xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x86/entry: Convert reschedule interrupt to IDTENTRY_SYSVEC_SIMPLE

Browse Source 
The scheduler IPI does not need the full interrupt entry handling logic
when the entry is from kernel mode. Use IDTENTRY_SYSVEC_SIMPLE and spare
all the overhead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20200521202119.835425642@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-05-21 22:05:45 +02:00
parent cb09ea2924
commit 13cad9851e
9 changed files with 7 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/include/asm/trace/common.h
View File

@@ -5,12 +5,8 @@
DECLARE_STATIC_KEY_FALSE(trace_pagefault_key);
#define trace_pagefault_enabled() \
static_branch_unlikely(&trace_pagefault_key)
DECLARE_STATIC_KEY_FALSE(trace_resched_ipi_key);
#define trace_resched_ipi_enabled() \
static_branch_unlikely(&trace_resched_ipi_key)
#else
static inline bool trace_pagefault_enabled(void) { return false; }
static inline bool trace_resched_ipi_enabled(void) { return false; }
#endif
#endif