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| author | Andy Lutomirski <luto@kernel.org> | 2015-10-05 17:47:56 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-10-07 11:34:08 +0200 |
| commit | 0a6d1fa0d2b48fbae444e46e7f37a4832b2f8bdf (patch) | |
| tree | 56ab2ecf8d7a61c3cfbf96534cdef688c6f84a57 /arch/x86/ia32 | |
| parent | b611acf4736b5b00c89dcc238f640337832abcb4 (diff) | |
| download | linux-0a6d1fa0d2b48fbae444e46e7f37a4832b2f8bdf.tar.gz | |
x86/vdso: Remove runtime 32-bit vDSO selection
32-bit userspace will now always see the same vDSO, which is exactly what used to be the int80 vDSO. Subsequent patches will clean it up and make it support SYSENTER and SYSCALL using alternatives. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/e7e6b3526fa442502e6125fe69486aab50813c32.1444091584.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/ia32')
| -rw-r--r-- | arch/x86/ia32/ia32_signal.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index a0a19b7ba22d..e6a5c275cd3f 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -289,7 +289,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig, /* Return stub is in 32bit vsyscall page */ if (current->mm->context.vdso) restorer = current->mm->context.vdso + - selected_vdso32->sym___kernel_sigreturn; + vdso_image_32.sym___kernel_sigreturn; else restorer = &frame->retcode; } @@ -368,7 +368,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig, restorer = ksig->ka.sa.sa_restorer; else restorer = current->mm->context.vdso + - selected_vdso32->sym___kernel_rt_sigreturn; + vdso_image_32.sym___kernel_rt_sigreturn; put_user_ex(ptr_to_compat(restorer), &frame->pretcode); /* |