extent state that we got when
we locked the range (if the range starts at an offset lower than eof), so
always pass it to btrfs_dirty_pages() so that setting the delalloc bit
in the range does not need to do a full search in the inode's io tree,
saving time and reducing the amount of time we hold the io tree's lock.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/file.c')
| -rw-r--r-- | fs/btrfs/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 16c8031db645..cba2ac371ce0 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1755,7 +1755,7 @@ again: if (copied > 0) ret = btrfs_dirty_pages(inode, pages, dirty_pages, - pos, copied, NULL); + pos, copied, &cached_state); if (extents_locked) unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend, &cached_state); |