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arm64: fix COMPAT_SHMLBA definition for large pages

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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>
This commit is contained in:
Yury Norov 2015-12-02 14:00:10 +00:00 committed by Will Deacon
parent a7c61a3452
commit b9b7aebb42
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/include/asm/shmparam.h
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@ -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>