Commit 4ca73656 authored by Nikolay Borisov's avatar Nikolay Borisov Committed by David Sterba
Browse files

btrfs: Implement set_extent_bits_nowait 



It will be used in a future patch that will require modifying an
extent_io_tree struct under a spinlock.

Signed-off-by: default avatarNikolay Borisov <nborisov@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 930b0907

fs/btrfs/extent_io.c

+7 −0
Original line number Diff line number Diff line
@@ -1368,6 +1368,13 @@ int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end, 
				changeset);

}



int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,

			   unsigned bits)

{

	return __set_extent_bit(tree, start, end, bits, 0, NULL, NULL,

				GFP_NOWAIT, NULL);

}



int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,

		     unsigned bits, int wake, int delete,

		     struct extent_state **cached)

fs/btrfs/extent_io.h

+2 −0
Original line number Diff line number Diff line
@@ -328,6 +328,8 @@ int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end, 
int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,

		   unsigned bits, u64 *failed_start,

		   struct extent_state **cached_state, gfp_t mask);

int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,

			   unsigned bits);



static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,

		u64 end, unsigned bits)