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authorTejun Heo <tj@kernel.org>2015-05-22 17:13:54 -0400
committerJens Axboe <axboe@fb.com>2015-06-02 08:33:36 -0600
commit9ecf4866c018aeb304a7b49216c4d183665becb7 (patch)
tree6ad8f200eea95b1b1fca2a121b91c97ac65ad81f /fs
parentbc05873dccd27d75d6acdf812c3edfb181f1ba17 (diff)
downloadblackbird-op-linux-9ecf4866c018aeb304a7b49216c4d183665becb7.tar.gz
blackbird-op-linux-9ecf4866c018aeb304a7b49216c4d183665becb7.zip
writeback: make bdi_start_background_writeback() take bdi_writeback instead of backing_dev_info
bdi_start_background_writeback() currently takes @bdi and kicks the root wb (bdi_writeback). In preparation for cgroup writeback support, make it take wb instead. This patch doesn't make any functional difference. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/fs-writeback.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 45baf6c89b99..92aaf641ee22 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -228,23 +228,23 @@ void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
}
/**
- * bdi_start_background_writeback - start background writeback
- * @bdi: the backing device to write from
+ * wb_start_background_writeback - start background writeback
+ * @wb: bdi_writback to write from
*
* Description:
* This makes sure WB_SYNC_NONE background writeback happens. When
- * this function returns, it is only guaranteed that for given BDI
+ * this function returns, it is only guaranteed that for given wb
* some IO is happening if we are over background dirty threshold.
* Caller need not hold sb s_umount semaphore.
*/
-void bdi_start_background_writeback(struct backing_dev_info *bdi)
+void wb_start_background_writeback(struct bdi_writeback *wb)
{
/*
* We just wake up the flusher thread. It will perform background
* writeback as soon as there is no other work to do.
*/
- trace_writeback_wake_background(bdi);
- wb_wakeup(&bdi->wb);
+ trace_writeback_wake_background(wb->bdi);
+ wb_wakeup(wb);
}
/*
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