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authorYing Han <yinghan@google.com>2011-05-24 17:12:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 08:39:26 -0700
commit1495f230fa7750479c79e3656286b9183d662077 (patch)
treee5e233bb9fe1916ccc7281e7dcc71b1572fb22c5 /fs/mbcache.c
parenta09ed5e00084448453c8bada4dcd31e5fbfc2f21 (diff)
downloadlinux-stericsson-1495f230fa7750479c79e3656286b9183d662077.tar.gz
vmscan: change shrinker API by passing shrink_control struct
Change each shrinker's API by consolidating the existing parameters into shrink_control struct. This will simplify any further features added w/o touching each file of shrinker. [akpm@linux-foundation.org: fix build] [akpm@linux-foundation.org: fix warning] [kosaki.motohiro@jp.fujitsu.com: fix up new shrinker API] [akpm@linux-foundation.org: fix xfs warning] [akpm@linux-foundation.org: update gfs2] Signed-off-by: Ying Han <yinghan@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Minchan Kim <minchan.kim@gmail.com> Acked-by: Pavel Emelyanov <xemul@openvz.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Hugh Dickins <hughd@google.com> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/mbcache.c')
-rw-r--r--fs/mbcache.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/mbcache.c b/fs/mbcache.c
index 2f174be06555..8c32ef3ba88e 100644
--- a/fs/mbcache.c
+++ b/fs/mbcache.c
@@ -90,7 +90,8 @@ static DEFINE_SPINLOCK(mb_cache_spinlock);
* What the mbcache registers as to get shrunk dynamically.
*/
-static int mb_cache_shrink_fn(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask);
+static int mb_cache_shrink_fn(struct shrinker *shrink,
+ struct shrink_control *sc);
static struct shrinker mb_cache_shrinker = {
.shrink = mb_cache_shrink_fn,
@@ -156,18 +157,19 @@ forget:
* gets low.
*
* @shrink: (ignored)
- * @nr_to_scan: Number of objects to scan
- * @gfp_mask: (ignored)
+ * @sc: shrink_control passed from reclaim
*
* Returns the number of objects which are present in the cache.
*/
static int
-mb_cache_shrink_fn(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask)
+mb_cache_shrink_fn(struct shrinker *shrink, struct shrink_control *sc)
{
LIST_HEAD(free_list);
struct mb_cache *cache;
struct mb_cache_entry *entry, *tmp;
int count = 0;
+ int nr_to_scan = sc->nr_to_scan;
+ gfp_t gfp_mask = sc->gfp_mask;
mb_debug("trying to free %d entries", nr_to_scan);
spin_lock(&mb_cache_spinlock);