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authorPaul Burton <paul.burton@mips.com>2019-02-02 01:43:19 +0000
committerPaul Burton <paul.burton@mips.com>2019-02-04 10:56:18 -0800
commitc9b2a3dc240c444b4f7b556e2cce756828720856 (patch)
tree973ec0ea4be746b49f52f03c1f7d8244bcd0cb80 /arch/mips/mm/tlb-r4k.c
parent67741ba3ba006558ac3541488c1db9dff9507e73 (diff)
MIPS: mm: Consolidate drop_mmu_context() has-ASID checks
If an mm does not have an ASID on the local CPU then drop_mmu_context() is always redundant, since there's no context to "drop". Various callers of drop_mmu_context() check whether the mm has been allocated an ASID before making the call. Move that check into drop_mmu_context() and remove it from callers to simplify them. Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org
Diffstat (limited to 'arch/mips/mm/tlb-r4k.c')
-rw-r--r--arch/mips/mm/tlb-r4k.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 6c99dfff71b2..ba76b0c11d38 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -108,16 +108,8 @@ EXPORT_SYMBOL(local_flush_tlb_all);
these entries, we just bump the asid. */
void local_flush_tlb_mm(struct mm_struct *mm)
{
- int cpu;
-
preempt_disable();
-
- cpu = smp_processor_id();
-
- if (cpu_context(cpu, mm) != 0) {
- drop_mmu_context(mm);
- }
-
+ drop_mmu_context(mm);
preempt_enable();
}