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authorRoland McGrath <roland@redhat.com>2008-04-30 00:53:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:37 -0700
commit4e4c22c71144c1b2e22c257ec6cf08ccb5be1165 (patch)
tree0a41fb405ab60654f70ead9698d5ce414a066c37 /include/linux/thread_info.h
parent80fe728d593e3a048a56610de932919f7d6d968a (diff)
signals: add set_restore_sigmask
This adds the set_restore_sigmask() inline in <linux/thread_info.h> and replaces every set_thread_flag(TIF_RESTORE_SIGMASK) with a call to it. No change, but abstracts the details of the flag protocol from all the calls. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/thread_info.h')
-rw-r--r--include/linux/thread_info.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index accd7bad35b..43d8162c696 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -92,6 +92,19 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
#define set_need_resched() set_thread_flag(TIF_NEED_RESCHED)
#define clear_need_resched() clear_thread_flag(TIF_NEED_RESCHED)
-#endif
+#ifdef TIF_RESTORE_SIGMASK
+/**
+ * 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.
+ */
+static inline void set_restore_sigmask(void)
+{
+ set_thread_flag(TIF_RESTORE_SIGMASK);
+}
+#endif /* TIF_RESTORE_SIGMASK */
+
+#endif /* __KERNEL__ */
#endif /* _LINUX_THREAD_INFO_H */