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authorDan Streetman <ddstreet@ieee.org>2015-06-26 01:00:40 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 03:00:37 +0300
commit479305fd7172503772575997eb6f1b0a2bb4a107 (patch)
tree134e5910aa691a12002a95b47c5ea2ee2b148123 /mm/zsmalloc.c
parentcf41f5f496d68f2ced1fc77871c63d1c526fa100 (diff)
downloadlinux-479305fd7172503772575997eb6f1b0a2bb4a107.tar.xz
zpool: remove zpool_evict()
Remove zpool_evict() helper function. As zbud is currently the only zpool implementation that supports eviction, add zpool and zpool_ops references to struct zbud_pool and directly call zpool_ops->evict(zpool, handle) on eviction. Currently zpool provides the zpool_evict helper which locks the zpool list lock and searches through all pools to find the specific one matching the caller, and call the corresponding zpool_ops->evict function. However, this is unnecessary, as the zbud pool can simply keep a reference to the zpool that created it, as well as the zpool_ops, and directly call the zpool_ops->evict function, when it needs to evict a page. This avoids a spinlock and list search in zpool for each eviction. Signed-off-by: Dan Streetman <ddstreet@ieee.org> Cc: Seth Jennings <sjennings@variantweb.net> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.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.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index c76624080f9c..0a7f81aa2249 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -309,7 +309,8 @@ static void record_obj(unsigned long handle, unsigned long obj)
#ifdef CONFIG_ZPOOL
-static void *zs_zpool_create(char *name, gfp_t gfp, struct zpool_ops *zpool_ops)
+static void *zs_zpool_create(char *name, gfp_t gfp, struct zpool_ops *zpool_ops,
+ struct zpool *zpool)
{
return zs_create_pool(name, gfp);
}