X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=arch%2Fx86%2Fum%2Fptrace_64.c;h=e30202b1716efb4243372d02e61f5f8269203419;hb=b6ffb11e4e5b6d1ae61c26c90255877fa4749eca;hp=0b5c184dd5b3b80894c3db60ead6432ad20dca57;hpb=d880e5ad0df3c2e1d69bb356737a46abb5087d42;p=cascardo%2Flinux.git

diff --git a/arch/x86/um/ptrace_64.c b/arch/x86/um/ptrace_64.c
index 0b5c184dd5b3..e30202b1716e 100644
--- a/arch/x86/um/ptrace_64.c
+++ b/arch/x86/um/ptrace_64.c
@@ -212,7 +212,8 @@ int is_syscall(unsigned long addr)
 		 * slow, but that doesn't matter, since it will be called only
 		 * in case of singlestepping, if copy_from_user failed.
 		 */
-		n = access_process_vm(current, addr, &instr, sizeof(instr), 0);
+		n = access_process_vm(current, addr, &instr, sizeof(instr),
+				FOLL_FORCE);
 		if (n != sizeof(instr)) {
 			printk("is_syscall : failed to read instruction from "
 			       "0x%lx\n", addr);