The patch titled
aio: make good_sigevent non-static
has been removed from the -mm tree. Its filename was
make-good_sigevent-non-static.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
Subject: aio: make good_sigevent non-static
From: Sbastien Dugu <sebastien.dugue@xxxxxxxx>
Move good_sigevent() from posix-timers.c to signal.c where it belongs, and
make it non-static so that it can be used by other subsystems.
Signed-off-by: Sébastien Dugué <sebastien.dugue@xxxxxxxx>
Cc: Zach Brown <zach.brown@xxxxxxxxxx>
Cc: Suparna Bhattacharya <suparna@xxxxxxxxxx>
Cc: Benjamin LaHaise <bcrl@xxxxxxxxx>
Cc: Ulrich Drepper <drepper@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/signal.h | 4 +++-
kernel/posix-timers.c | 17 -----------------
kernel/signal.c | 24 ++++++++++++++++++++++++
3 files changed, 27 insertions(+), 18 deletions(-)
diff -puN include/linux/signal.h~make-good_sigevent-non-static include/linux/signal.h
--- a/include/linux/signal.h~make-good_sigevent-non-static
+++ a/include/linux/signal.h
@@ -239,7 +239,9 @@ extern long do_sigpending(void __user *,
extern int sigprocmask(int, sigset_t *, sigset_t *);
struct pt_regs;
-extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
+extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka,
+ struct pt_regs *regs, void *cookie);
+extern struct task_struct *good_sigevent(sigevent_t *event);
extern struct kmem_cache *sighand_cachep;
diff -puN kernel/posix-timers.c~make-good_sigevent-non-static kernel/posix-timers.c
--- a/kernel/posix-timers.c~make-good_sigevent-non-static
+++ a/kernel/posix-timers.c
@@ -367,23 +367,6 @@ static enum hrtimer_restart posix_timer_
return ret;
}
-static struct task_struct * good_sigevent(sigevent_t * event)
-{
- struct task_struct *rtn = current->group_leader;
-
- if ((event->sigev_notify & SIGEV_THREAD_ID ) &&
- (!(rtn = find_task_by_pid(event->sigev_notify_thread_id)) ||
- rtn->tgid != current->tgid ||
- (event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_SIGNAL))
- return NULL;
-
- if (((event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_NONE) &&
- ((event->sigev_signo <= 0) || (event->sigev_signo > SIGRTMAX)))
- return NULL;
-
- return rtn;
-}
-
void register_posix_clock(const clockid_t clock_id, struct k_clock *new_clock)
{
if ((unsigned) clock_id >= MAX_CLOCKS) {
diff -puN kernel/signal.c~make-good_sigevent-non-static kernel/signal.c
--- a/kernel/signal.c~make-good_sigevent-non-static
+++ a/kernel/signal.c
@@ -1089,6 +1089,30 @@ int group_send_sig_info(int sig, struct
return ret;
}
+/***
+ * good_sigevent - check and get target task from a sigevent.
+ * @event: the sigevent to be checked
+ *
+ * This function must be called with the tasklist_lock held for reading.
+ */
+struct task_struct *good_sigevent(sigevent_t *event)
+{
+ struct task_struct *task = current->group_leader;
+
+ if ((event->sigev_notify & SIGEV_THREAD_ID) == SIGEV_THREAD_ID) {
+ task = find_task_by_pid(event->sigev_notify_thread_id);
+
+ if (!task || task->tgid != current->tgid)
+ return NULL;
+ } else if (event->sigev_notify == SIGEV_SIGNAL) {
+ if (event->sigev_signo <= 0 || event->sigev_signo > SIGRTMAX)
+ return NULL;
+ } else
+ return NULL;
+
+ return task;
+}
+
/*
* kill_pgrp_info() sends a signal to a process group: this is what the tty
* control characters do (^C, ^Z etc)
_
Patches currently in -mm which might be from sebastien.dugue@xxxxxxxx are
make-good_sigevent-non-static.patch
aio-completion-signal-notification.patch
aio-completion-signal-notification-fix.patch
add-listio-syscall-support.patch
add-listio-syscall-support-fix.patch
add-listio-syscall-support-fix-2.patch
-
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