The patch titled
signals: use HAVE_SET_RESTORE_SIGMASK
has been removed from the -mm tree. Its filename was
signals-use-have_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: use HAVE_SET_RESTORE_SIGMASK
From: Roland McGrath <roland@xxxxxxxxxx>
Change all the #ifdef TIF_RESTORE_SIGMASK conditionals in non-arch code to
#ifdef HAVE_SET_RESTORE_SIGMASK. If arch code defines it first, the generic
set_restore_sigmask() using TIF_RESTORE_SIGMASK is not defined.
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 | 8 ++++----
fs/eventpoll.c | 4 ++--
fs/select.c | 8 ++++----
include/linux/sched.h | 2 +-
include/linux/thread_info.h | 10 ++++++++--
5 files changed, 19 insertions(+), 13 deletions(-)
diff -puN fs/compat.c~signals-use-have_set_restore_sigmask fs/compat.c
--- a/fs/compat.c~signals-use-have_set_restore_sigmask
+++ a/fs/compat.c
@@ -1634,7 +1634,7 @@ sticky:
return ret;
}
-#ifdef TIF_RESTORE_SIGMASK
+#ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long compat_sys_pselect7(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,
struct compat_timespec __user *tsp, compat_sigset_t __user *sigmask,
@@ -1825,7 +1825,7 @@ sticky:
return ret;
}
-#endif /* TIF_RESTORE_SIGMASK */
+#endif /* HAVE_SET_RESTORE_SIGMASK */
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
/* Stuff for NFS server syscalls... */
@@ -2080,7 +2080,7 @@ long asmlinkage compat_sys_nfsservctl(in
#ifdef CONFIG_EPOLL
-#ifdef TIF_RESTORE_SIGMASK
+#ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long compat_sys_epoll_pwait(int epfd,
struct compat_epoll_event __user *events,
int maxevents, int timeout,
@@ -2124,7 +2124,7 @@ asmlinkage long compat_sys_epoll_pwait(i
return err;
}
-#endif /* TIF_RESTORE_SIGMASK */
+#endif /* HAVE_SET_RESTORE_SIGMASK */
#endif /* CONFIG_EPOLL */
diff -puN fs/eventpoll.c~signals-use-have_set_restore_sigmask fs/eventpoll.c
--- a/fs/eventpoll.c~signals-use-have_set_restore_sigmask
+++ a/fs/eventpoll.c
@@ -1241,7 +1241,7 @@ error_return:
return error;
}
-#ifdef TIF_RESTORE_SIGMASK
+#ifdef HAVE_SET_RESTORE_SIGMASK
/*
* Implement the event wait interface for the eventpoll file. It is the kernel
@@ -1287,7 +1287,7 @@ asmlinkage long sys_epoll_pwait(int epfd
return error;
}
-#endif /* #ifdef TIF_RESTORE_SIGMASK */
+#endif /* HAVE_SET_RESTORE_SIGMASK */
static int __init eventpoll_init(void)
{
diff -puN fs/select.c~signals-use-have_set_restore_sigmask fs/select.c
--- a/fs/select.c~signals-use-have_set_restore_sigmask
+++ a/fs/select.c
@@ -425,7 +425,7 @@ sticky:
return ret;
}
-#ifdef TIF_RESTORE_SIGMASK
+#ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long sys_pselect7(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, struct timespec __user *tsp,
const sigset_t __user *sigmask, size_t sigsetsize)
@@ -528,7 +528,7 @@ asmlinkage long sys_pselect6(int n, fd_s
return sys_pselect7(n, inp, outp, exp, tsp, up, sigsetsize);
}
-#endif /* TIF_RESTORE_SIGMASK */
+#endif /* HAVE_SET_RESTORE_SIGMASK */
struct poll_list {
struct poll_list *next;
@@ -759,7 +759,7 @@ asmlinkage long sys_poll(struct pollfd _
return ret;
}
-#ifdef TIF_RESTORE_SIGMASK
+#ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long sys_ppoll(struct pollfd __user *ufds, unsigned int nfds,
struct timespec __user *tsp, const sigset_t __user *sigmask,
size_t sigsetsize)
@@ -839,4 +839,4 @@ asmlinkage long sys_ppoll(struct pollfd
return ret;
}
-#endif /* TIF_RESTORE_SIGMASK */
+#endif /* HAVE_SET_RESTORE_SIGMASK */
diff -puN include/linux/sched.h~signals-use-have_set_restore_sigmask include/linux/sched.h
--- a/include/linux/sched.h~signals-use-have_set_restore_sigmask
+++ a/include/linux/sched.h
@@ -1175,7 +1175,7 @@ struct task_struct {
struct sighand_struct *sighand;
sigset_t blocked, real_blocked;
- sigset_t saved_sigmask; /* To be restored with TIF_RESTORE_SIGMASK */
+ sigset_t saved_sigmask; /* restored if set_restore_sigmask() was used */
struct sigpending pending;
unsigned long sas_ss_sp;
diff -puN include/linux/thread_info.h~signals-use-have_set_restore_sigmask include/linux/thread_info.h
--- a/include/linux/thread_info.h~signals-use-have_set_restore_sigmask
+++ a/include/linux/thread_info.h
@@ -92,7 +92,13 @@ 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)
-#ifdef TIF_RESTORE_SIGMASK
+#if defined TIF_RESTORE_SIGMASK && !defined HAVE_SET_RESTORE_SIGMASK
+/*
+ * An arch can define its own version of set_restore_sigmask() to get the
+ * job done however works, with or without TIF_RESTORE_SIGMASK.
+ */
+#define HAVE_SET_RESTORE_SIGMASK 1
+
/**
* set_restore_sigmask() - make sure saved_sigmask processing gets done
*
@@ -109,7 +115,7 @@ static inline void set_restore_sigmask(v
set_thread_flag(TIF_RESTORE_SIGMASK);
set_thread_flag(TIF_SIGPENDING);
}
-#endif /* TIF_RESTORE_SIGMASK */
+#endif /* TIF_RESTORE_SIGMASK && !HAVE_SET_RESTORE_SIGMASK */
#endif /* __KERNEL__ */
_
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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