This patch introduces __GFP_ZERO as an additional gfp_mask element to allow
to request zeroed pages from the page allocator.
o Modifies the page allocator so that it zeroes memory if __GFP_ZERO is set
o Replace all page zeroing after allocating pages by request for
zeroed pages.
o requires arch updates to clear_page in order to function properly.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
@@ -125,22 +125,19 @@
int i;
struct packet_data *pkt;
- pkt = kmalloc(sizeof(struct packet_data), GFP_KERNEL);
+ pkt = kmalloc(sizeof(struct packet_data), GFP_KERNEL|__GFP_ZERO);
if (!pkt)
goto no_pkt;
- memset(pkt, 0, sizeof(struct packet_data));
pkt->w_bio = pkt_bio_alloc(PACKET_MAX_SIZE);
if (!pkt->w_bio)