diff options
| author | Björn Steinbrink <B.Steinbrink@gmx.de> | 2007-06-16 19:15:56 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-06-16 22:16:15 +0200 |
| commit | 54c6ed7562d59ab238df1ec9ff76d81d7d0f0842 (patch) | |
| tree | ba775434be453148ff2d0625359716c2fa5354fa /arch/i386 | |
| parent | i386: fix NMI watchdog not reserving its MSRs (diff) | |
| download | linux-54c6ed7562d59ab238df1ec9ff76d81d7d0f0842.tar.xz linux-54c6ed7562d59ab238df1ec9ff76d81d7d0f0842.zip | |
i386: use the right wrapper to disable the NMI watchdog
When disabled through /proc/sys/kernel/nmi_watchdog, the NMI watchdog uses the
stop() method directly, which does not decrement the activity counter, leading
to a BUG(). Use the wrapper function instead to fix that.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386')
| -rw-r--r-- | arch/i386/kernel/cpu/perfctr-watchdog.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c index 8343244b72c4..98488f997da6 100644 --- a/arch/i386/kernel/cpu/perfctr-watchdog.c +++ b/arch/i386/kernel/cpu/perfctr-watchdog.c @@ -28,7 +28,7 @@ struct wd_ops { void (*unreserve)(void); int (*setup)(unsigned nmi_hz); void (*rearm)(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz); - void (*stop)(void *); + void (*stop)(void); unsigned perfctr; unsigned evntsel; u64 checkbit; @@ -142,7 +142,7 @@ void disable_lapic_nmi_watchdog(void) if (atomic_read(&nmi_active) <= 0) return; - on_each_cpu(wd_ops->stop, NULL, 0, 1); + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); wd_ops->unreserve(); BUG_ON(atomic_read(&nmi_active) != 0); @@ -255,7 +255,7 @@ static int setup_k7_watchdog(unsigned nmi_hz) return 1; } -static void single_msr_stop_watchdog(void *arg) +static void single_msr_stop_watchdog(void) { struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); @@ -442,7 +442,7 @@ static int setup_p4_watchdog(unsigned nmi_hz) return 1; } -static void stop_p4_watchdog(void *arg) +static void stop_p4_watchdog(void) { struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); wrmsr(wd->cccr_msr, 0, 0); @@ -634,7 +634,7 @@ int lapic_watchdog_init(unsigned nmi_hz) void lapic_watchdog_stop(void) { if (wd_ops) - wd_ops->stop(NULL); + wd_ops->stop(); } unsigned lapic_adjust_nmi_hz(unsigned hz) |