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uaccess: remove segment_eq

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segment_eq is only used to implement uaccess_kernel.  Just open code
uaccess_kernel in the arch uaccess headers and remove one layer of
indirection.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Greentime Hu <green.hu@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Link: http://lkml.kernel.org/r/20200710135706.537715-5-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
2020-08-11 18:33:44 -07:00
committed by Linus Torvalds
parent efbfc62e1d
commit 428e2976a5
24 changed files with 25 additions and 32 deletions
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2
arch/x86/include/asm/uaccess.h
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@@ -33,7 +33,7 @@ static inline void set_fs(mm_segment_t fs)
set_thread_flag(TIF_FSCHECK);
}
#define segment_eq(a, b) ((a).seg == (b).seg)
#define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg)
#define user_addr_max() (current->thread.addr_limit.seg)
/*