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
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 1eca2b7..248d9e8 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -697,10 +697,7 @@ static inline void local_r4k_flush_cache_page(void *args)
}
if (exec) {
if (vaddr && cpu_has_vtag_icache && mm == current->active_mm) {
- int cpu = smp_processor_id();
-
- if (cpu_context(cpu, mm) != 0)
- drop_mmu_context(mm);
+ drop_mmu_context(mm);
} else
vaddr ? r4k_blast_icache_page(addr) :
r4k_blast_icache_user_page(addr);
