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: NJoe Thornber <ejt@redhat.com> Signed-off-by: NMike Snitzer <snitzer@redhat.com>
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dm_btree_del() is called from an ioctl so don't recurse into FS. Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NMike Snitzer <snitzer@redhat.com>