diff options
| author | Arjan van de Ven <arjan@infradead.org> | 2006-01-06 00:12:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:33:36 -0800 |
| commit | bb152f53120d66c98c1f16518407df6a84f23714 (patch) | |
| tree | 6696d5eccee5af88a7326edaebbd819e628b3e2c /arch/x86_64 | |
| parent | 67df197b1a07944c2e0e40ded3d4fd07d108e110 (diff) | |
| download | blackbird-op-linux-bb152f53120d66c98c1f16518407df6a84f23714.tar.gz blackbird-op-linux-bb152f53120d66c98c1f16518407df6a84f23714.zip | |
[PATCH] x86/x86_64: mark rodata section read-only: make some datastructures const
Mark some key kernel datastructures readonly. This patch was previously
posted on Jun 28th but was back then not merged because nothing was enforcing
rodata anyway.. well that changed now :)
Patch by Christoph Lameter <christoph@lameter.com> and Dave Jones
<davej@redhat.com>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/ia32/ia32entry.S | 2 | ||||
| -rw-r--r-- | arch/x86_64/kernel/syscall.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index e0eb0c712fe9..df0773c9bdbe 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -341,7 +341,7 @@ ENTRY(ia32_ptregs_common) jmp ia32_sysret /* misbalances the return cache */ CFI_ENDPROC - .data + .section .rodata,"a" .align 8 .globl ia32_sys_call_table ia32_sys_call_table: diff --git a/arch/x86_64/kernel/syscall.c b/arch/x86_64/kernel/syscall.c index e263685f864c..7c176b3edde0 100644 --- a/arch/x86_64/kernel/syscall.c +++ b/arch/x86_64/kernel/syscall.c @@ -19,7 +19,7 @@ typedef void (*sys_call_ptr_t)(void); extern void sys_ni_syscall(void); -sys_call_ptr_t sys_call_table[__NR_syscall_max+1] __cacheline_aligned = { +const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = { /* Smells like a like a compiler bug -- it doesn't work when the & below is removed. */ [0 ... __NR_syscall_max] = &sys_ni_syscall, #include <asm-x86_64/unistd.h> |
