From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, linux-mm@kvack.org,
mgorman@techsingularity.net, mm-commits@vger.kernel.org,
torvalds@linux-foundation.org, yanfei.xu@windriver.com
Subject: [patch 06/13] mm/page_alloc: correct return value when failing at preparing
Date: Wed, 14 Jul 2021 21:26:49 -0700 [thread overview]
Message-ID: <20210715042649.CGq7mTI8y%akpm@linux-foundation.org> (raw)
In-Reply-To: <20210714212609.fad116e584ba1194981a6294@linux-foundation.org>
From: Yanfei Xu <yanfei.xu@windriver.com>
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@techsingularity.net
Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Link: https://lore.kernel.org/r/20210709102855.55058-1-yanfei.xu@windriver.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
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. */
_
next prev parent reply other threads:[~2021-07-15 4:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 4:26 incoming Andrew Morton
2021-07-15 4:26 ` [patch 01/13] mm: move helper to check slub_debug_enabled Andrew Morton
2021-07-15 4:26 ` [patch 02/13] kasan: add memzero init for unaligned size at DEBUG Andrew Morton
2021-07-15 4:26 ` [patch 03/13] kasan: fix build by including kernel.h Andrew Morton
2021-07-15 4:26 ` [patch 04/13] Revert "mm/page_alloc: make should_fail_alloc_page() static" Andrew Morton
2021-07-15 4:26 ` [patch 05/13] mm/page_alloc: avoid page allocator recursion with pagesets.lock held Andrew Morton
2021-07-15 4:26 ` Andrew Morton [this message]
2021-07-15 4:26 ` [patch 07/13] mm/page_alloc: further fix __alloc_pages_bulk() return value Andrew Morton
2021-07-15 4:26 ` [patch 08/13] mm: fix the try_to_unmap prototype for !CONFIG_MMU Andrew Morton
2021-07-15 4:26 ` [patch 09/13] lib/test_hmm: remove set but unused page variable Andrew Morton
2021-07-15 4:27 ` [patch 10/13] hfs: add missing clean-up in hfs_fill_super Andrew Morton
2021-07-15 4:27 ` [patch 11/13] hfs: fix high memory mapping in hfs_bnode_read Andrew Morton
2021-07-15 4:27 ` [patch 12/13] hfs: add lock nesting notation to hfs_find_init Andrew Morton
2021-07-15 4:27 ` [patch 13/13] mm/hugetlb: fix refs calculation from unaligned @vaddr Andrew Morton
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