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x86/mm: Reduce indentation in flush_tlb_func()

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The leave_mm() case can just exit the function early so we don't
need to indent the entire remainder of the function.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/97901ddcc9821d7bc7b296d2918d1179f08aaf22.1495492063.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Lutomirski 2017-05-22 15:30:02 -07:00 • committed by Ingo Molnar
parent ca6c99c079
commit b3b90e5af7
1 changed files with 19 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

36
arch/x86/mm/tlb.c
View file

@ -237,24 +237,26 @@ static void flush_tlb_func(void *info)
return; return;
count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED); count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) {
if (f->flush_end == TLB_FLUSH_ALL) {
local_flush_tlb();
trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, TLB_FLUSH_ALL);
} else {
unsigned long addr;
unsigned long nr_pages =
(f->flush_end - f->flush_start) / PAGE_SIZE;
addr = f->flush_start;
while (addr < f->flush_end) {
__flush_tlb_single(addr);
addr += PAGE_SIZE;
}
trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, nr_pages);
}
} else
leave_mm(smp_processor_id());
if (this_cpu_read(cpu_tlbstate.state) != TLBSTATE_OK) {
leave_mm(smp_processor_id());
return;
}
if (f->flush_end == TLB_FLUSH_ALL) {
local_flush_tlb();
trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, TLB_FLUSH_ALL);
} else {
unsigned long addr;
unsigned long nr_pages =
(f->flush_end - f->flush_start) / PAGE_SIZE;
addr = f->flush_start;
while (addr < f->flush_end) {
__flush_tlb_single(addr);
addr += PAGE_SIZE;
}
trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, nr_pages);
}
} }
void native_flush_tlb_others(const struct cpumask *cpumask, void native_flush_tlb_others(const struct cpumask *cpumask,