From: Oleg Nesterov <oleg@redhat.com>
To: Al Viro <viro@zeniv.linux.org.uk>,
Eric Dumazet <eric.dumazet@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
"Ingo Molnar" <mingo@kernel.org>,
"Maciej Żenczykowski" <maze@google.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] fput: move ->f_next_put into a union with ->f_version
Date: Tue, 8 Sep 2015 19:14:49 +0200 [thread overview]
Message-ID: <20150908171449.GA14596@redhat.com> (raw)
In-Reply-To: <20150908171433.GA14573@redhat.com>
file->f_next_put can share the memory with file->f_version (I hope).
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
include/linux/fs.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3941b86..58faad6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -860,8 +860,10 @@ struct file {
const struct cred *f_cred;
struct file_ra_state f_ra;
- u64 f_version;
- struct file *f_next_put;
+ union {
+ u64 f_version;
+ struct file *f_next_put;
+ };
#ifdef CONFIG_SECURITY
void *f_security;
#endif
--
2.4.3
next prev parent reply other threads:[~2015-09-08 17:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-08 17:14 [PATCH 0/3] task_work: restore fifo ordering guarantee Oleg Nesterov
2015-09-08 17:14 ` [PATCH 1/3] fput: don't abuse task_work_add() when possible Oleg Nesterov
2015-09-08 17:14 ` Oleg Nesterov [this message]
2015-09-08 17:14 ` [PATCH 3/3] Revert "task_work: remove fifo ordering guarantee" Oleg Nesterov
2015-09-08 17:39 ` Linus Torvalds
2015-09-08 17:41 ` Linus Torvalds
2015-09-09 13:16 ` Oleg Nesterov
2015-09-09 16:17 ` Linus Torvalds
2015-09-09 16:43 ` Oleg Nesterov
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