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Diffstat (limited to 'arch/x86/entry/common.c')
-rw-r--r--arch/x86/entry/common.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 18d8f17f755c..0904f5676e4d 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -73,10 +73,8 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs,
unsigned int nr)
{
if (likely(nr < IA32_NR_syscalls)) {
- instrumentation_begin();
nr = array_index_nospec(nr, IA32_NR_syscalls);
regs->ax = ia32_sys_call_table[nr](regs);
- instrumentation_end();
}
}
@@ -91,8 +89,11 @@ __visible noinstr void do_int80_syscall_32(struct pt_regs *regs)
* or may not be necessary, but it matches the old asm behavior.
*/
nr = (unsigned int)syscall_enter_from_user_mode(regs, nr);
+ instrumentation_begin();
do_syscall_32_irqs_on(regs, nr);
+
+ instrumentation_end();
syscall_exit_to_user_mode(regs);
}
@@ -121,11 +122,12 @@ static noinstr bool __do_fast_syscall_32(struct pt_regs *regs)
res = get_user(*(u32 *)&regs->bp,
(u32 __user __force *)(unsigned long)(u32)regs->sp);
}
- instrumentation_end();
if (res) {
/* User code screwed up. */
regs->ax = -EFAULT;
+
+ instrumentation_end();
syscall_exit_to_user_mode(regs);
return false;
}
@@ -135,6 +137,8 @@ static noinstr bool __do_fast_syscall_32(struct pt_regs *regs)
/* Now this is just like a normal syscall. */
do_syscall_32_irqs_on(regs, nr);
+
+ instrumentation_end();
syscall_exit_to_user_mode(regs);
return true;
}