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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-30 18:02:02 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-30 18:02:02 +0200
commit06b2e9886e039c2f1b3048c47e539b80ab4155b0 (patch)
treecdc295333e93cf407fd205b21f31a12d75b0a635 /arch/parisc/include
parentRevert "cpusets: randomize node rotor used in cpuset_mem_spread_node()" (diff)
parentparisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic (diff)
downloadlinux-06b2e9886e039c2f1b3048c47e539b80ab4155b0.tar.xz
linux-06b2e9886e039c2f1b3048c47e539b80ab4155b0.zip
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic parisc: Remove unnecessary macros from entry.S parisc: LWS fixes for syscall.S parisc: Delete unnecessary nop's in entry.S parisc: Avoid interruption in critical region in entry.S parisc: invoke oom-killer from page fault parisc: clear floating point exception flag on SIGFPE signal parisc: Use of align_frame provides stack frame.
Diffstat (limited to 'arch/parisc/include')
-rw-r--r--arch/parisc/include/asm/cacheflush.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 477277739da5..4556d820128a 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
#define _PARISC_CACHEFLUSH_H
#include <linux/mm.h>
+#include <linux/uaccess.h>
/* The usual comment is "Caches aren't brain-dead on the <architecture>".
* Unfortunately, that doesn't apply to PA-RISC. */
@@ -125,11 +126,20 @@ static inline void *kmap(struct page *page)
#define kunmap(page) kunmap_parisc(page_address(page))
-#define kmap_atomic(page, idx) page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+ pagefault_disable();
+ return page_address(page);
+}
-#define kunmap_atomic(addr, idx) kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+ kunmap_parisc(addr);
+ pagefault_enable();
+}
-#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
+#define kmap_atomic_prot(page, idx, prot) kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#endif