The patch titled
asm-generic/cacheflush.h: flush icache when copying to user pages
has been added to the -mm tree. Its filename is
asm-generic-cacheflushh-flush-icache-when-copying-to-user-pages.patch
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------------------------------------------------------
Subject: asm-generic/cacheflush.h: flush icache when copying to user pages
From: Mike Frysinger <vapier@xxxxxxxxxx>
The copy_to_user_page() function is supposed to flush the icache on the
memory that was written, but the current asm-generic version lacks that
logic. While normally it isn't a big deal as the asm-generic version of
icache flushing is a stub, it is a deal for ports that want to use the
asm-generic version as a baseline and then overlay its own specific parts
(like icache flushing).
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-generic/cacheflush.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff -puN include/asm-generic/cacheflush.h~asm-generic-cacheflushh-flush-icache-when-copying-to-user-pages include/asm-generic/cacheflush.h
--- a/include/asm-generic/cacheflush.h~asm-generic-cacheflushh-flush-icache-when-copying-to-user-pages
+++ a/include/asm-generic/cacheflush.h
@@ -24,7 +24,10 @@
#define flush_cache_vunmap(start, end) do { } while (0)
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
- memcpy(dst, src, len)
+ do { \
+ memcpy(dst, src, len); \
+ flush_icache_user_range(vma, page, vaddr, len); \
+ } while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
_
Patches currently in -mm which might be from vapier@xxxxxxxxxx are
origin.patch
backlight-new-driver-for-the-adp8870-backlight-devices.patch
backlight-add-backlight-type-fix.patch
linux-next.patch
mtd-convert-to-seq_file-interface.patch
net-irda-convert-bfin_sir-to-common-blackfin-uart-header.patch
asm-generic-cacheflushh-flush-icache-when-copying-to-user-pages.patch
lib-consolidate-debug_stack_usage-option.patch
asm-generic-ptraceh-start-a-common-low-level-ptrace-helper.patch
blackfin-convert-to-asm-generic-ptraceh.patch
x86-convert-to-asm-generic-ptraceh.patch
sh-convert-to-asm-generic-ptraceh.patch
kgdbts-unify-generalize-gdb-breakpoint-adjustment.patch
proc-constify-status-array.patch
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