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authorLaura Abbott <labbott@redhat.com>2017-05-09 01:57:59 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 03:15:13 +0300
commit299878bac326c890699c696ebba26f56fe93fc75 (patch)
treee9f9ba4a5deef3486e0a4371edc6ecccbe6d63f5 /include/asm-generic/set_memory.h
parent8ac1ed791401790968fd00ca63ca4fa814677199 (diff)
downloadlinux-299878bac326c890699c696ebba26f56fe93fc75.tar.xz
treewide: move set_memory_* functions away from cacheflush.h
Patch series "set_memory_* functions header refactor", v3. The set_memory_* APIs came out of a desire to have a better way to change memory attributes. Many of these attributes were linked to cache functionality so the prototypes were put in cacheflush.h. These days, the APIs have grown and have a much wider use than just cache APIs. To support this growth, split off set_memory_* and friends into a separate header file to avoid growing cacheflush.h for APIs that have nothing to do with caches. Link: http://lkml.kernel.org/r/1488920133-27229-2-git-send-email-labbott@redhat.com Signed-off-by: Laura Abbott <labbott@redhat.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic/set_memory.h')
-rw-r--r--include/asm-generic/set_memory.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-generic/set_memory.h b/include/asm-generic/set_memory.h
new file mode 100644
index 000000000000..83e81f8996b2
--- /dev/null
+++ b/include/asm-generic/set_memory.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_SET_MEMORY_H
+#define __ASM_SET_MEMORY_H
+
+/*
+ * Functions to change memory attributes.
+ */
+int set_memory_ro(unsigned long addr, int numpages);
+int set_memory_rw(unsigned long addr, int numpages);
+int set_memory_x(unsigned long addr, int numpages);
+int set_memory_nx(unsigned long addr, int numpages);
+
+#endif