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kernel: replace the brcm47xx fuse workaround patches with a generic patch that applies to all mips targets

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The dcache bug that it works around is a generic issue, not a brcm47xx cache quirk

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32395 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2012-06-16 21:06:33 +00:00
parent 659b283c6c
commit 50d5344375
3 changed files with 32 additions and 74 deletions
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32
target/linux/generic/patches-3.3/309-mips_fuse_workaround.patch Normal file
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@@ -0,0 +1,32 @@
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -39,6 +39,7 @@ void (*__flush_kernel_vmap_range)(unsign
void (*__invalidate_kernel_vmap_range)(unsigned long vaddr, int size);
EXPORT_SYMBOL_GPL(__flush_kernel_vmap_range);
+EXPORT_SYMBOL(__flush_cache_all);
/* MIPS specific cache operations */
void (*flush_cache_sigtramp)(unsigned long addr);
--- 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");
@@ -655,6 +658,9 @@ 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) {
if (cs->write)
memcpy(cs->buf, *val, ncpy);