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-rw-r--r--arch/powerpc/kernel/vdso.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 7d14bb697d40..d36ee1055f88 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -263,17 +263,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
263 * the "data" page of the vDSO or you'll stop getting kernel updates 263 * the "data" page of the vDSO or you'll stop getting kernel updates
264 * and your nice userland gettimeofday will be totally dead. 264 * and your nice userland gettimeofday will be totally dead.
265 * It's fine to use that for setting breakpoints in the vDSO code 265 * It's fine to use that for setting breakpoints in the vDSO code
266 * pages though 266 * pages though.
267 *
268 * Make sure the vDSO gets into every core dump.
269 * Dumping its contents makes post-mortem fully interpretable later
270 * without matching up the same kernel and hardware config to see
271 * what PC values meant.
272 */ 267 */
273 rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT, 268 rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
274 VM_READ|VM_EXEC| 269 VM_READ|VM_EXEC|
275 VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| 270 VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
276 VM_ALWAYSDUMP,
277 vdso_pagelist); 271 vdso_pagelist);
278 if (rc) { 272 if (rc) {
279 current->mm->context.vdso_base = 0; 273 current->mm->context.vdso_base = 0;