Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=844b43adba74d97f15e56b103c97bfcccaa01aa6
Commit: 844b43adba74d97f15e56b103c97bfcccaa01aa6
Parent: 3ce54450461bad18bbe1f9f5aa3ecd2f8e8d1235
Author: Carmelo Amoroso <[EMAIL PROTECTED]>
AuthorDate: Mon Jan 7 13:50:18 2008 +0900
Committer: Paul Mundt <[EMAIL PROTECTED]>
CommitDate: Mon Jan 7 13:50:18 2008 +0900
sh: Fix argument page dcache flushing regression.
In the do_execve() path, argument page handling used to explicitly call
flush_dcache_page() for each page, this has since been reworked and
uses flush_kernel_dcache_page() instead, which is presently a nop.
Doing a simple modprobe/rmmod in a loop under busybox consistently
manages to crash without providing a sane flush_kernel_dcache_page()
implementation, so, plug in a simple implementation.
Signed-off-by: Carmelo Amoroso <[EMAIL PROTECTED]>
Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>
---
include/asm-sh/cacheflush.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h
index 9d528ad..e034c36 100644
--- a/include/asm-sh/cacheflush.h
+++ b/include/asm-sh/cacheflush.h
@@ -43,6 +43,12 @@ extern void __flush_purge_region(void *start, int size);
extern void __flush_invalidate_region(void *start, int size);
#endif
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+static inline void flush_kernel_dcache_page(struct page *page)
+{
+ flush_dcache_page(page);
+}
+
#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
extern void copy_to_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,
-
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