fs: convert fs shrinkers to new scan/count API

[linux-2.6-microblaze.git] / fs / ubifs / shrinker.c

diff --git a/fs/ubifs/shrinker.c b/fs/ubifs/shrinker.c
index 9e1d056..f35135e 100644 (file)
--- a/fs/ubifs/shrinker.c
+++ b/fs/ubifs/shrinker.c
@@ -277,18 +277,25 @@ static int kick_a_thread(void)
        return 0;
 }
 
-int ubifs_shrinker(struct shrinker *shrink, struct shrink_control *sc)
+unsigned long ubifs_shrink_count(struct shrinker *shrink,
+                                struct shrink_control *sc)
 {
-       int nr = sc->nr_to_scan;
-       int freed, contention = 0;
        long clean_zn_cnt = atomic_long_read(&ubifs_clean_zn_cnt);
 
-       if (nr == 0)
-               /*
-                * Due to the way UBIFS updates the clean znode counter it may
-                * temporarily be negative.
-                */
-               return clean_zn_cnt >= 0 ? clean_zn_cnt : 1;
+       /*
+        * Due to the way UBIFS updates the clean znode counter it may
+        * temporarily be negative.
+        */
+       return clean_zn_cnt >= 0 ? clean_zn_cnt : 1;
+}
+
+unsigned long ubifs_shrink_scan(struct shrinker *shrink,
+                               struct shrink_control *sc)
+{
+       unsigned long nr = sc->nr_to_scan;
+       int contention = 0;
+       unsigned long freed;
+       long clean_zn_cnt = atomic_long_read(&ubifs_clean_zn_cnt);
 
        if (!clean_zn_cnt) {
                /*
@@ -316,10 +323,10 @@ int ubifs_shrinker(struct shrinker *shrink, struct shrink_control *sc)
 
        if (!freed && contention) {
                dbg_tnc("freed nothing, but contention");
-               return -1;
+               return SHRINK_STOP;
        }
 
 out:
-       dbg_tnc("%d znodes were freed, requested %d", freed, nr);
+       dbg_tnc("%lu znodes were freed, requested %lu", freed, nr);
        return freed;
 }