diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2023-01-26 16:08:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-01-31 15:01:47 +0100 |
| commit | 8739c6811572b087decd561f96382087402cc343 (patch) | |
| tree | 60330c4df92998fd1994afa131ebab2b24ca67b2 /arch/x86/kernel/cpu/vmware.c | |
| parent | x86/pvclock: Improve atomic update of last_value in pvclock_clocksource_read() (diff) | |
| download | linux-8739c6811572b087decd561f96382087402cc343.tar.xz linux-8739c6811572b087decd561f96382087402cc343.zip | |
sched/clock/x86: Mark sched_clock() noinstr
In order to use sched_clock() from noinstr code, mark it and all it's
implenentations noinstr.
The whole pvclock thing (used by KVM/Xen) is a bit of a pain,
since it calls out to watchdogs, create a
pvclock_clocksource_read_nowd() variant doesn't do that and can be
noinstr.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230126151323.702003578@infradead.org
Diffstat (limited to 'arch/x86/kernel/cpu/vmware.c')
| -rw-r--r-- | arch/x86/kernel/cpu/vmware.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c index 02039ec3597d..11f83d07925e 100644 --- a/arch/x86/kernel/cpu/vmware.c +++ b/arch/x86/kernel/cpu/vmware.c @@ -143,7 +143,7 @@ static __init int parse_no_stealacc(char *arg) } early_param("no-steal-acc", parse_no_stealacc); -static unsigned long long notrace vmware_sched_clock(void) +static noinstr u64 vmware_sched_clock(void) { unsigned long long ns; |