From: Yanfei Xu <yanfei.xu@windriver.com>
To: akpm@linux-foundation.org, mgorman@techsingularity.net
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] mm/page_alloc: correct return value when failing at preparing
Date: Fri, 9 Jul 2021 18:28:54 +0800 [thread overview]
Message-ID: <20210709102855.55058-1-yanfei.xu@windriver.com> (raw)
If the array passed in is already partially populated, we should
return "nr_populated" even failing at preparing arguments stage.
Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d6e94cc8066c..e9fd57ca4c1c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5254,7 +5254,7 @@ unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid,
gfp &= gfp_allowed_mask;
alloc_gfp = gfp;
if (!prepare_alloc_pages(gfp, 0, preferred_nid, nodemask, &ac, &alloc_gfp, &alloc_flags))
- return 0;
+ return nr_populated;
gfp = alloc_gfp;
/* Find an allowed local zone that meets the low watermark. */
--
2.27.0
next reply other threads:[~2021-07-09 10:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-09 10:28 Yanfei Xu [this message]
2021-07-09 10:28 ` [PATCH 2/2] mm/page_alloc: avoid counting event if no successful allocation Yanfei Xu
2021-07-09 12:26 ` Mel Gorman
2021-07-10 11:31 ` Xu, Yanfei
2021-07-09 12:22 ` [PATCH 1/2] mm/page_alloc: correct return value when failing at preparing Mel Gorman
2021-07-10 6:58 ` Xu, Yanfei
2021-07-13 12:14 ` Mel Gorman
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