alternative.c can use the text edit lock to remove CPU HOTPLUG special cases. Also used by x86_64. Signed-off-by: Mathieu Desnoyers --- arch/i386/kernel/alternative.c | 10 ++++++++++ 1 file changed, 10 insertions(+) Index: linux-2.6-lttng/arch/i386/kernel/alternative.c =================================================================== --- linux-2.6-lttng.orig/arch/i386/kernel/alternative.c 2007-07-13 16:08:14.000000000 -0400 +++ linux-2.6-lttng/arch/i386/kernel/alternative.c 2007-07-13 16:39:26.000000000 -0400 @@ -2,8 +2,10 @@ #include #include #include +#include #include #include +#include #ifdef CONFIG_HOTPLUG_CPU static int smp_alt_once; @@ -185,9 +187,13 @@ __FUNCTION__, a->instr, instr); } #endif + kernel_text_lock(); + kernel_text_mark_rw((unsigned long)instr, a->instrlen); memcpy(instr, a->replacement, a->replacementlen); diff = a->instrlen - a->replacementlen; nop_out(instr + a->replacementlen, diff); + kernel_text_unmark((unsigned long)instr, a->instrlen); + kernel_text_unlock(); } } @@ -352,6 +358,8 @@ for (p = start; p < end; p++) { unsigned int used; + kernel_text_lock(); + kernel_text_mark_rw((unsigned long)p->instr, p->len); used = paravirt_ops.patch(p->instrtype, p->clobbers, p->instr, p->len); @@ -359,6 +367,8 @@ /* Pad the rest with nops */ nop_out(p->instr + used, p->len - used); + kernel_text_unmark((unsigned long)p->instr, p->len); + kernel_text_unlock(); } /* Sync to be conservative, in case we patched following -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/