On Fri 22-05-15 17:14:04, Tejun Heo wrote: > __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. Looks good. You can add: Reviewed-by: Jan Kara <jack@xxxxxxxx> Honza > > 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 > -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>