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Commit dcfa7262 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Thomas Gleixner
Browse files

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: default avatarChristoph Hellwig <hch@lst.de>
LKML-Reference: <20100628121614.GB6605@lst.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 7974891d

arch/x86/Kconfig.debug

+0 −9
Original line number Diff line number Diff line
@@ -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
Original line number Diff line number Diff line
@@ -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
Original line number Diff line number Diff line
@@ -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