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[v12,02/13] eventfd: Export eventfd_wake_count to modules

Message ID 20210830141737.181-3-xieyongji@bytedance.com (mailing list archive)
State New, archived
Headers show
Series Introduce VDUSE - vDPA Device in Userspace | expand

Commit Message

Yongji Xie Aug. 30, 2021, 2:17 p.m. UTC 
Export eventfd_wake_count so that some modules can use
the eventfd_signal_count() to check whether the
eventfd_signal() call should be deferred to a safe context.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
---
 fs/eventfd.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/fs/eventfd.c b/fs/eventfd.c
index e265b6dd4f34..1b3130b8d6c1 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -26,6 +26,7 @@ 
 #include <linux/uio.h>
 
 DEFINE_PER_CPU(int, eventfd_wake_count);
+EXPORT_PER_CPU_SYMBOL_GPL(eventfd_wake_count);
 
 static DEFINE_IDA(eventfd_ida);