diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-10-27 11:44:26 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-11-04 10:30:09 +0300 |
| commit | d923739e2e356424cc566143a3323c62cd6ed067 (patch) | |
| tree | bf852569d2a610de7c98b934374f47665a9a603b /include/linux/sched.h | |
| parent | 067b3b41b4dd5bf51d6874206f5c1f72e0684eeb (diff) | |
| download | linux-d923739e2e356424cc566143a3323c62cd6ed067.tar.xz | |
rseq: Simplify the event notification
Since commit 0190e4198e47 ("rseq: Deprecate RSEQ_CS_FLAG_NO_RESTART_ON_*
flags") the bits in task::rseq_event_mask are meaningless and just extra
work in terms of setting them individually.
Aside of that the only relevant point where an event has to be raised is
context switch. Neither the CPU nor MM CID can change without going through
a context switch.
Collapse them all into a single boolean which simplifies the code a lot and
remove the pointless invocations which have been sprinkled all over the
place for no value.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251027084306.336978188@linutronix.de
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index b469878de25c..6627c527c2c7 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1407,14 +1407,14 @@ struct task_struct { #endif /* CONFIG_NUMA_BALANCING */ #ifdef CONFIG_RSEQ - struct rseq __user *rseq; - u32 rseq_len; - u32 rseq_sig; + struct rseq __user *rseq; + u32 rseq_len; + u32 rseq_sig; /* - * RmW on rseq_event_mask must be performed atomically + * RmW on rseq_event_pending must be performed atomically * with respect to preemption. */ - unsigned long rseq_event_mask; + bool rseq_event_pending; # ifdef CONFIG_DEBUG_RSEQ /* * This is a place holder to save a copy of the rseq fields for |