From: Yonghui Yang <mark.y...@spreadtrum.com>
This patch changes the waitting condition of wait_event in the
function 'async_synchronize_cookie_domain'.
This function waits until all asynchronous function calls for the certain
domain have been done.
But, the function 'lowest_in_progress' returns the lowest *pending*
entry's cookie.
So we should make sure that the return value of lowest_in_progress(domain)
must be larger than @cookie.
Verified-by: Wei Qiao <wei.q...@spreadtrum.com>
Signed-off-by: Yonghui Yang <mark.y...@spreadtrum.com>
Signed-off-by: Geng Ren <geng....@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zh...@spreadtrum.com>
---
kernel/async.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/async.c b/kernel/async.c
index 4c3773c..894ae80 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -267,7 +267,7 @@ EXPORT_SYMBOL_GPL(async_unregister_domain);
*/
void async_synchronize_full_domain(struct async_domain *domain)
{
- async_synchronize_cookie_domain(ASYNC_COOKIE_MAX, domain);
+ async_synchronize_cookie_domain(ASYNC_COOKIE_MAX-1, domain);
}
EXPORT_SYMBOL_GPL(async_synchronize_full_domain);
@@ -289,7 +289,7 @@ void async_synchronize_cookie_domain(async_cookie_t cookie,
struct async_domain
starttime = ktime_get();
}
- wait_event(async_done, lowest_in_progress(domain) >= cookie);
+ wait_event(async_done, lowest_in_progress(domain) > cookie);
if (initcall_debug && system_state == SYSTEM_BOOTING) {
endtime = ktime_get();
--
1.7.9.5
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