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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>
This commit is contained in:
Johannes Weiner 2017-11-15 17:38:34 -08:00 committed by Linus Torvalds
parent b050e3769c
commit df206988e0
1 changed files with 3 additions and 3 deletions
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6
fs/fuse/inode.c
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@ -1273,9 +1273,9 @@ static int __init fuse_fs_init(void)
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;