vserver 1.9.5.x5

[linux-2.6.git] / arch / mips / mm / cache.c

diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 98ba863..e51ae38 100644 (file)
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -45,10 +45,17 @@ EXPORT_SYMBOL(_dma_cache_inv);
 
 #endif /* CONFIG_DMA_NONCOHERENT */
 
-asmlinkage int sys_cacheflush(void *addr, int bytes, int cache)
+/*
+ * We could optimize the case where the cache argument is not BCACHE but
+ * that seems very atypical use ...
+ */
+asmlinkage int sys_cacheflush(unsigned long addr, unsigned long int bytes,
+       unsigned int cache)
 {
-       /* This should flush more selectivly ...  */
-       __flush_cache_all();
+       if (verify_area(VERIFY_WRITE, (void *) addr, bytes))
+               return -EFAULT;
+
+       flush_icache_range(addr, addr + bytes);
 
        return 0;
 }