diff options
Diffstat (limited to 'include/linux/thread_info.h')
| -rw-r--r-- | include/linux/thread_info.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 43d8162c696e..81c5f82f0663 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -97,11 +97,17 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag) * set_restore_sigmask() - make sure saved_sigmask processing gets done * * This sets TIF_RESTORE_SIGMASK and ensures that the arch signal code - * will run before returning to user mode, to process the flag. + * will run before returning to user mode, to process the flag. For + * all callers, TIF_SIGPENDING is already set or it's no harm to set + * it. TIF_RESTORE_SIGMASK need not be in the set of bits that the + * arch code will notice on return to user mode, in case those bits + * are scarce. We set TIF_SIGPENDING here to ensure that the arch + * signal code always gets run when TIF_RESTORE_SIGMASK is set. */ static inline void set_restore_sigmask(void) { set_thread_flag(TIF_RESTORE_SIGMASK); + set_thread_flag(TIF_SIGPENDING); } #endif /* TIF_RESTORE_SIGMASK */ |