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Fix congestion_wait() sync/async vs read/write confusion

Browse source 
Commit 1faa16d228 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 <[email protected]>
This commit is contained in:
Jens Axboe 2009-07-09 14:52:32 +02:00 • committed by Jens Axboe
commit 8aa7e847d8
16 changed files with 43 additions and 40 deletions
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8
fs/fuse/dev.c
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@ -286,8 +286,8 @@ __releases(&fc->lock)
}
if (fc->num_background == FUSE_CONGESTION_THRESHOLD &&
fc->connected && fc->bdi_initialized) {
clear_bdi_congested(&fc->bdi, READ);
clear_bdi_congested(&fc->bdi, WRITE);
clear_bdi_congested(&fc->bdi, BLK_RW_SYNC);
clear_bdi_congested(&fc->bdi, BLK_RW_ASYNC);
}
fc->num_background--;
fc->active_background--;
@ -414,8 +414,8 @@ static void fuse_request_send_nowait_locked(struct fuse_conn *fc,
fc->blocked = 1;
if (fc->num_background == FUSE_CONGESTION_THRESHOLD &&
fc->bdi_initialized) {
set_bdi_congested(&fc->bdi, READ);
set_bdi_congested(&fc->bdi, WRITE);
set_bdi_congested(&fc->bdi, BLK_RW_SYNC);
set_bdi_congested(&fc->bdi, BLK_RW_ASYNC);
}
list_add_tail(&req->list, &fc->bg_queue);
flush_bg_queue(fc);