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| author | Yury Norov <ynorov@caviumnetworks.com> | 2015-12-02 14:00:10 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-12-02 14:00:10 +0000 |
| commit | b9b7aebb42d1b1392f3111de61136bb6cf3aae3f (patch) | |
| tree | d9d942330eb79f5d44fa71fbe9c437daeac7c1b0 /arch/arm64/include | |
| parent | a7c61a3452d39078919f0e1f493ff966fb64f0db (diff) | |
| download | lwn-b9b7aebb42d1b1392f3111de61136bb6cf3aae3f.tar.gz lwn-b9b7aebb42d1b1392f3111de61136bb6cf3aae3f.zip | |
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>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/shmparam.h | 2 |
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> |