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authorIngo Molnar <mingo@elte.hu>2009-02-25 10:21:52 +0300
committerIngo Molnar <mingo@elte.hu>2009-02-25 12:20:03 +0300
commit3255aa2eb636a508fc82a73fabbb8aaf2ff23c0f (patch)
tree2a602fb8f4fefe666e8daedf1e1f755800bd700a /arch/x86/include/asm/uaccess_64.h
parent95f66b3770d6d0755b4a2d818c237574ffd74e4c (diff)
downloadlinux-3255aa2eb636a508fc82a73fabbb8aaf2ff23c0f.tar.xz
x86, mm: pass in 'total' to __copy_from_user_*nocache()
Impact: cleanup, enable future change Add a 'total bytes copied' parameter to __copy_from_user_*nocache(), and update all the callsites. The parameter is not used yet - architecture code can use it to more intelligently decide whether the copy should be cached or non-temporal. Cc: Salman Qazi <sqazi@google.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/uaccess_64.h')
-rw-r--r--arch/x86/include/asm/uaccess_64.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 987a2c10fe20..a748253db0c9 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -189,7 +189,7 @@ extern long __copy_user_nocache(void *dst, const void __user *src,
unsigned size, int zerorest);
static inline int __copy_from_user_nocache(void *dst, const void __user *src,
- unsigned size)
+ unsigned size, unsigned long total)
{
might_sleep();
/*
@@ -205,8 +205,7 @@ static inline int __copy_from_user_nocache(void *dst, const void __user *src,
}
static inline int __copy_from_user_inatomic_nocache(void *dst,
- const void __user *src,
- unsigned size)
+ const void __user *src, unsigned size, unsigned total)
{
if (likely(size >= PAGE_SIZE))
return __copy_user_nocache(dst, src, size, 0);