Messages in this thread Patch in this message | | | Subject | [PATCH v2] maple_tree: use mas_node_count_gfp on mas_expected_entries | From | Jaeseon Sim <> | Date | Fri, 15 Sep 2023 18:32:43 +0900 |
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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
Signed-off-by: Jaeseon Sim <jason.sim@samsung.com> --- lib/maple_tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/maple_tree.c b/lib/maple_tree.c index ee1ff0c59fd7..b0229271c24e 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -5574,7 +5574,7 @@ int mas_expected_entries(struct ma_state *mas, unsigned long nr_entries) /* 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; -- 2.17.1
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