The patch titled signals: add set_restore_sigmask has been added to the -mm tree. Its filename is signals-add-set_restore_sigmask.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this 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 @@ -1276,7 +1276,7 @@ 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); } @@ -1306,4 +1306,3 @@ 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 @@ -2528,7 +2528,7 @@ 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 git-x86.patch x86-handle_vm86_trap-cleanup.patch x86_64-ia32-ptrace-vs-enosys.patch x86_64-ptrace-vs-enosys.patch x86_64-ia32-ptrace-vs-enosys-sysenter-syscall.patch git-powerpc.patch git-selinux.patch add-rusage_thread.patch remove-unused-variable-from-send_signal.patch turn-legacy_queue-macro-into-static-inline-function.patch consolidate-checking-for-ignored-legacy-signals.patch consolidate-checking-for-ignored-legacy-signals-simplify.patch signals-do_signal_stop-use-signal_group_exit.patch signals-do_group_exit-use-signal_group_exit-more-consistently.patch lock_task_sighand-add-rcu-lock-unlock.patch k_getrusage-dont-take-rcu_read_lock.patch do_task_stat-dont-take-rcu_read_lock.patch signals-consolidate-checks-for-whether-or-not-to-ignore-a-signal.patch signals-clean-dequeue_signal-from-excess-checks-and-assignments.patch signals-consolidate-send_sigqueue-and-send_group_sigqueue.patch signals-cleanup-security_task_kill-usage-implementation.patch signals-re-assign-cld_continued-notification-from-the-sender-to-reciever.patch kill_pid_info-dont-take-now-unneeded-tasklist_lock.patch handle_stop_signal-unify-partial-full-stop-handling.patch handle_stop_signal-use-the-cached-p-signal-value.patch get_signal_to_deliver-use-the-cached-signal-sighand-values.patch signals-send_sigqueue-dont-take-rcu-lock.patch signals-send_sigqueue-dont-forget-about-handle_stop_signal.patch signals-__group_complete_signal-cache-the-value-of-p-signal.patch signals-send_group_sigqueue-dont-take-tasklist_lock.patch signals-move-handle_stop_signal-into-send_signal.patch signals-do_tkill-dont-use-tasklist_lock.patch signals-do_tkill-dont-use-tasklist_lock-comment.patch signals-send_sig_info-dont-take-tasklist_lock.patch signals-microoptimize-the-usage-of-curr_target.patch signals-move-the-definition-of-__group_complete_signal-up.patch signals-change-send_signal-do_send_sigqueue-to-take-boolean-group-parameter.patch signals-use-__group_complete_signal-for-the-specific-signals-too.patch signals-fold-complete_signal-into-send_signal-do_send_sigqueue.patch signals-unify-send_sigqueue-send_group_sigqueue-completely.patch signals-join-send_sigqueue-with-send_group_sigqueue.patch signals-handle_stop_signal-dont-worry-about-sigkill.patch signals-cleanup-the-usage-of-print_fatal_signal.patch signals-fold-sig_ignored-into-handle_stop_signal.patch signals-fold-sig_ignored-into-handle_stop_signal-comment.patch signals-document-cld_continued-notification-mechanics.patch signals-document-cld_continued-notification-mechanics-more.patch signals-send_signal-be-paranoid-about-signalfd_notify.patch signals-check_kill_permission-check-session-under-tasklist_lock.patch signals-check_kill_permission-remove-tasklist_lock.patch signals-fix-sbin-init-protection-from-unwanted-signals.patch signals-de_thread-simplify-the-child_reaper-switching.patch signals-allow-the-kernel-to-actually-kill-sbin-init.patch signals-add-set_restore_sigmask.patch signals-set_restore_sigmask-tif_sigpending.patch signals-s390-renumber-tif_restore_sigmask.patch signals-ia64-renumber-tif_restore_sigmask.patch signals-use-have_set_restore_sigmask.patch signals-x86-ts_restore_sigmask.patch signals-powerpc-tlf_restore_sigmask.patch ptrace-introduce-task_detached-helper.patch reparent_thread-use-same_thread_group.patch document-de_thread-with-exit_notify-connection.patch ptrace-introduce-ptrace_reparented-helper.patch ptrace-__ptrace_unlink-use-the-ptrace_reparented-helper.patch ptrace-ptrace_attach-use-send_sig_info-instead-force_sig_specific.patch ptrace-allow-to-ptrace-sbin-init.patch procfs-mem-permission-cleanup.patch free_pidmap-turn-it-into-free_pidmapstruct-upid.patch pids-de_thread-dont-clear-session-pgrp-pids-for-the-old-leader.patch pids-introduce-change_pid-helper.patch pids-sys_setpgid-use-change_pid-helper.patch pids-__set_special_pids-use-change_pid-helper.patch pids-sys_getsid-fix-unsafe-pid-usage-fix-possible-0-instead-of-esrch.patch pids-sys_getpgid-fix-unsafe-pid-usage-s-tasklist-rcu.patch put_pid-make-sure-we-dont-free-the-live-pid.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html