Introduce the size param for clflush_cache_range().
Signed-off-by: Anil S Keshavamurthy <[email protected]>
---
arch/x86_64/mm/pageattr.c | 6 +++---
include/asm-x86_64/cacheflush.h | 1 +
2 files changed, 4 insertions(+), 3 deletions(-)
Index: linux-2.6.22-rc4-mm2/arch/x86_64/mm/pageattr.c
===================================================================
--- linux-2.6.22-rc4-mm2.orig/arch/x86_64/mm/pageattr.c 2007-06-18 15:45:39.000000000 -0700
+++ linux-2.6.22-rc4-mm2/arch/x86_64/mm/pageattr.c 2007-06-18 15:45:46.000000000 -0700
@@ -61,10 +61,10 @@
return base;
}
-static void cache_flush_page(void *adr)
+void clflush_cache_range(void *adr, int size)
{
int i;
- for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+ for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
asm volatile("clflush (%0)" :: "r" (adr + i));
}
@@ -80,7 +80,7 @@
list_for_each_entry(pg, l, lru) {
void *adr = page_address(pg);
if (cpu_has_clflush)
- cache_flush_page(adr);
+ clflush_cache_range(adr, PAGE_SIZE);
}
__flush_tlb_all();
}
Index: linux-2.6.22-rc4-mm2/include/asm-x86_64/cacheflush.h
===================================================================
--- linux-2.6.22-rc4-mm2.orig/include/asm-x86_64/cacheflush.h 2007-06-18 15:45:39.000000000 -0700
+++ linux-2.6.22-rc4-mm2/include/asm-x86_64/cacheflush.h 2007-06-18 15:45:46.000000000 -0700
@@ -27,6 +27,7 @@
void global_flush_tlb(void);
int change_page_attr(struct page *page, int numpages, pgprot_t prot);
int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot);
+void clflush_cache_range(void *addr, int size);
#ifdef CONFIG_DEBUG_RODATA
void mark_rodata_ro(void);
--