* [PATCH] kernel: relay: use __GFP_ZERO in relay_alloc_buf
@ 2025-06-10 22:56 Elijah Wright
0 siblings, 0 replies; only message in thread
From: Elijah Wright @ 2025-06-10 22:56 UTC (permalink / raw)
To: linux-kernel, akpm; +Cc: Elijah Wright
passing the __GFP_ZERO flag to alloc_page should result in less overhead than using memset()
Signed-off-by: Elijah Wright <git@elijahs.space>
---
kernel/relay.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/relay.c b/kernel/relay.c
index c0c93a04d4ce..3ee5b038d0d9 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -118,7 +118,7 @@ static void *relay_alloc_buf(struct rchan_buf *buf, size_t *size)
return NULL;
for (i = 0; i < n_pages; i++) {
- buf->page_array[i] = alloc_page(GFP_KERNEL);
+ buf->page_array[i] = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (unlikely(!buf->page_array[i]))
goto depopulate;
set_page_private(buf->page_array[i], (unsigned long)buf);
@@ -127,7 +127,6 @@ static void *relay_alloc_buf(struct rchan_buf *buf, size_t *size)
if (!mem)
goto depopulate;
- memset(mem, 0, *size);
buf->page_count = n_pages;
return mem;
--
2.43.0
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2025-06-10 22:59 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-06-10 22:56 [PATCH] kernel: relay: use __GFP_ZERO in relay_alloc_buf Elijah Wright
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).