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authorKent Overstreet <kent.overstreet@linux.dev>2024-02-01 06:28:41 -0500
committerKent Overstreet <kent.overstreet@linux.dev>2024-03-13 18:38:13 -0400
commit0225bdfafd818f895fa4a4512f124a1614e011e2 (patch)
treebdc0b79b1d1731cd67e41f430b89833d2dd44bad /mm/mempool.c
parent737cd174d1666620f2c41a4552623125de6bd80d (diff)
mempool: kvmalloc pool
Add mempool_init_kvmalloc_pool() and mempool_create_kvmalloc_pool(), which wrap kvmalloc() instead of kmalloc() - kmalloc() with a vmalloc() fallback. This is part of a bcachefs cleanup - dropping an internal kvpmalloc() helper (which predates kvmalloc()) along with mempool helpers; this replaces the bcachefs-private kvpmalloc_pool. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Cc: linux-mm@kvack.org
Diffstat (limited to 'mm/mempool.c')
-rw-r--r--mm/mempool.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/mempool.c b/mm/mempool.c
index dbbf0e9fb424..076c736f5f1f 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -590,6 +590,19 @@ void mempool_kfree(void *element, void *pool_data)
}
EXPORT_SYMBOL(mempool_kfree);
+void *mempool_kvmalloc(gfp_t gfp_mask, void *pool_data)
+{
+ size_t size = (size_t)pool_data;
+ return kvmalloc(size, gfp_mask);
+}
+EXPORT_SYMBOL(mempool_kvmalloc);
+
+void mempool_kvfree(void *element, void *pool_data)
+{
+ kvfree(element);
+}
+EXPORT_SYMBOL(mempool_kvfree);
+
/*
* A simple mempool-backed page allocator that allocates pages
* of the order specified by pool_data.