Messages in this thread Patch in this message | | | Date | Mon, 04 Apr 2011 15:16:59 -0400 | From | Steven Rostedt <> | Subject | [PATCH 5/6] jump label: Add _ASM_ALIGN for x86 and x86_64 |
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From: Jason Baron <jbaron@redhat.com>
The linker should not be adding holes to word size aligned pointers, but out of paranoia we are explicitly specifying that alignment. I have not seen any holes in the jump label section in practice.
Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <e119fbd060c9452c56063ea6148ba1070e7434cc.1300299760.git.jbaron@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- arch/x86/include/asm/jump_label.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/jump_label.h b/arch/x86/include/asm/jump_label.h index f217cee..a32b18c 100644 --- a/arch/x86/include/asm/jump_label.h +++ b/arch/x86/include/asm/jump_label.h @@ -16,6 +16,7 @@ static __always_inline bool arch_static_branch(struct jump_label_key *key) asm goto("1:" JUMP_LABEL_INITIAL_NOP ".pushsection __jump_table, \"aw\" \n\t" + _ASM_ALIGN "\n\t" _ASM_PTR "1b, %l[l_yes], %c0 \n\t" ".popsection \n\t" : : "i" (key) : : l_yes); -- 1.7.2.3
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