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Commit ba0635fc authored by Michael Ellerman's avatar Michael Ellerman
Browse files

powerpc: Rename thread_struct.fs to addr_limit 



It's called 'fs' for historical reasons, it's named after the x86 'FS'
register. But we don't have to use that name for the member of
thread_struct, and in fact arch/x86 doesn't even call it 'fs' anymore.

So rename it to 'addr_limit', which better reflects what it's used
for, and is also the name used on other arches.

Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 6bcdd297

arch/powerpc/include/asm/processor.h

+3 −3
Original line number Diff line number Diff line
@@ -249,7 +249,7 @@ struct thread_struct { 
	unsigned long	ksp_vsid;

#endif

	struct pt_regs	*regs;		/* Pointer to saved register state */

	mm_segment_t	fs;		/* for get_fs() validation */

	mm_segment_t	addr_limit;	/* for get_fs() validation */

#ifdef CONFIG_BOOKE

	/* BookE base exception scratch space; align on cacheline */

	unsigned long	normsave[8] ____cacheline_aligned;
@@ -379,7 +379,7 @@ struct thread_struct { 
#define INIT_THREAD { \

	.ksp = INIT_SP, \

	.ksp_limit = INIT_SP_LIMIT, \

	.fs = KERNEL_DS, \

	.addr_limit = KERNEL_DS, \

	.pgdir = swapper_pg_dir, \

	.fpexc_mode = MSR_FE0 | MSR_FE1, \

	SPEFSCR_INIT \
@@ -388,7 +388,7 @@ struct thread_struct { 
#define INIT_THREAD  { \

	.ksp = INIT_SP, \

	.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \

	.fs = KERNEL_DS, \

	.addr_limit = KERNEL_DS, \

	.fpexc_mode = 0, \

	.ppr = INIT_PPR, \

	.fscr = FSCR_TAR | FSCR_EBB \

arch/powerpc/include/asm/uaccess.h

+2 −2
Original line number Diff line number Diff line
@@ -30,8 +30,8 @@ 
#endif



#define get_ds()	(KERNEL_DS)

#define get_fs()	(current->thread.fs)

#define set_fs(val)	(current->thread.fs = (val))

#define get_fs()	(current->thread.addr_limit)

#define set_fs(val)	(current->thread.addr_limit = (val))



#define segment_eq(a, b)	((a).seg == (b).seg)