diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-06-27 09:31:50 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-06-29 09:09:08 -0600 |
| commit | a18b9b1590ca64f877588700de32c9ad236f405c (patch) | |
| tree | e984aa8eff7b32e7fde1412f638107413c722c71 /block/bio.c | |
| parent | 2badf06cf906c7af4bdd4bc1da62890c8e686341 (diff) | |
block: move bio_associate_blkg_from_page to mm/page_io.c
bio_associate_blkg_from_page is a special purpose helper for swap bios
that doesn't need access to bio internals. Move it to the swap code
instead of having it in bio.c.
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/block/bio.c b/block/bio.c index bc8de2432e36..901d22715dd4 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1659,32 +1659,6 @@ void bio_associate_blkg_from_css(struct bio *bio, } EXPORT_SYMBOL_GPL(bio_associate_blkg_from_css); -#ifdef CONFIG_MEMCG -/** - * bio_associate_blkg_from_page - associate a bio with the page's blkg - * @bio: target bio - * @page: the page to lookup the blkcg from - * - * Associate @bio with the blkg from @page's owning memcg and the respective - * request_queue. If cgroup_e_css returns %NULL, fall back to the queue's - * root_blkg. - */ -void bio_associate_blkg_from_page(struct bio *bio, struct page *page) -{ - struct cgroup_subsys_state *css; - - if (!page->mem_cgroup) - return; - - rcu_read_lock(); - - css = cgroup_e_css(page->mem_cgroup->css.cgroup, &io_cgrp_subsys); - bio_associate_blkg_from_css(bio, css); - - rcu_read_unlock(); -} -#endif /* CONFIG_MEMCG */ - /** * bio_associate_blkg - associate a bio with a blkg * @bio: target bio |