diff options
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 02b5a12dfd59..9c6da1d16d9a 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -290,7 +290,7 @@ asmlinkage long sys_setpriority(int which, int who, int niceval) break; case PRIO_PGRP: if (!who) - who = current->pgrp; + who = process_group(current); for_each_task_pid(who, PIDTYPE_PGID, p, l, pid) error = set_one_prio(p, niceval, error); break; @@ -346,7 +346,7 @@ asmlinkage long sys_getpriority(int which, int who) break; case PRIO_PGRP: if (!who) - who = current->pgrp; + who = process_group(current); for_each_task_pid(who, PIDTYPE_PGID, p, l, pid) { niceval = 20 - task_nice(p); if (niceval > retval) @@ -979,11 +979,12 @@ ok_pgid: if (err) goto out; - if (p->pgrp != pgid) { + if (process_group(p) != pgid) { detach_pid(p, PIDTYPE_PGID); - p->pgrp = pgid; + p->group_leader->__pgrp = pgid; attach_pid(p, PIDTYPE_PGID, pgid); } + err = 0; out: /* All paths lead to here, thus we are safe. -DaveM */ @@ -994,7 +995,7 @@ out: asmlinkage long sys_getpgid(pid_t pid) { if (!pid) { - return current->pgrp; + return process_group(current); } else { int retval; struct task_struct *p; @@ -1006,7 +1007,7 @@ asmlinkage long sys_getpgid(pid_t pid) if (p) { retval = security_task_getpgid(p); if (!retval) - retval = p->pgrp; + retval = process_group(p); } read_unlock(&tasklist_lock); return retval; @@ -1016,7 +1017,7 @@ asmlinkage long sys_getpgid(pid_t pid) asmlinkage long sys_getpgrp(void) { /* SMP - assuming writes are word atomic this is fine */ - return current->pgrp; + return process_group(current); } asmlinkage long sys_getsid(pid_t pid) @@ -1059,7 +1060,7 @@ asmlinkage long sys_setsid(void) __set_special_pids(current->pid, current->pid); current->tty = NULL; current->tty_old_pgrp = 0; - err = current->pgrp; + err = process_group(current); out: write_unlock_irq(&tasklist_lock); return err; |