[tip:sched/core] sched: Document task_struct::personality field

[tip-bot for Andrei Epure]

Commit-ID:  9b89f6ba2ab56e4d9c00e7e591d6bc333137895e
Gitweb:     http://git.kernel.org/tip/9b89f6ba2ab56e4d9c00e7e591d6bc333137895e
Author:     Andrei Epure <epure.andrei@xxxxxxxxx>
AuthorDate: Thu, 11 Apr 2013 20:30:29 +0300
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Fri, 12 Apr 2013 07:20:27 +0200

sched: Document task_struct::personality field

Signed-off-by: Andrei Epure <epure.andrei@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1365701429-4721-1-git-send-email-epure.andrei@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 include/linux/sched.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9004f6e..6bdaa73 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1105,8 +1105,10 @@ struct task_struct {
 	int exit_code, exit_signal;
 	int pdeath_signal;  /*  The signal sent when the parent dies  */
 	unsigned int jobctl;	/* JOBCTL_*, siglock protected */
-	/* ??? */
+
+	/* Used for emulating ABI behavior of previous Linux versions */
 	unsigned int personality;
+
 	unsigned did_exec:1;
 	unsigned in_execve:1;	/* Tell the LSMs that the process is doing an
 				 * execve */
--
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