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| author | Cedric Le Goater <clg@fr.ibm.com> | 2006-12-08 02:37:54 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 08:28:51 -0800 |
| commit | 937949d9edbf4049bd41af6c9f92c26280584564 (patch) | |
| tree | d0a28f503b082f890cfa1f7fe952fda8fc771752 /kernel/sys.c | |
| parent | ef55d53caa055aedee13e77da82740987dd64f2d (diff) | |
| download | lwn-937949d9edbf4049bd41af6c9f92c26280584564.tar.gz lwn-937949d9edbf4049bd41af6c9f92c26280584564.zip | |
[PATCH] add process_session() helper routine
Replace occurences of task->signal->session by a new process_session() helper
routine.
It will be useful for pid namespaces to abstract the session pid number.
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 1ac2d1c5d84e..4f9d23a3095f 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1381,7 +1381,7 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) if (p->real_parent == group_leader) { err = -EPERM; - if (p->signal->session != group_leader->signal->session) + if (process_session(p) != process_session(group_leader)) goto out; err = -EACCES; if (p->did_exec) @@ -1400,7 +1400,7 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) struct task_struct *p; do_each_task_pid(pgid, PIDTYPE_PGID, p) { - if (p->signal->session == group_leader->signal->session) + if (process_session(p) == process_session(group_leader)) goto ok_pgid; } while_each_task_pid(pgid, PIDTYPE_PGID, p); goto out; @@ -1459,7 +1459,7 @@ asmlinkage long sys_getpgrp(void) asmlinkage long sys_getsid(pid_t pid) { if (!pid) - return current->signal->session; + return process_session(current); else { int retval; struct task_struct *p; @@ -1471,7 +1471,7 @@ asmlinkage long sys_getsid(pid_t pid) if (p) { retval = security_task_getsid(p); if (!retval) - retval = p->signal->session; + retval = process_session(p); } read_unlock(&tasklist_lock); return retval; |