mempool: remove mempool_{init,create}_kvmalloc_pool

This was added for bcachefs and is unused now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20251113084022.1255121-10-hch@lst.de
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

Author: Christoph Hellwig

include/linux/mempool.h

@@ -103,19 +103,6 @@ void mempool_kfree(void *element, void *pool_data);
 	mempool_create((_min_nr), mempool_kmalloc, mempool_kfree,	\
 		       (void *)(unsigned long)(_size))
 
-void *mempool_kvmalloc(gfp_t gfp_mask, void *pool_data);
-void mempool_kvfree(void *element, void *pool_data);
-
-static inline int mempool_init_kvmalloc_pool(mempool_t *pool, int min_nr, size_t size)
-{
-	return mempool_init(pool, min_nr, mempool_kvmalloc, mempool_kvfree, (void *) size);
-}
-
-static inline mempool_t *mempool_create_kvmalloc_pool(int min_nr, size_t size)
-{
-	return mempool_create(min_nr, mempool_kvmalloc, mempool_kvfree, (void *) size);
-}
-
 /*
  * A mempool_alloc_t and mempool_free_t for a simple page allocator that
  * allocates pages of the order specified by pool_data

mm/mempool.c

@@ -728,19 +728,6 @@ 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.