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| author |   Juergen Gross <jgross@suse.com> | 2021-03-11 15:23:09 +0100 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2021-03-11 16:17:52 +0100 |
| commit | a0e2bf7cb7006b5a58ee81f4da4fe575875f2781 (patch) | |
| tree | 74da4d815e17d058066f7d615e0b6c462b155f71 /arch/x86/kernel/tsc.c | |
| parent | static_call: Add function to query current function (diff) | |
| download | linux-dev-a0e2bf7cb7006b5a58ee81f4da4fe575875f2781.tar.xz linux-dev-a0e2bf7cb7006b5a58ee81f4da4fe575875f2781.zip | |
x86/paravirt: Switch time pvops functions to use static_call()
The time pvops functions are the only ones left which might be
used in 32-bit mode and which return a 64-bit value.
Switch them to use the static_call() mechanism instead of pvops, as
this allows quite some simplification of the pvops implementation.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210311142319.4723-5-jgross@suse.com
Diffstat (limited to 'arch/x86/kernel/tsc.c')
| -rw-r--r-- | arch/x86/kernel/tsc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index f70dffc2771f..9f592923f956 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -14,6 +14,7 @@ #include <linux/percpu.h> #include <linux/timex.h> #include <linux/static_key.h> +#include <linux/static_call.h> #include <asm/hpet.h> #include <asm/timer.h> @@ -254,7 +255,7 @@ unsigned long long sched_clock(void) bool using_native_sched_clock(void) { - return pv_ops.time.sched_clock == native_sched_clock; + return static_call_query(pv_sched_clock) == native_sched_clock; } #else unsigned long long |