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authorDennis Zhou <dennis@kernel.org>2018-12-05 12:10:33 -0500
committerJens Axboe <axboe@kernel.dk>2018-12-07 22:26:37 -0700
commit6a7f6d86a561473032287c8e4583eac5853c6efa (patch)
tree32c54f20a3396c9da84e40625d2423821caa3556 /include/linux/bio.h
parente439bedf6b24264f620cc05627e23a90054bde41 (diff)
blkcg: associate a blkg for pages being evicted by swap
A prior patch in this series added blkg association to bios issued by cgroups. There are two other paths that we want to attribute work back to the appropriate cgroup: swap and writeback. Here we modify the way swap tags bios to include the blkg. Writeback will be tackle in the next patch. Signed-off-by: Dennis Zhou <dennis@kernel.org> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/bio.h')
-rw-r--r--include/linux/bio.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 6ee2ea8b378a..f13572c254a7 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -505,10 +505,10 @@ do { \
disk_devt((bio)->bi_disk)
#if defined(CONFIG_MEMCG) && defined(CONFIG_BLK_CGROUP)
-int bio_associate_blkcg_from_page(struct bio *bio, struct page *page);
+void bio_associate_blkg_from_page(struct bio *bio, struct page *page);
#else
-static inline int bio_associate_blkcg_from_page(struct bio *bio,
- struct page *page) { return 0; }
+static inline void bio_associate_blkg_from_page(struct bio *bio,
+ struct page *page) { }
#endif
#ifdef CONFIG_BLK_CGROUP