diff options
| author | Christoph Hellwig <hch@lst.de> | 2010-06-28 14:16:14 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-06-29 12:12:59 +0200 |
| commit | dcfa726280116dd31adad37da940f542663567d0 (patch) | |
| tree | 93d59c5a3d548d0d6598e3ff2a8dc96c5f0b7b53 | |
| parent | x86: Always use irq stacks (diff) | |
| download | linux-dcfa726280116dd31adad37da940f542663567d0.tar.xz linux-dcfa726280116dd31adad37da940f542663567d0.zip | |
x86: Remove CONFIG_4KSTACKS
These days 4 kilobytes of stack just aren't enough for reliably operation,
and people using lots of threads have long switched to 64-bit kernels, so
remove the CONFIG_4KSTACKS option.
Signed-off-by: Christoph Hellwig <hch@lst.de>
LKML-Reference: <20100628121614.GB6605@lst.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/x86/Kconfig.debug | 9 | ||||
| -rw-r--r-- | arch/x86/include/asm/module.h | 7 | ||||
| -rw-r--r-- | arch/x86/include/asm/page_32_types.h | 4 |
3 files changed, 1 insertions, 19 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index badda8e20e78..7f1530838bc8 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -121,15 +121,6 @@ config DEBUG_NX_TEST and the software setup of this feature. If in doubt, say "N" -config 4KSTACKS - bool "Use 4Kb for kernel stacks instead of 8Kb" - depends on X86_32 - ---help--- - If you say Y here the kernel will use a 4Kb stacksize for the - kernel stack attached to each process/thread. This facilitates - running more threads on a system and also reduces the pressure - on the VM subsystem for higher order allocations. - config DOUBLEFAULT default y bool "Enable doublefault exception handler" if EMBEDDED diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h index 3e2ce58a31a3..67763c5d8b4e 100644 --- a/arch/x86/include/asm/module.h +++ b/arch/x86/include/asm/module.h @@ -60,12 +60,7 @@ #endif #ifdef CONFIG_X86_32 -# ifdef CONFIG_4KSTACKS -# define MODULE_STACKSIZE "4KSTACKS " -# else -# define MODULE_STACKSIZE "" -# endif -# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE +# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY #endif #endif /* _ASM_X86_MODULE_H */ diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h index 6f1b7331313f..ade619ff9e2a 100644 --- a/arch/x86/include/asm/page_32_types.h +++ b/arch/x86/include/asm/page_32_types.h @@ -15,11 +15,7 @@ */ #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) -#ifdef CONFIG_4KSTACKS -#define THREAD_ORDER 0 -#else #define THREAD_ORDER 1 -#endif #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) #define STACKFAULT_STACK 0 |