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| author | Namhyung Kim <namhyung@gmail.com> | 2011-06-20 13:27:44 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-06-20 13:27:44 +0200 |
| commit | 80ceb057135ad77f513277f3bcd04b885501877a (patch) | |
| tree | 78e4c78028097ddcf8229133701d6659bb44fa23 /block/bsg.c | |
| parent | 2c53b436a30867eb6b47dd7bab23ba638d1fb0d2 (diff) | |
| download | lwn-80ceb057135ad77f513277f3bcd04b885501877a.tar.gz lwn-80ceb057135ad77f513277f3bcd04b885501877a.zip | |
bsg: fix bsg_poll() to return POLLOUT properly
POLLOUT should be returned only if bd->queued_cmds < bd->max_queue
so that bsg_alloc_command() can proceed.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/bsg.c')
| -rw-r--r-- | block/bsg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/bsg.c b/block/bsg.c index 0c8b64a16484..c4f49e255751 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -878,7 +878,7 @@ static unsigned int bsg_poll(struct file *file, poll_table *wait) spin_lock_irq(&bd->lock); if (!list_empty(&bd->done_list)) mask |= POLLIN | POLLRDNORM; - if (bd->queued_cmds >= bd->max_queue) + if (bd->queued_cmds < bd->max_queue) mask |= POLLOUT; spin_unlock_irq(&bd->lock); |