Messages in this thread Patch in this message | | | Date | Mon, 6 Jun 2011 08:33:33 GMT | From | tip-bot for Andy Lutomirski <> | Subject | [tip:x86/vdso] x86-64: Remove vsyscall number 3 (venosys) |
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Commit-ID: bb5fe2f78eadf5a52d8dcbf9a57728fd107af97b Gitweb: http://git.kernel.org/tip/bb5fe2f78eadf5a52d8dcbf9a57728fd107af97b Author: Andy Lutomirski <luto@mit.edu> AuthorDate: Sun, 5 Jun 2011 13:50:22 -0400 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Mon, 6 Jun 2011 09:43:14 +0200
x86-64: Remove vsyscall number 3 (venosys)
It just segfaults since April 2008 (a4928cff), so I'm pretty sure that nothing uses it. And having an empty section makes the linker script a bit fragile.
Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Jan Beulich <JBeulich@novell.com> Cc: richard -rw- weinberger <richard.weinberger@gmail.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Cc: Andi Kleen <andi@firstfloor.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Louis Rilling <Louis.Rilling@kerlabs.com> Cc: Valdis.Kletnieks@vt.edu Cc: pageexec@freemail.hu Link: http://lkml.kernel.org/r/4a4abcf47ecadc269f2391a313576fe6d06acef7.1307292171.git.luto@mit.edu Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/vmlinux.lds.S | 4 ---- arch/x86/kernel/vsyscall_64.c | 5 ----- 2 files changed, 0 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 98b378d..4f90082 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -182,10 +182,6 @@ SECTIONS *(.vsyscall_2) } - .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) { - *(.vsyscall_3) - } - . = ALIGN(__vsyscall_0 + PAGE_SIZE, PAGE_SIZE); #undef VSYSCALL_ADDR diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index 9b2f3f5..70a5f6e 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -209,11 +209,6 @@ vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) return 0; } -static long __vsyscall(3) venosys_1(void) -{ - return -ENOSYS; -} - /* Assume __initcall executes before all user space. Hopefully kmod doesn't violate that. We'll find out if it does. */ static void __cpuinit vsyscall_set_cpu(int cpu)
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