__mpage_writepage() is used to implement mpage_writepages() which in turn is used for ->writepages() of various filesystems. All writeback logic is now updated to handle cgroup writeback and the block cgroup to issue IOs for is encoded in writeback_control and can be retrieved from the inode; however, __mpage_writepage() currently ignores the blkcg indicated by the inode and issues all bio's without explicit blkcg association. This patch updates __mpage_writepage() so that the issued bio's are associated with inode_to_writeback_blkcg_css(inode). v2: Updated for per-inode wb association. Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> Cc: Jens Axboe <axboe@xxxxxxxxx> Cc: Jan Kara <jack@xxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> --- fs/mpage.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/mpage.c b/fs/mpage.c index 3e79220..a3ccb0b 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -605,6 +605,8 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc, bio_get_nr_vecs(bdev), GFP_NOFS|__GFP_HIGH); if (bio == NULL) goto confused; + + bio_associate_blkcg(bio, inode_to_wb_blkcg_css(inode)); } /* -- 2.4.0 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
