x86/mm: Refactor cond_ibpb() to support other use cases

Browse source

cond_ibpb() has the necessary bits required to track the previous mm in
switch_mm_irqs_off(). This can be reused for other use cases like L1D
flushing on context switch.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Balbir Singh <sblbir@amazon.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210108121056.21940-3-sblbir@amazon.com

...

This commit is contained in:

Balbir Singh 2021-01-08 23:10:53 +11:00 • committed by Thomas Gleixner

parent c52787b590

commit 371b09c6fd

2 changed files with 30 additions and 25 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/x86/include/asm/tlbflush.h

View file

53

arch/x86/mm/tlb.c

View file