openwrtv3/target/linux/generic/patches-4.4/309-mips_fuse_workaround.patch
Felix Fietkau e8e4b6eed8 kernel: fix a small bug in the MIPS highmem fix
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48482
2016-01-25 10:28:29 +00:00

32 lines
959 B
Diff

--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -39,6 +39,7 @@ void (*__flush_cache_vunmap)(void);
void (*__flush_kernel_vmap_range)(unsigned long vaddr, int size);
EXPORT_SYMBOL_GPL(__flush_kernel_vmap_range);
+EXPORT_SYMBOL(__flush_cache_all);
void (*__invalidate_kernel_vmap_range)(unsigned long vaddr, int size);
/* MIPS specific cache operations */
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -19,6 +19,9 @@
#include <linux/pipe_fs_i.h>
#include <linux/swap.h>
#include <linux/splice.h>
+#ifdef CONFIG_MIPS
+#include <asm/cacheflush.h>
+#endif
MODULE_ALIAS_MISCDEV(FUSE_MINOR);
MODULE_ALIAS("devname:fuse");
@@ -802,6 +805,9 @@ static int fuse_copy_fill(struct fuse_co
static int fuse_copy_do(struct fuse_copy_state *cs, void **val, unsigned *size)
{
unsigned ncpy = min(*size, cs->len);
+#ifdef CONFIG_MIPS
+ __flush_cache_all();
+#endif
if (val) {
void *pgaddr = kmap_atomic(cs->pg);
void *buf = pgaddr + cs->offset;