mm/zpool: add name argument to create zpool
Currently the underlay of zpool: zsmalloc/zbud, do not know who creates
them. There is not a method to let zsmalloc/zbud find which caller they
belong to.
Now we want to add statistics collection in zsmalloc. We need to name the
debugfs dir for each pool created. The way suggested by Minchan Kim is to
use a name passed by caller(such as zram) to create the zsmalloc pool.
/sys/kernel/debug/zsmalloc/zram0
This patch adds an argument `name' to zs_create_pool() and other related
functions.
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index f14bd75..56529b3 100644
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -36,7 +36,8 @@
ZPOOL_MM_DEFAULT = ZPOOL_MM_RW
};
-struct zpool *zpool_create_pool(char *type, gfp_t gfp, struct zpool_ops *ops);
+struct zpool *zpool_create_pool(char *type, char *name,
+ gfp_t gfp, struct zpool_ops *ops);
char *zpool_get_type(struct zpool *pool);
@@ -80,7 +81,7 @@
atomic_t refcount;
struct list_head list;
- void *(*create)(gfp_t gfp, struct zpool_ops *ops);
+ void *(*create)(char *name, gfp_t gfp, struct zpool_ops *ops);
void (*destroy)(void *pool);
int (*malloc)(void *pool, size_t size, gfp_t gfp,