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authorThomas Gleixner <tglx@linutronix.de>2024-11-05 09:14:48 +0100
committerThomas Gleixner <tglx@linutronix.de>2024-11-07 02:14:45 +0100
commit647da5f709f112319c0d51e06f330d8afecb1940 (patch)
treed4e72435fc95dfd2879d0197782f64c5299ca1b8 /include/uapi
parentsignal: Cleanup unused posix-timer leftovers (diff)
downloadlinux-647da5f709f112319c0d51e06f330d8afecb1940.tar.gz
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posix-timers: Move sequence logic into struct k_itimer
The posix timer signal handling uses siginfo::si_sys_private for handling the sequence counter check. That indirection is not longer required and the sequence count value at signal queueing time can be stored in struct k_itimer itself. This removes the requirement of treating siginfo::si_sys_private special as it's now always zero as the kernel does not touch it anymore. Suggested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Link: https://lore.kernel.org/all/20241105064213.852619866@linutronix.de
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/asm-generic/siginfo.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index b7bc545ec3b2..5a1ca43b5fc6 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -46,7 +46,7 @@ union __sifields {
__kernel_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
sigval_t _sigval; /* same as below */
- int _sys_private; /* not to be passed to user */
+ int _sys_private; /* Not used by the kernel. Historic leftover. Always 0. */
} _timer;
/* POSIX.1b signals */