diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-02-01 11:45:47 +1100 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-02-01 11:45:47 +1100 |
commit | 75659ca0c10992dcb39258518368a0f6f56e935d (patch) | |
tree | 5d014ceb2f10158061a23d0d976f9a613d85e659 /kernel/exit.c | |
parent | fbdde7bd274d74729954190f99afcb1e3d9bbfba (diff) | |
parent | 2dfe485a2c8afa54cb069fcf48476f6c90ea3fdf (diff) | |
download | op-kernel-dev-75659ca0c10992dcb39258518368a0f6f56e935d.zip op-kernel-dev-75659ca0c10992dcb39258518368a0f6f56e935d.tar.gz |
Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc
* 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: (22 commits)
Remove commented-out code copied from NFS
NFS: Switch from intr mount option to TASK_KILLABLE
Add wait_for_completion_killable
Add wait_event_killable
Add schedule_timeout_killable
Use mutex_lock_killable in vfs_readdir
Add mutex_lock_killable
Use lock_page_killable
Add lock_page_killable
Add fatal_signal_pending
Add TASK_WAKEKILL
exit: Use task_is_*
signal: Use task_is_*
sched: Use task_contributes_to_load, TASK_ALL and TASK_NORMAL
ptrace: Use task_is_*
power: Use task_is_*
wait: Use TASK_NORMAL
proc/base.c: Use task_is_*
proc/array.c: Use TASK_REPORT
perfmon: Use task_is_*
...
Fixed up conflicts in NFS/sunrpc manually..
Diffstat (limited to 'kernel/exit.c')
-rw-r--r-- | kernel/exit.c | 88 |
1 files changed, 39 insertions, 49 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 549c055..bfb1c0e 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -249,7 +249,7 @@ static int has_stopped_jobs(struct pid *pgrp) struct task_struct *p; do_each_pid_task(pgrp, PIDTYPE_PGID, p) { - if (p->state != TASK_STOPPED) + if (!task_is_stopped(p)) continue; retval = 1; break; @@ -614,7 +614,7 @@ reparent_thread(struct task_struct *p, struct task_struct *father, int traced) p->parent = p->real_parent; add_parent(p); - if (p->state == TASK_TRACED) { + if (task_is_traced(p)) { /* * If it was at a trace stop, turn it into * a normal stop since it's no longer being @@ -1563,60 +1563,51 @@ repeat: } allowed = 1; - switch (p->state) { - case TASK_TRACED: - /* - * When we hit the race with PTRACE_ATTACH, - * we will not report this child. But the - * race means it has not yet been moved to - * our ptrace_children list, so we need to - * set the flag here to avoid a spurious ECHILD - * when the race happens with the only child. - */ - flag = 1; - if (!my_ptrace_child(p)) - continue; - /*FALLTHROUGH*/ - case TASK_STOPPED: + if (task_is_stopped_or_traced(p)) { /* * It's stopped now, so it might later * continue, exit, or stop again. + * + * When we hit the race with PTRACE_ATTACH, we + * will not report this child. But the race + * means it has not yet been moved to our + * ptrace_children list, so we need to set the + * flag here to avoid a spurious ECHILD when + * the race happens with the only child. */ flag = 1; - if (!(options & WUNTRACED) && - !my_ptrace_child(p)) - continue; + + if (!my_ptrace_child(p)) { + if (task_is_traced(p)) + continue; + if (!(options & WUNTRACED)) + continue; + } + retval = wait_task_stopped(p, ret == 2, - (options & WNOWAIT), - infop, - stat_addr, ru); + (options & WNOWAIT), infop, + stat_addr, ru); if (retval == -EAGAIN) goto repeat; if (retval != 0) /* He released the lock. */ goto end; - break; - default: - // case EXIT_DEAD: - if (p->exit_state == EXIT_DEAD) + } else if (p->exit_state == EXIT_DEAD) { + continue; + } else if (p->exit_state == EXIT_ZOMBIE) { + /* + * Eligible but we cannot release it yet: + */ + if (ret == 2) + goto check_continued; + if (!likely(options & WEXITED)) continue; - // case EXIT_ZOMBIE: - if (p->exit_state == EXIT_ZOMBIE) { - /* - * Eligible but we cannot release - * it yet: - */ - if (ret == 2) - goto check_continued; - if (!likely(options & WEXITED)) - continue; - retval = wait_task_zombie( - p, (options & WNOWAIT), - infop, stat_addr, ru); - /* He released the lock. */ - if (retval != 0) - goto end; - break; - } + retval = wait_task_zombie(p, + (options & WNOWAIT), infop, + stat_addr, ru); + /* He released the lock. */ + if (retval != 0) + goto end; + } else { check_continued: /* * It's running now, so it might later @@ -1625,12 +1616,11 @@ check_continued: flag = 1; if (!unlikely(options & WCONTINUED)) continue; - retval = wait_task_continued( - p, (options & WNOWAIT), - infop, stat_addr, ru); + retval = wait_task_continued(p, + (options & WNOWAIT), infop, + stat_addr, ru); if (retval != 0) /* He released the lock. */ goto end; - break; } } if (!flag) { |