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authorThomas Gleixner <tglx@linutronix.de>2020-01-14 19:52:38 +0100
committerThomas Gleixner <tglx@linutronix.de>2020-01-17 15:53:50 +0100
commit9a6b55ac4a44060bcb782baf002859b2a2c63267 (patch)
tree511a3f83b91584cb4a1da35f0cd1837ac647e894
parentde95a991bb72e009f47e0c4bbc90fc5f594588d5 (diff)
downloadblackbird-op-linux-9a6b55ac4a44060bcb782baf002859b2a2c63267.tar.gz
blackbird-op-linux-9a6b55ac4a44060bcb782baf002859b2a2c63267.zip
lib/vdso: Make __arch_update_vdso_data() logic understandable
The function name suggests that this is a boolean checking whether the architecture asks for an update of the VDSO data, but it works the other way round. To spare further confusion invert the logic. Fixes: 44f57d788e7d ("timekeeping: Provide a generic update_vsyscall() implementation") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20200114185946.656652824@linutronix.de
-rw-r--r--arch/arm/include/asm/vdso/vsyscall.h4
-rw-r--r--include/asm-generic/vdso/vsyscall.h4
-rw-r--r--kernel/time/vsyscall.c2
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm/include/asm/vdso/vsyscall.h b/arch/arm/include/asm/vdso/vsyscall.h
index c4166f317071..cff87d8d30da 100644
--- a/arch/arm/include/asm/vdso/vsyscall.h
+++ b/arch/arm/include/asm/vdso/vsyscall.h
@@ -34,9 +34,9 @@ struct vdso_data *__arm_get_k_vdso_data(void)
#define __arch_get_k_vdso_data __arm_get_k_vdso_data
static __always_inline
-int __arm_update_vdso_data(void)
+bool __arm_update_vdso_data(void)
{
- return !cntvct_ok;
+ return cntvct_ok;
}
#define __arch_update_vdso_data __arm_update_vdso_data
diff --git a/include/asm-generic/vdso/vsyscall.h b/include/asm-generic/vdso/vsyscall.h
index ce4103208619..cec543d9e87b 100644
--- a/include/asm-generic/vdso/vsyscall.h
+++ b/include/asm-generic/vdso/vsyscall.h
@@ -12,9 +12,9 @@ static __always_inline struct vdso_data *__arch_get_k_vdso_data(void)
#endif /* __arch_get_k_vdso_data */
#ifndef __arch_update_vdso_data
-static __always_inline int __arch_update_vdso_data(void)
+static __always_inline bool __arch_update_vdso_data(void)
{
- return 0;
+ return true;
}
#endif /* __arch_update_vdso_data */
diff --git a/kernel/time/vsyscall.c b/kernel/time/vsyscall.c
index 5ee0f7709410..f0aab6182824 100644
--- a/kernel/time/vsyscall.c
+++ b/kernel/time/vsyscall.c
@@ -84,7 +84,7 @@ void update_vsyscall(struct timekeeper *tk)
struct vdso_timestamp *vdso_ts;
u64 nsec;
- if (__arch_update_vdso_data()) {
+ if (!__arch_update_vdso_data()) {
/*
* Some architectures might want to skip the update of the
* data page.
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