[MIPS] Handle aliases in vmalloc correctly.

flush_cache_vmap / flush_cache_vunmap were calling flush_cache_all which -
having been deprecated - turned into a nop ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6496925b5e29..77aefb4ebedd 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -361,6 +361,16 @@ static inline int has_valid_asid(const struct mm_struct *mm)
 #endif
 }
 
+static void r4k__flush_cache_vmap(void)
+{
+        r4k_blast_dcache();
+}
+
+static void r4k__flush_cache_vunmap(void)
+{
+        r4k_blast_dcache();
+}
+
 static inline void local_r4k_flush_cache_range(void * args)
 {
         struct vm_area_struct *vma = args;
@@ -1281,6 +1291,10 @@ void __cpuinit r4k_cache_init(void)
                                         PAGE_SIZE - 1);
         else
                 shm_align_mask = PAGE_SIZE-1;
+
+        __flush_cache_vmap      = r4k__flush_cache_vmap;
+        __flush_cache_vunmap    = r4k__flush_cache_vunmap;
+
         flush_cache_all         = cache_noop;
         __flush_cache_all       = r4k___flush_cache_all;
         flush_cache_mm          = r4k_flush_cache_mm;