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authorDennis Zhou (Facebook) <dennisszhou@gmail.com>2018-09-11 14:41:31 -0400
committerJens Axboe <axboe@kernel.dk>2018-09-21 20:29:09 -0600
commit74b7c02a9bc124ee3df0d77880ee26db0a325516 (patch)
tree9600af0dbec0293940a7e0fdfea7e2b1f7dba7e3 /mm/page_io.c
parent5bf9a1f3b4efef7e463105dde8bba4d2397909c2 (diff)
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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 <dennisszhou@gmail.com> 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 'mm/page_io.c')
-rw-r--r--mm/page_io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_io.c b/mm/page_io.c
index aafd19ec1db4..573d3663d846 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -339,7 +339,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc,
goto out;
}
bio->bi_opf = REQ_OP_WRITE | REQ_SWAP | wbc_to_write_flags(wbc);
- bio_associate_blkcg_from_page(bio, page);
+ bio_associate_blkg_from_page(bio, page);
count_swpout_vm_event(page);
set_page_writeback(page);
unlock_page(page);