diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/dir.c | 14 | ||||
| -rw-r--r-- | fs/nfs/internal.h | 6 | ||||
| -rw-r--r-- | fs/nfs/super.c | 3 |
3 files changed, 17 insertions, 6 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 813ef2571545..de434f309af0 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -2006,17 +2006,18 @@ static void nfs_access_free_list(struct list_head *head) } } -int nfs_access_cache_shrinker(struct shrinker *shrink, - struct shrink_control *sc) +unsigned long +nfs_access_cache_scan(struct shrinker *shrink, struct shrink_control *sc) { LIST_HEAD(head); struct nfs_inode *nfsi, *next; struct nfs_access_entry *cache; int nr_to_scan = sc->nr_to_scan; gfp_t gfp_mask = sc->gfp_mask; + long freed = 0; if ((gfp_mask & GFP_KERNEL) != GFP_KERNEL) - return (nr_to_scan == 0) ? 0 : -1; + return SHRINK_STOP; spin_lock(&nfs_access_lru_lock); list_for_each_entry_safe(nfsi, next, &nfs_access_lru_list, access_cache_inode_lru) { @@ -2032,6 +2033,7 @@ int nfs_access_cache_shrinker(struct shrinker *shrink, struct nfs_access_entry, lru); list_move(&cache->lru, &head); rb_erase(&cache->rb_node, &nfsi->access_cache); + freed++; if (!list_empty(&nfsi->access_cache_entry_lru)) list_move_tail(&nfsi->access_cache_inode_lru, &nfs_access_lru_list); @@ -2046,6 +2048,12 @@ remove_lru_entry: } spin_unlock(&nfs_access_lru_lock); nfs_access_free_list(&head); + return freed; +} + +unsigned long +nfs_access_cache_count(struct shrinker *shrink, struct shrink_control *sc) +{ return vfs_pressure_ratio(atomic_long_read(&nfs_access_nr_entries)); } diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index d388302c005f..38da8c2b81ac 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -273,8 +273,10 @@ extern struct nfs_client *nfs_init_client(struct nfs_client *clp, const char *ip_addr); /* dir.c */ -extern int nfs_access_cache_shrinker(struct shrinker *shrink, - struct shrink_control *sc); +extern unsigned long nfs_access_cache_count(struct shrinker *shrink, + struct shrink_control *sc); +extern unsigned long nfs_access_cache_scan(struct shrinker *shrink, + struct shrink_control *sc); struct dentry *nfs_lookup(struct inode *, struct dentry *, unsigned int); int nfs_create(struct inode *, struct dentry *, umode_t, bool); int nfs_mkdir(struct inode *, struct dentry *, umode_t); diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 5793f24613c8..a03b9c6f9489 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -360,7 +360,8 @@ static void unregister_nfs4_fs(void) #endif static struct shrinker acl_shrinker = { - .shrink = nfs_access_cache_shrinker, + .count_objects = nfs_access_cache_count, + .scan_objects = nfs_access_cache_scan, .seeks = DEFAULT_SEEKS, }; |