diff options
Diffstat (limited to 'kernel/entry/common.c')
| -rw-r--r-- | kernel/entry/common.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 88cb3c88aaa5..e33691d5adf7 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -57,8 +57,14 @@ long syscall_trace_enter(struct pt_regs *regs, long syscall, /* Either of the above might have changed the syscall number */ syscall = syscall_get_nr(current, regs); - if (unlikely(work & SYSCALL_WORK_SYSCALL_TRACEPOINT)) + if (unlikely(work & SYSCALL_WORK_SYSCALL_TRACEPOINT)) { trace_sys_enter(regs, syscall); + /* + * Probes or BPF hooks in the tracepoint may have changed the + * system call number as well. + */ + syscall = syscall_get_nr(current, regs); + } syscall_enter_audit(regs, syscall); @@ -92,7 +98,7 @@ __always_inline unsigned long exit_to_user_mode_loop(struct pt_regs *regs, local_irq_enable_exit_to_user(ti_work); - if (ti_work & _TIF_NEED_RESCHED) + if (ti_work & (_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY)) schedule(); if (ti_work & _TIF_UPROBE) @@ -176,7 +182,7 @@ static void syscall_exit_to_user_mode_prepare(struct pt_regs *regs) unsigned long work = READ_ONCE(current_thread_info()->syscall_work); unsigned long nr = syscall_get_nr(current, regs); - CT_WARN_ON(ct_state() != CONTEXT_KERNEL); + CT_WARN_ON(ct_state() != CT_STATE_KERNEL); if (IS_ENABLED(CONFIG_PROVE_LOCKING)) { if (WARN(irqs_disabled(), "syscall %lu left IRQs disabled", nr)) |