On 7/20/2025 12:00 AM, Markus Elfring wrote:
…
+++ b/drivers/hv/mshv_vtl_main.c
@@ -0,0 +1,1783 @@
…
+static int mshv_vtl_sint_ioctl_set_eventfd(struct mshv_vtl_set_eventfd __user
*arg)
+{
…
+ mutex_lock(&flag_lock);
+ old_eventfd = flag_eventfds[set_eventfd.flag];
+ WRITE_ONCE(flag_eventfds[set_eventfd.flag], eventfd);
+ mutex_unlock(&flag_lock);
…
Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&flag_lock);”?
https://elixir.bootlin.com/linux/v6.16-rc6/source/include/linux/mutex.h#L225
Regards,
Markus
I didn't know about it, TBH. I will use it in this driver in all places.
I have tested the same in my setup.
Thanks.
Regards,
Naman
