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authorYury Norov <ynorov@caviumnetworks.com>2015-12-02 14:00:10 +0000
committerAlex Shi <alex.shi@linaro.org>2016-05-11 15:56:34 +0800
commit2e310797997214e0cc606013ac308167b6b72dc0 (patch)
tree5a153c186ee56d479874fd6425d2819a4d15e8cb /arch/arm64/include
parent1a9cc42c0a812241f6cd679a19aefba2900437a7 (diff)
arm64: fix COMPAT_SHMLBA definition for large pages
ARM glibc uses (4 * __getpagesize()) for SHMLBA, which is correct for 4KB pages and works fine for 64KB pages, but the kernel uses a hardcoded 16KB that is too small for 64KB page based kernels. This changes the definition to what user space sees when using 64KB pages. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Will Deacon <will.deacon@arm.com> (cherry picked from commit b9b7aebb42d1b1392f3111de61136bb6cf3aae3f) Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'arch/arm64/include')
-rw-r--r--arch/arm64/include/asm/shmparam.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/shmparam.h b/arch/arm64/include/asm/shmparam.h
index 4df608a8459e..e368a55ebd22 100644
--- a/arch/arm64/include/asm/shmparam.h
+++ b/arch/arm64/include/asm/shmparam.h
@@ -21,7 +21,7 @@
* alignment value. Since we don't have aliasing D-caches, the rest of
* the time we can safely use PAGE_SIZE.
*/
-#define COMPAT_SHMLBA 0x4000
+#define COMPAT_SHMLBA (4 * PAGE_SIZE)
#include <asm-generic/shmparam.h>