On Tue, Apr 17, 2018 at 09:53:47PM +0300, Kirill Tkhai wrote: > The patch adds list_lru::shrinker_id field, and populates > it by registered shrinker id. > > This will be used to set correct bit in memcg shrinkers > map by lru code in next patches, after there appeared > the first related to memcg element in list_lru. > > Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com> > --- > fs/super.c | 4 +++- > include/linux/list_lru.h | 1 + > include/linux/shrinker.h | 8 +++++++- > mm/list_lru.c | 6 ++++++ > mm/vmscan.c | 15 ++++++++++----- > mm/workingset.c | 3 ++- > 6 files changed, 29 insertions(+), 8 deletions(-) > > diff --git a/fs/super.c b/fs/super.c > index 5fa9a8d8d865..9bc5698c8c3c 100644 > --- a/fs/super.c > +++ b/fs/super.c > @@ -518,7 +518,9 @@ struct super_block *sget_userns(struct file_system_type > *type, > hlist_add_head(&s->s_instances, &type->fs_supers); > spin_unlock(&sb_lock); > get_filesystem(type); > - err = register_shrinker(&s->s_shrink); > + err = register_shrinker_args(&s->s_shrink, 2, > + &s->s_dentry_lru.shrinker_id, > + &s->s_inode_lru.shrinker_id);
This looks ugly. May be, we could allocate an id in prealloc_shrinker then simply pass it to list_lru_init in arguments?
