summaryrefslogtreecommitdiffstats
path: root/arch/x86_64/mm/fault.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86_64/mm/fault.c')
-rw-r--r--arch/x86_64/mm/fault.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 57d3ab1..2f18798 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -74,7 +74,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
instr = (unsigned char *)convert_rip_to_linear(current, regs);
max_instr = instr + 15;
- if ((regs->cs & 3) != 0 && instr >= (unsigned char *)TASK_SIZE)
+ if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
return 0;
while (scan_more && instr < max_instr) {
@@ -106,7 +106,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
/* Could check the LDT for lm, but for now it's good
enough to assume that long mode only uses well known
segments or kernel. */
- scan_more = ((regs->cs & 3) == 0) || (regs->cs == __USER_CS);
+ scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS);
break;
case 0x60:
OpenPOWER on IntegriCloud