[PATCH 3/6] lib/scatterlist: Skip requesting zeroed allocations in sgl_alloc_order

Tvrtko Ursulin
2018-09-26T14:16:42Z

sg_init_table will clear the allocated block so requesting zeroed memory
from the allocator is redundant.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
---
lib/scatterlist.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index 23e53dce897d..3cc01cd82242 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -495,8 +495,7 @@ struct scatterlist *sgl_alloc_order(unsigned long length, unsigned int order,
return NULL;
nalloc++;
}
- sgl = kmalloc_array(nalloc, sizeof(struct scatterlist),
- (gfp & ~GFP_DMA) | __GFP_ZERO);
+ sgl = kmalloc_array(nalloc, sizeof(struct scatterlist), gfp & ~GFP_DMA);
if (!sgl)
return NULL;

--
2.17.1