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| author | Elizabeth Figura <zfigura@codeweavers.com> | 2024-12-13 13:34:52 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-08 13:18:11 +0100 |
| commit | 12b29d3008e6bd5118af716ae2971fe6823b117a (patch) | |
| tree | 2bdeb6fc318d038e9ceb99e1ee261cd243011eb5 /include/uapi | |
| parent | ntsync: Introduce NTSYNC_IOC_EVENT_RESET. (diff) | |
| download | linux-12b29d3008e6bd5118af716ae2971fe6823b117a.tar.gz linux-12b29d3008e6bd5118af716ae2971fe6823b117a.zip | |
ntsync: Introduce NTSYNC_IOC_EVENT_PULSE.
This corresponds to the NT syscall NtPulseEvent().
This wakes up any waiters as if the event had been set, but does not set the
event, instead resetting it if it had been signalled. Thus, for a manual-reset
event, all waiters are woken, whereas for an auto-reset event, at most one
waiter is woken.
Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20241213193511.457338-12-zfigura@codeweavers.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/ntsync.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/ntsync.h b/include/uapi/linux/ntsync.h index d74c4e4f93d8..9eab7666b8b9 100644 --- a/include/uapi/linux/ntsync.h +++ b/include/uapi/linux/ntsync.h @@ -50,5 +50,6 @@ struct ntsync_wait_args { #define NTSYNC_IOC_MUTEX_KILL _IOW ('N', 0x86, __u32) #define NTSYNC_IOC_EVENT_SET _IOR ('N', 0x88, __u32) #define NTSYNC_IOC_EVENT_RESET _IOR ('N', 0x89, __u32) +#define NTSYNC_IOC_EVENT_PULSE _IOR ('N', 0x8a, __u32) #endif |