x86: remove CONFIG_4KSTACKS
PATCH 2/2 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 32-bit kernels, so remove the CONFIG_4KSTACKS option.
Signed-off-by Christoph Hellwig <[email protected]>
arch/x86/Kconfig.debug +0 -9
@@ -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
arch/x86/include/asm/module.h +1 -6
@@ -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 */
arch/x86/include/asm/page_32_types.h +0 -4
@@ -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
[tip:x86/irq] x86: Remove CONFIG_4KSTACKS
Commit-ID: dcfa726280116dd31adad37da940f542663567d0 Gitweb: http://git.kernel.org/tip/dcfa726280116dd31adad37da940f542663567d0 Author: Christoph Hellwig <[email protected]> AuthorDate: Mon, 28 Jun 2010 14:16:14 +0200 Committer: Thomas Gleixner <[email protected]> CommitDate: Tue, 29 Jun 2010 12:12:59 +0200
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 <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by Thomas Gleixner <[email protected]>
--- arch/x86/Kconfig.debug | 9 --------- arch/x86/include/asm/module.h | 7 +------ arch/x86/include/asm/page_32_types.h | 4 ---- 3 files changed, 1 insertions(+), 19 deletions(-)
arch/x86/Kconfig.debug +0 -9
@@ -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
arch/x86/include/asm/module.h +1 -6
@@ -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 */
arch/x86/include/asm/page_32_types.h +0 -4
@@ -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