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authorAndrew Morton <akpm@linux-foundation.org>2011-07-26 04:12:18 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 07:57:09 +0400
commitc9d8c3d0896bfa5b57531ecc41a85ffbc6d87dbe (patch)
tree0de7519c20e066c820d37ff32be319745e7a2f8e /include/linux/poison.h
parentbe8f684d73d8d916847e996bf69cef14352872c6 (diff)
downloadlinux-c9d8c3d0896bfa5b57531ecc41a85ffbc6d87dbe.tar.xz
mm/memblock.c: avoid abuse of RED_INACTIVE
RED_INACTIVE is a slab thing, and reusing it for memblock was inappropriate, because memblock is dealing with phys_addr_t's which have a Kconfigurable sizeof(). Create a new poison type for this application. Fixes the sparse warning warning: cast truncates bits from constant value (9f911029d74e35b becomes 9d74e35b) Reported-by: H Hartley Sweeten <hartleys@visionengravers.com> Tested-by: H Hartley Sweeten <hartleys@visionengravers.com> Acked-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/poison.h')
-rw-r--r--include/linux/poison.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/poison.h b/include/linux/poison.h
index 2110a81c5e2a..79159de0e341 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -40,6 +40,12 @@
#define RED_INACTIVE 0x09F911029D74E35BULL /* when obj is inactive */
#define RED_ACTIVE 0xD84156C5635688C0ULL /* when obj is active */
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+#define MEMBLOCK_INACTIVE 0x3a84fb0144c9e71bULL
+#else
+#define MEMBLOCK_INACTIVE 0x44c9e71bUL
+#endif
+
#define SLUB_RED_INACTIVE 0xbb
#define SLUB_RED_ACTIVE 0xcc