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| author | Tejun Heo <tj@kernel.org> | 2015-05-22 17:14:04 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 08:38:04 -0600 |
| commit | 429b3fb027492b2b9f96e00bb1a9255fc56d4934 (patch) | |
| tree | 8ca9081601d7d3a09e428760e004078a7f27a28b | |
| parent | bafc0dba1e20d84578d7098d32caf63441e5743d (diff) | |
| download | linux-429b3fb027492b2b9f96e00bb1a9255fc56d4934.tar.bz2 | |
mpage: make __mpage_writepage() honor cgroup writeback
__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@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | fs/mpage.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/mpage.c b/fs/mpage.c index 3e79220babac..a3ccb0bd465a 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -605,6 +605,8 @@ alloc_new: bio_get_nr_vecs(bdev), GFP_NOFS|__GFP_HIGH); if (bio == NULL) goto confused; + + bio_associate_blkcg(bio, inode_to_wb_blkcg_css(inode)); } /* |