The patch titled
signals: add set_restore_sigmask
has been removed from the -mm tree. Its filename was
signals-add-set_restore_sigmask.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: signals: add set_restore_sigmask
From: Roland McGrath <roland@xxxxxxxxxx>
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@xxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/compat.c | 6 +++---
fs/eventpoll.c | 3 +--
fs/select.c | 4 ++--
include/linux/thread_info.h | 15 ++++++++++++++-
kernel/compat.c | 3 +--
kernel/signal.c | 2 +-
6 files changed, 22 insertions(+), 11 deletions(-)
diff -puN fs/compat.c~signals-add-set_restore_sigmask fs/compat.c
--- a/fs/compat.c~signals-add-set_restore_sigmask
+++ a/fs/compat.c
@@ -1720,7 +1720,7 @@ sticky:
if (sigmask) {
memcpy(¤t->saved_sigmask, &sigsaved,
sizeof(sigsaved));
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
}
} else if (sigmask)
sigprocmask(SIG_SETMASK, &sigsaved, NULL);
@@ -1791,7 +1791,7 @@ asmlinkage long compat_sys_ppoll(struct
if (sigmask) {
memcpy(¤t->saved_sigmask, &sigsaved,
sizeof(sigsaved));
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
}
ret = -ERESTARTNOHAND;
} else if (sigmask)
@@ -2117,7 +2117,7 @@ asmlinkage long compat_sys_epoll_pwait(i
if (err == -EINTR) {
memcpy(¤t->saved_sigmask, &sigsaved,
sizeof(sigsaved));
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
} else
sigprocmask(SIG_SETMASK, &sigsaved, NULL);
}
diff -puN fs/eventpoll.c~signals-add-set_restore_sigmask fs/eventpoll.c
--- a/fs/eventpoll.c~signals-add-set_restore_sigmask
+++ a/fs/eventpoll.c
@@ -1279,7 +1279,7 @@ asmlinkage long sys_epoll_pwait(int epfd
if (error == -EINTR) {
memcpy(¤t->saved_sigmask, &sigsaved,
sizeof(sigsaved));
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
} else
sigprocmask(SIG_SETMASK, &sigsaved, NULL);
}
@@ -1309,4 +1309,3 @@ static int __init eventpoll_init(void)
return 0;
}
fs_initcall(eventpoll_init);
-
diff -puN fs/select.c~signals-add-set_restore_sigmask fs/select.c
--- a/fs/select.c~signals-add-set_restore_sigmask
+++ a/fs/select.c
@@ -498,7 +498,7 @@ sticky:
if (sigmask) {
memcpy(¤t->saved_sigmask, &sigsaved,
sizeof(sigsaved));
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
}
} else if (sigmask)
sigprocmask(SIG_SETMASK, &sigsaved, NULL);
@@ -805,7 +805,7 @@ asmlinkage long sys_ppoll(struct pollfd
if (sigmask) {
memcpy(¤t->saved_sigmask, &sigsaved,
sizeof(sigsaved));
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
}
ret = -ERESTARTNOHAND;
} else if (sigmask)
diff -puN include/linux/thread_info.h~signals-add-set_restore_sigmask include/linux/thread_info.h
--- a/include/linux/thread_info.h~signals-add-set_restore_sigmask
+++ a/include/linux/thread_info.h
@@ -92,6 +92,19 @@ static inline int test_ti_thread_flag(st
#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 */
diff -puN kernel/compat.c~signals-add-set_restore_sigmask kernel/compat.c
--- a/kernel/compat.c~signals-add-set_restore_sigmask
+++ a/kernel/compat.c
@@ -898,7 +898,7 @@ asmlinkage long compat_sys_rt_sigsuspend
current->state = TASK_INTERRUPTIBLE;
schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
return -ERESTARTNOHAND;
}
#endif /* __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND */
@@ -1080,4 +1080,3 @@ compat_sys_sysinfo(struct compat_sysinfo
return 0;
}
-
diff -puN kernel/signal.c~signals-add-set_restore_sigmask kernel/signal.c
--- a/kernel/signal.c~signals-add-set_restore_sigmask
+++ a/kernel/signal.c
@@ -2541,7 +2541,7 @@ asmlinkage long sys_rt_sigsuspend(sigset
current->state = TASK_INTERRUPTIBLE;
schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
return -ERESTARTNOHAND;
}
#endif /* __ARCH_WANT_SYS_RT_SIGSUSPEND */
_
Patches currently in -mm which might be from roland@xxxxxxxxxx are
origin.patch
posix-timers-bug-10460-discard-the-pending-signal-when-the-timer-is-destroyed.patch
put_pid-make-sure-we-dont-free-the-live-pid.patch
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