diff options
| author | Sukadev Bhattiprolu | 2009-01-06 23:42:46 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2009-01-07 00:59:29 +0100 |
| commit | 9cd4fd10437dda6b520cb1410b28f36967a34de8 (patch) | |
| tree | 1a1d5eaa0d650c1efe0e63dbadb9674cac209d9d /kernel/fork.c | |
| parent | SEND_SIG_NOINFO: masquerade si_pid when crossing pid-ns boundary (diff) | |
| download | kernel-qcow2-linux-9cd4fd10437dda6b520cb1410b28f36967a34de8.tar.gz kernel-qcow2-linux-9cd4fd10437dda6b520cb1410b28f36967a34de8.tar.xz kernel-qcow2-linux-9cd4fd10437dda6b520cb1410b28f36967a34de8.zip | |
SEND_SIG_NOINFO: set si_pid to tgid instead of pid
POSIX requires the si_pid to be the process id of the sender, so ->si_pid
should really be set to 'tgid'. This change does have following changes
in behavior:
- When sending pdeath_signal on re-parent to a sub-thread, ->si_pid
cannot be used to identify the thread that did the re-parent since
it will now show the tgid instead of thread id.
- A multi-threaded application that expects to find the specific
thread that encountered a SIGPIPE using the ->si_pid will now
break.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-By: Roland McGrath <roland@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
0 files changed, 0 insertions, 0 deletions