kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

m32r: make flush_cpumask non-volatile.

Browse source 
We cast away the volatile, but really, why make it volatile at all?
We already do a mb() inside the cpumask_empty() loop.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rusty Russell 2015-05-09 03:39:52 +09:30 committed by Linus Torvalds
parent 95c607d93f
commit 1a9f064f51
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
arch/m32r/kernel/smp.c
View file

@ -45,7 +45,7 @@ static volatile unsigned long flushcache_cpumask = 0;
/*
* For flush_tlb_others()
*/
static volatile cpumask_t flush_cpumask;
static cpumask_t flush_cpumask;
static struct mm_struct *flush_mm;
static struct vm_area_struct *flush_vma;
static volatile unsigned long flush_va;
@ -415,7 +415,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
*/
send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);
while (!cpumask_empty((cpumask_t*)&flush_cpumask)) {
while (!cpumask_empty(&flush_cpumask)) {
/* nothing. lockup detection does not belong here */
mb();
}
@ -468,7 +468,7 @@ void smp_invalidate_interrupt(void)
__flush_tlb_page(va);
}
}
cpumask_clear_cpu(cpu_id, (cpumask_t*)&flush_cpumask);
cpumask_clear_cpu(cpu_id, &flush_cpumask);
}
/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/