Commit b9b7aebb authored Dec 02, 2015 by Yury Norov Committed by Will Deacon Dec 02, 2015

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>

parent a7c61a34

arch/arm64/include/asm/shmparam.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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>