Commit 9f0eac07 authored by Li zeming's avatar Li zeming Committed by David Sterba
Browse files

btrfs: allocate btrfs_io_context without GFP_NOFAIL 



The __GFP_NOFAIL flag could loop indefinitely when allocation memory in
alloc_btrfs_io_context. The callers starting from __btrfs_map_block
already handle errors so it's safe to drop the flag.

Signed-off-by: default avatarLi zeming <zeming@nfschina.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent cb3e217b

fs/btrfs/volumes.c

+4 −1
Original line number Diff line number Diff line
@@ -5899,7 +5899,10 @@ static struct btrfs_io_context *alloc_btrfs_io_context(struct btrfs_fs_info *fs_ 
		 * and the stripes.

		 */

		sizeof(u64) * (total_stripes),

		GFP_NOFS|__GFP_NOFAIL);

		GFP_NOFS);



	if (!bioc)

		return NULL;



	refcount_set(&bioc->refs, 1);