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Commit d756f4ad authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Ingo Molnar
Browse files

x86, 32-bit: ifdef out struct thread_struct::fs 



After commit 464d1a78 aka
"[PATCH] i386: Convert i386 PDA code to use %fs"
%fs saved during context switch moved from thread_struct to pt_regs
and value on thread_struct became unused.

[ Impact: reduce thread_struct size on 32-bit ]

Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Cc: containers@lists.linux-foundation.org
LKML-Reference: <20090503232952.GI16631@x200.localdomain>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent edc953fa

arch/x86/include/asm/processor.h

+2 −1
Original line number Diff line number Diff line
@@ -428,7 +428,9 @@ struct thread_struct { 
	unsigned short		gsindex;

#endif

	unsigned long		ip;

#ifdef CONFIG_X86_64

	unsigned long		fs;

#endif

	unsigned long		gs;

	/* Hardware debugging registers: */

	unsigned long		debugreg0;
@@ -874,7 +876,6 @@ static inline void spin_lock_prefetch(const void *x) 
	.vm86_info		= NULL,					  \

	.sysenter_cs		= __KERNEL_CS,				  \

	.io_bitmap_ptr		= NULL,					  \

	.fs			= __KERNEL_PERCPU,			  \

}



/*