Use __GFP_ZONE_MASK to replace (__GFP_DMA32 | __GFP_HIGHMEM).
In function alloc_extent_state, it is obvious that __GFP_DMA is not
the expecting zone type.
___GFP_DMA, ___GFP_HIGHMEM and ___GFP_DMA32 have been deleted from GFP
bitmasks, the bottom three bits of GFP mask is reserved for storing
encoded zone number.
__GFP_DMA, __GFP_HIGHMEM and __GFP_DMA32 should not be operated with
each others by OR.
Signed-off-by: Huaisheng Ye <yehs1@xxxxxxxxxx>
Cc: Chris Mason <clm@xxxxxx>
Cc: Josef Bacik <jbacik@xxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
---
fs/btrfs/extent_io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index dfeb74a..6653e9a 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -220,7 +220,7 @@ static struct extent_state *alloc_extent_state(gfp_t mask)
* The given mask might be not appropriate for the slab allocator,
* drop the unsupported bits
*/
- mask &= ~(__GFP_DMA32|__GFP_HIGHMEM);
+ mask &= ~__GFP_ZONE_MASK;
state = kmem_cache_alloc(extent_state_cache, mask);
if (!state)
return state;
--
1.8.3.1
