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btrfs: allocate btrfs_io_context without GFP_NOFAIL

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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: Li zeming <zeming@nfschina.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Li zeming 2022-10-26 09:36:11 +08:00 committed by David Sterba
parent cb3e217bdb
commit 9f0eac070d
1 changed files with 4 additions and 1 deletions
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5
fs/btrfs/volumes.c
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@ -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);