diff options
| author |   Vincenzo Frascino <vincenzo.frascino@arm.com> | 2019-04-29 18:27:13 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2019-04-30 11:04:50 +0100 |
| commit | 359db57c34af15edf35492944af4d4417f59886c (patch) | |
| tree | 6c6d3bc4a283eeb6a4d787ab3d0f715df1d21c87 /arch/arm64 | |
| parent | arm64: arch_timer: Ensure counter register reads occur with seqlock held (diff) | |
| download | linux-dev-359db57c34af15edf35492944af4d4417f59886c.tar.xz linux-dev-359db57c34af15edf35492944af4d4417f59886c.zip | |
arm64: compat: Reduce address limit for 64K pages
With the introduction of the config option that allows to enable kuser
helpers, it is now possible to reduce TASK_SIZE_32 when these are
disabled and 64K pages are enabled. This extends the compliance with
the section 6.5.8 of the C standard (C99).
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/processor.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 228af56ece48..fcd0e691b1ea 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -57,7 +57,7 @@ #define TASK_SIZE_64 (UL(1) << vabits_user) #ifdef CONFIG_COMPAT -#ifdef CONFIG_ARM64_64K_PAGES +#if defined(CONFIG_ARM64_64K_PAGES) && defined(CONFIG_KUSER_HELPERS) /* * With CONFIG_ARM64_64K_PAGES enabled, the last page is occupied * by the compat vectors page. |