The semaphore 'lo_sem' in lloop_device is used as completion, so it
should be written as one. Semaphores are going away in the future.
Signed-off-by: Binoy Jayan <binoy.ja...@linaro.org>
---
drivers/staging/lustre/lustre/llite/lloop.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c
b/drivers/staging/lustre/lustre/llite/lloop.c
index 813a9a3..90b31ba 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -131,7 +131,7 @@ struct lloop_device {
struct bio *lo_bio;
struct bio *lo_biotail;
int lo_state;
- struct semaphore lo_sem;
+ struct completion lo_comp;
struct mutex lo_ctl_mutex;
atomic_t lo_pending;
wait_queue_head_t lo_bh_wait;
@@ -423,9 +423,9 @@ static int loop_thread(void *data)
lo->lo_pvec.ldp_offsets = lo->lo_requests[0].lrd_offsets;
/*
- * up sem, we are running
+ * signal completion, we are running
*/
- up(&lo->lo_sem);
+ complete(&lo->lo_comp);
for (;;) {
wait_event(lo->lo_bh_wait, loop_active(lo));
@@ -466,7 +466,7 @@ static int loop_thread(void *data)
cl_env_put(env, &refcheck);
out:
- up(&lo->lo_sem);
+ complete(&lo->lo_comp);
return ret;
}
@@ -539,7 +539,7 @@ static int loop_set_fd(struct lloop_device *lo, struct file
*unused,
set_blocksize(bdev, lo->lo_blocksize);
kthread_run(loop_thread, lo, "lloop%d", lo->lo_number);
- down(&lo->lo_sem);
+ wait_for_completion(&lo->lo_comp);
return 0;
out:
@@ -568,7 +568,7 @@ static int loop_clr_fd(struct lloop_device *lo, struct
block_device *bdev,
spin_unlock_irq(&lo->lo_lock);
wake_up(&lo->lo_bh_wait);
- down(&lo->lo_sem);
+ wait_for_completion(&lo->lo_comp);
lo->lo_backing_file = NULL;
lo->lo_device = NULL;
lo->lo_offset = 0;
@@ -821,7 +821,7 @@ static int __init lloop_init(void)
goto out_mem4;
mutex_init(&lo->lo_ctl_mutex);
- sema_init(&lo->lo_sem, 0);
+ init_completion(&lo->lo_comp);
init_waitqueue_head(&lo->lo_bh_wait);
lo->lo_number = i;
spin_lock_init(&lo->lo_lock);
--
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a Linux Foundation Collaborative Project
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