The patch titled
Subject: kernel/signal.c: move print_dropped_signal
has been added to the -mm tree. Its filename is
signal-move-print_dropped_signal.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/signal-move-print_dropped_signal.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/signal-move-print_dropped_signal.patch
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------------------------------------------------------
From: Tom Rix <trix@xxxxxxxxxx>
Subject: kernel/signal.c: move print_dropped_signal
If the allocation of 'q' fails, the signal will be dropped. To ensure
that this is reported, move print_dropped_signal to be inside the '(q ==
NULL)' if-check.
Link: http://lkml.kernel.org/r/20191203180221.7038-1-trix@xxxxxxxxxx
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Christian Brauner <christian.brauner@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Cc: Deepa Dinamani <deepa.kernel@xxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/signal.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/kernel/signal.c~signal-move-print_dropped_signal
+++ a/kernel/signal.c
@@ -427,11 +427,10 @@ __sigqueue_alloc(int sig, struct task_st
atomic_read(&user->sigpending) <=
task_rlimit(t, RLIMIT_SIGPENDING)) {
q = kmem_cache_alloc(sigqueue_cachep, flags);
- } else {
- print_dropped_signal(sig);
}
if (unlikely(q == NULL)) {
+ print_dropped_signal(sig);
atomic_dec(&user->sigpending);
free_uid(user);
} else {
_
Patches currently in -mm which might be from trix@xxxxxxxxxx are
signal-move-print_dropped_signal.patch
