The patch titled
Subject: mm/page_alloc: correct return value when failing at preparing
has been added to the -mm tree. Its filename is
mm-page_alloc-correct-return-value-when-failing-at-preparing.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-correct-return-value-when-failing-at-preparing.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-correct-return-value-when-failing-at-preparing.patch
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------------------------------------------------------
From: Yanfei Xu <yanfei.xu@xxxxxxxxxxxxx>
Subject: mm/page_alloc: correct return value when failing at preparing
If the array passed in is already partially populated, we should return
"nr_populated" even failing at preparing arguments stage.
Link: https://lkml.kernel.org/r/20210713152100.10381-3-mgorman@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Yanfei Xu <yanfei.xu@xxxxxxxxxxxxx>
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210709102855.55058-1-yanfei.xu@xxxxxxxxxxxxx
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/page_alloc.c~mm-page_alloc-correct-return-value-when-failing-at-preparing
+++ a/mm/page_alloc.c
@@ -5255,7 +5255,7 @@ unsigned long __alloc_pages_bulk(gfp_t g
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. */
_
Patches currently in -mm which might be from yanfei.xu@xxxxxxxxxxxxx are
mm-page_alloc-correct-return-value-when-failing-at-preparing.patch
