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dm btree: use GFP_NOFS in dm_btree_del() 

dm_btree_del() is called from an ioctl so don't recurse into FS.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Joe Thornber 2015-11-19 13:36:45 +00:00 committed by Mike Snitzer
parent 3ba3ba1e84
commit 9f9ef0657d
1 changed files with 6 additions and 1 deletions
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7
drivers/md/persistent-data/dm-btree.c
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@ -272,7 +272,12 @@ int dm_btree_del(struct dm_btree_info *info, dm_block_t root)
int r;
struct del_stack *s;
s = kmalloc(sizeof(*s), GFP_NOIO);
/*
* dm_btree_del() is called via an ioctl, as such should be
* considered an FS op. We can't recurse back into the FS, so we
* allocate GFP_NOFS.
*/
s = kmalloc(sizeof(*s), GFP_NOFS);
if (!s)
return -ENOMEM;
s->info = info;