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authorGanesh Mahendran <opensource.ganesh@gmail.com>2015-02-13 02:00:51 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 05:54:12 +0300
commit3eba0c6a56c04f2b017b43641a821f1ebfb7fb4c (patch)
treeae8732c7012ccee1573769e2a686eb98df173bca /mm/zsmalloc.c
parentee98016010ae036a5b27300d83bd99ef3fd5776e (diff)
downloadlinux-3eba0c6a56c04f2b017b43641a821f1ebfb7fb4c.tar.xz
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>
Diffstat (limited to 'mm/zsmalloc.c')
-rw-r--r--mm/zsmalloc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index b72403927aa4..2359e61b02bf 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -246,9 +246,9 @@ struct mapping_area {
#ifdef CONFIG_ZPOOL
-static void *zs_zpool_create(gfp_t gfp, struct zpool_ops *zpool_ops)
+static void *zs_zpool_create(char *name, gfp_t gfp, struct zpool_ops *zpool_ops)
{
- return zs_create_pool(gfp);
+ return zs_create_pool(name, gfp);
}
static void zs_zpool_destroy(void *pool)
@@ -1148,7 +1148,7 @@ EXPORT_SYMBOL_GPL(zs_free);
* On success, a pointer to the newly created pool is returned,
* otherwise NULL.
*/
-struct zs_pool *zs_create_pool(gfp_t flags)
+struct zs_pool *zs_create_pool(char *name, gfp_t flags)
{
int i;
struct zs_pool *pool;