From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org, zhangpeng.00@bytedance.com,
willy@infradead.org, surenb@google.com, Liam.Howlett@oracle.com,
jason.sim@samsung.com, akpm@linux-foundation.org
Subject: [failures] maple_tree-use-mas_node_count_gfp-on-mas_expected_entries.patch removed from -mm tree
Date: Mon, 25 Sep 2023 08:26:08 -0700 [thread overview]
Message-ID: <20230925152608.E29DCC433C7@smtp.kernel.org> (raw)
The quilt patch titled
Subject: maple_tree: use mas_node_count_gfp() in mas_expected_entries()
has been removed from the -mm tree. Its filename was
maple_tree-use-mas_node_count_gfp-on-mas_expected_entries.patch
This patch was dropped because it had testing failures
------------------------------------------------------
From: Jaeseon Sim <jason.sim@samsung.com>
Subject: maple_tree: use mas_node_count_gfp() in mas_expected_entries()
Date: Fri, 15 Sep 2023 18:32:43 +0900
Use mas_node_count_gfp with GFP_KERNEL instead of
GFP_NOWAIT | __GFP_NOWARN on mas_expected_entries
in order to allow memory reclaim.
Currently, fork errors occur on low free memory as follows:
Zygote : Failed to fork child process: Out of memory (12)
-ENOMEM was returned as following path:
mas_node_count
mas_expected_entries
dup_mmap
dup_mm
copy_mm
copy_process
Link: https://lkml.kernel.org/r/20230915093243epcms1p46fa00bbac1ab7b7dca94acb66c44c456@epcms1p4
Signed-off-by: Jaeseon Sim <jason.sim@samsung.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/maple_tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/maple_tree.c~maple_tree-use-mas_node_count_gfp-on-mas_expected_entries
+++ a/lib/maple_tree.c
@@ -5574,7 +5574,7 @@ int mas_expected_entries(struct ma_state
/* Internal nodes */
nr_nodes += DIV_ROUND_UP(nr_nodes, nonleaf_cap);
/* Add working room for split (2 nodes) + new parents */
- mas_node_count(mas, nr_nodes + 3);
+ mas_node_count_gfp(mas, nr_nodes + 3, GFP_KERNEL);
/* Detect if allocations run out */
mas->mas_flags |= MA_STATE_PREALLOC;
_
Patches currently in -mm which might be from jason.sim@samsung.com are
reply other threads:[~2023-09-25 15:26 UTC|newest]
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