From 0ba5a25ad1c951fa25baa8c30a526b647ab50d47 Mon Sep 17 00:00:00 2001 From: Elijah Wright Date: Tue, 10 Jun 2025 15:56:28 -0700 Subject: [PATCH] kernel: relay: use __GFP_ZERO in relay_alloc_buf Passing the __GFP_ZERO flag to alloc_page should result in less overhead th= an using memset() Link: https://lkml.kernel.org/r/20250610225639.314970-3-git@elijahs.space Signed-off-by: Elijah Wright Signed-off-by: Andrew Morton --- kernel/relay.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/relay.c b/kernel/relay.c index c0c93a04d4ce9..3ee5b038d0d90 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; -- 2.47.2