kernel_samsung_sm7125

jenna

History

Sukadev Bhattiprolu a6684999f7 mqueue: fix si_pid value in mqueue do_notify() If a process registers for asynchronous notification on a POSIX message queue, it gets a signal and a siginfo_t structure when a message arrives on the message queue. The si_pid in the siginfo_t structure is set to the PID of the process that sent the message to the message queue. The principle is the following: . when mq_notify(SIGEV_SIGNAL) is called, the caller registers for notification when a msg arrives. The associated pid structure is stroed into inode_info->notify_owner. Let's call this process P1. . when mq_send() is called by say P2, P2 sends a signal to P1 to notify him about msg arrival. The way .si_pid is set today is not correct, since it doesn't take into account the fact that the process that is sending the message might not be in the same namespace as the notified one. This patch proposes to set si_pid to the sender's pid into the notify_owner namespace. Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Bastian Blank <bastian@waldi.eu.org> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
..
Makefile	…
compat.c	…
compat_mq.c	…
ipc_sysctl.c	ipc/ipc_sysctl.c: move the definition of ipc_auto_callback()	16 years ago
ipcns_notifier.c	ipc: do not use a negative value to re-enable msgmni automatic recomputing	17 years ago
mqueue.c	mqueue: fix si_pid value in mqueue do_notify()	16 years ago
msg.c	…
msgutil.c	…
namespace.c	…
sem.c	ipc: do not goto to the next line	16 years ago
shm.c	ipc: clean up ipc/shm.c	16 years ago
util.c	sanitize audit_ipc_set_perm()	16 years ago
util.h	ipc: get rid of ipc_lock_down()	17 years ago