The patch titled
signals: fold complete_signal() into send_signal/do_send_sigqueue
has been added to the -mm tree. Its filename is
signals-fold-complete_signal-into-send_signal-do_send_sigqueue.patch
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*** 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: fold complete_signal() into send_signal/do_send_sigqueue
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
Factor out complete_signal() callsites. This change completely unifies the
helpers sending the specific/group signals.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Roland McGrath <roland@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/signal.c | 46 +++++++++++-----------------------------------
1 file changed, 11 insertions(+), 35 deletions(-)
diff -puN kernel/signal.c~signals-fold-complete_signal-into-send_signal-do_send_sigqueue kernel/signal.c
--- a/kernel/signal.c~signals-fold-complete_signal-into-send_signal-do_send_sigqueue
+++ a/kernel/signal.c
@@ -826,7 +826,8 @@ static int send_signal(int sig, struct s
out_set:
sigaddset(&pending->signal, sig);
- return 1;
+ complete_signal(sig, t, group);
+ return 0;
}
int print_fatal_signals;
@@ -861,17 +862,16 @@ static int __init setup_print_fatal_sign
__setup("print-fatal-signals=", setup_print_fatal_signals);
+int
+__group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
+{
+ return send_signal(sig, info, p, 1);
+}
+
static int
specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
{
- int ret;
-
- ret = send_signal(sig, info, t, 0);
- if (ret <= 0)
- return ret;
-
- complete_signal(sig, t, 0);
- return 0;
+ return send_signal(sig, info, t, 0);
}
/*
@@ -914,24 +914,6 @@ force_sig_specific(int sig, struct task_
force_sig_info(sig, SEND_SIG_FORCED, t);
}
-int
-__group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
-{
- int ret;
-
- /*
- * Put this signal on the shared-pending queue, or fail with EAGAIN.
- * We always use the shared queue for process-wide signals,
- * to avoid several races.
- */
- ret = send_signal(sig, info, p, 1);
- if (ret <= 0)
- return ret;
-
- complete_signal(sig, p, 1);
- return 0;
-}
-
/*
* Nuke all other threads in the group.
*/
@@ -1263,6 +1245,7 @@ static int do_send_sigqueue(int sig, str
{
struct sigpending *pending;
+ BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
handle_stop_signal(sig, t);
if (unlikely(!list_empty(&q->list))) {
@@ -1283,6 +1266,7 @@ static int do_send_sigqueue(int sig, str
pending = group ? &t->signal->shared_pending : &t->pending;
list_add_tail(&q->list, &pending->list);
sigaddset(&pending->signal, sig);
+ complete_signal(sig, t, group);
return 0;
}
@@ -1292,8 +1276,6 @@ int send_sigqueue(int sig, struct sigque
unsigned long flags;
int ret = -1;
- BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
-
/*
* The rcu based delayed sighand destroy makes it possible to
* run this without tasklist lock held. The task struct itself
@@ -1307,8 +1289,6 @@ int send_sigqueue(int sig, struct sigque
ret = do_send_sigqueue(sig, q, p, 0);
- complete_signal(sig, p, 0);
-
unlock_task_sighand(p, &flags);
out_err:
return ret;
@@ -1320,15 +1300,11 @@ send_group_sigqueue(int sig, struct sigq
unsigned long flags;
int ret;
- BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
-
/* Since it_lock is held, p->sighand cannot be NULL. */
spin_lock_irqsave(&p->sighand->siglock, flags);
ret = do_send_sigqueue(sig, q, p, 1);
- complete_signal(sig, p, 1);
-
spin_unlock_irqrestore(&p->sighand->siglock, flags);
return ret;
_
Patches currently in -mm which might be from xemul@xxxxxxxxxx are
git-kgdb-light.patch
use-find_task_by_vpid-in-audit-code.patch
ia64-fix-getpid-and-set_tid_address-fast-system-calls-for-pid-namespaces.patch
git-udf.patch
cgroup-api-files-rename-read-write_uint-methods-to-read_write_u64.patch
cgroup-api-files-add-res_counter_read_u64.patch
cgroup-api-files-use-read_u64-in-memory-controller.patch
cgroup-api-files-strip-all-trailing-whitespace-in-cgroup_write_u64.patch
cgroup-api-files-update-cpusets-to-use-cgroup-structured-file-api.patch
cgroup-api-files-update-cpusets-to-use-cgroup-structured-file-api-fix.patch
cgroup-api-files-add-cgroup-map-data-type.patch
cgroup-api-files-use-cgroup-map-for-memcontrol-stats-file.patch
cgroup-api-files-drop-mem_cgroup_force_empty.patch
cgroup-api-files-move-releasable-to-cgroup_debug-subsystem.patch
cgroup-api-files-make-cgroup_debug-default-to-off.patch
cgroups-add-cgroup-support-for-enabling-controllers-at-boot-time.patch
memory-controller-make-memory-resource-control-aware-of-boot-options.patch
devscontrol-avoid-magic-constants-in-drivers-base-mapc.patch
devscontrol-clean-up-get_gendisk-a-bit.patch
devscontrol-add-a-mode-on-the-struct-probe.patch
devscontrol-make-kobj_lookup-return-the-mappings-permissions.patch
devscontrol-make-use-of-permissions-returned-by-kobj_lookup.patch
devscontrol-extend-the-drivers-base-mapc-functionality.patch
devscontrol-provide-functions-to-manipulate-char-device-mappings.patch
devscontrol-provide-functions-to-manipulate-block-device-mappings.patch
devscontrol-devices-accessibility-control-group-itself.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-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-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
sysctl-merge-equal-proc_sys_read-and-proc_sys_write.patch
sysctl-clean-from-unneeded-extern-and-forward-declarations.patch
sysctl-add-the-permissions-callback-on-the-ctl_table_root.patch
free_pidmap-turn-it-into-free_pidmapstruct-upid.patch
use-find_task_by_vpid-in-taskstats.patch
deprecate-find_task_by_pid.patch
deprecate-find_task_by_pid-warning-fix.patch
pidns-make-pid-level-and-pid_ns-level-unsigned.patch
reiser4.patch
put_pid-make-sure-we-dont-free-the-live-pid.patch
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