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Commit 1aceabf3 authored by Michal Hocko's avatar Michal Hocko Committed by David Sterba
Browse files

btrfs: drop gfp mask tweaking in try_release_extent_state 



try_release_extent_state reduces the gfp mask to GFP_NOFS if it is
compatible. This is true for GFP_KERNEL as well. There is no real
reason to do that though. There is no new lock taken down the
the only consumer of the gfp mask which is
try_release_extent_state
  clear_extent_bit
    __clear_extent_bit
      alloc_extent_state

So this seems just unnecessary and confusing.

Signed-off-by: default avatarMichal Hocko <mhocko@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 3ba7ab22

fs/btrfs/extent_io.c

+0 −2
Original line number Diff line number Diff line
@@ -4269,8 +4269,6 @@ static int try_release_extent_state(struct extent_map_tree *map, 
			   EXTENT_IOBITS, 0, NULL))

		ret = 0;

	else {

		if ((mask & GFP_NOFS) == GFP_NOFS)

			mask = GFP_NOFS;

		/*

		 * at this point we can safely clear everything except the

		 * locked bit and the nodatasum bit