diff options
| author | Brian Gerst <brgerst@gmail.com> | 2015-07-19 21:09:04 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-21 09:12:23 +0200 |
| commit | 0233606ce5cf12c1a0e27cb197066ea5bc2bb488 (patch) | |
| tree | 4003c65d5e2e1f9e7e0384d3d22586794ba49f3f /arch/x86/include/asm/processor.h | |
| parent | bf9f2ee28d475ada0005c59382852cb70f1419ac (diff) | |
x86/entry/vm86: Clean up saved_fs/gs
There is no need to save FS and non-lazy GS outside the 32-bit
regs. Lazy GS still needs to be saved because it wasn't saved
on syscall entry. Save it in the gs slot of regs32, which is
present but unused.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1437354550-25858-2-git-send-email-brgerst@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 43e6519df0d5..f4e4e3ff753c 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -410,8 +410,6 @@ struct thread_struct { unsigned long v86flags; unsigned long v86mask; unsigned long saved_sp0; - unsigned int saved_fs; - unsigned int saved_gs; #endif /* IO permissions: */ unsigned long *io_bitmap_ptr; |