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authorEric W. Biederman <ebiederm@xmission.com>2017-09-26 13:06:43 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-07-21 10:43:12 -0500
commit2c4704756cab7cfa031ada4dab361562f0e357c0 (patch)
tree8757eb8762d60e34eeab747493759abf3f902c09 /fs
parent71dbc8a96953aa91c50181a526acb7f80af74f67 (diff)
pids: Move the pgrp and session pid pointers from task_struct to signal_struct
To access these fields the code always has to go to group leader so going to signal struct is no loss and is actually a fundamental simplification. This saves a little bit of memory by only allocating the pid pointer array once instead of once for every thread, and even better this removes a few potential races caused by the fact that group_leader can be changed by de_thread, while signal_struct can not. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/autofs/autofs_i.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
index 9400a9f6318a..502812289850 100644
--- a/fs/autofs/autofs_i.h
+++ b/fs/autofs/autofs_i.h
@@ -18,6 +18,7 @@
#include <linux/string.h>
#include <linux/wait.h>
#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/uaccess.h>