aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/sched.h
diff options
context:
space:
mode:
authorEric W. Biederman <ebiederm@xmission.com>2007-02-12 03:53:00 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 12:48:32 -0500
commitab521dc0f8e117fd808d3e425216864d60390500 (patch)
treef9d6449c4d8c9508fd43edfe845108043e1536b2 /include/linux/sched.h
parent3e7cd6c413c9e6fbb5e1ee2acdadb4ababd2d474 (diff)
[PATCH] tty: update the tty layer to work with struct pid
Of kernel subsystems that work with pids the tty layer is probably the largest consumer. But it has the nice virtue that the assiation with a session only lasts until the session leader exits. Which means that no reference counting is required. So using struct pid winds up being a simple optimization to avoid hash table lookups. In the long term the use of pid_nr also ensures that when we have multiple pid spaces mixed everything will work correctly. Signed-off-by: Eric W. Biederman <eric@maxwell.lnxi.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 76c8e2dc48dd..39d40c518531 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -436,7 +436,7 @@ struct signal_struct {
436 436
437 /* job control IDs */ 437 /* job control IDs */
438 pid_t pgrp; 438 pid_t pgrp;
439 pid_t tty_old_pgrp; 439 struct pid *tty_old_pgrp;
440 440
441 union { 441 union {
442 pid_t session __deprecated; 442 pid_t session __deprecated;