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authorJens Axboe <jens.axboe@oracle.com>2009-07-09 14:52:32 +0200
committerJens Axboe <axboe@carl.(none)>2009-07-10 20:31:53 +0200
commit8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0 (patch)
tree76c8b4f1362a928d426f2201790ab5d128f57724 /include
parentc2cc49a2f8a479dde96a599646d30b6cc9dbed78 (diff)
Fix congestion_wait() sync/async vs read/write confusion
Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke the bdi congestion wait queue logic, causing us to wait on congestion for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/backing-dev.h6
-rw-r--r--include/linux/blkdev.h8
2 files changed, 7 insertions, 7 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 0ec2c594868e..3a52a63c1351 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -229,9 +229,9 @@ static inline int bdi_rw_congested(struct backing_dev_info *bdi)
(1 << BDI_async_congested));
}
-void clear_bdi_congested(struct backing_dev_info *bdi, int rw);
-void set_bdi_congested(struct backing_dev_info *bdi, int rw);
-long congestion_wait(int rw, long timeout);
+void clear_bdi_congested(struct backing_dev_info *bdi, int sync);
+void set_bdi_congested(struct backing_dev_info *bdi, int sync);
+long congestion_wait(int sync, long timeout);
static inline bool bdi_cap_writeback_dirty(struct backing_dev_info *bdi)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 49ae07951d55..bb3d39978701 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -779,18 +779,18 @@ extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
* congested queues, and wake up anyone who was waiting for requests to be
* put back.
*/
-static inline void blk_clear_queue_congested(struct request_queue *q, int rw)
+static inline void blk_clear_queue_congested(struct request_queue *q, int sync)
{
- clear_bdi_congested(&q->backing_dev_info, rw);
+ clear_bdi_congested(&q->backing_dev_info, sync);
}
/*
* A queue has just entered congestion. Flag that in the queue's VM-visible
* state flags and increment the global gounter of congested queues.
*/
-static inline void blk_set_queue_congested(struct request_queue *q, int rw)
+static inline void blk_set_queue_congested(struct request_queue *q, int sync)
{
- set_bdi_congested(&q->backing_dev_info, rw);
+ set_bdi_congested(&q->backing_dev_info, sync);
}
extern void blk_start_queue(struct request_queue *q);