fs: fuse: account fuse_inode slab memory as reclaimable
Fuse inodes are currently included in the unreclaimable slab counts -
SUnreclaim in /proc/meminfo, slab_unreclaimable in /proc/vmstat and the
per-cgroup memory.stat. But they are reclaimable just like other
filesystems' inodes, and /proc/sys/vm/drop_caches frees them easily.
Mark the slab cache reclaimable.
Link: http://lkml.kernel.org/r/20171102202727.12539-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 94a745a..5c0f0d6 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1273,9 +1273,9 @@
int err;
fuse_inode_cachep = kmem_cache_create("fuse_inode",
- sizeof(struct fuse_inode), 0,
- SLAB_HWCACHE_ALIGN|SLAB_ACCOUNT,
- fuse_inode_init_once);
+ sizeof(struct fuse_inode), 0,
+ SLAB_HWCACHE_ALIGN|SLAB_ACCOUNT|SLAB_RECLAIM_ACCOUNT,
+ fuse_inode_init_once);
err = -ENOMEM;
if (!fuse_inode_cachep)
goto out;