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From: Peter Zijlstra <peterz@infradead.org>
To: Al Viro <viro@ZenIV.linux.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Chris Mason <clm@fb.com>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	David Howells <dhowells@redhat.com>,
	elena.reshetova@intel.com, ishkamiel@gmail.com,
	dwindsor@gmail.com, gregkh@linuxfoundation.org,
	peterz@infradead.org
Subject: [RFC][PATCH 01/10] fs: Use lockdep_assert_held() instead of comments
Date: Fri, 24 Feb 2017 16:43:30 +0100	[thread overview]
Message-ID: <20170224162043.922049726@infradead.org> (raw)
In-Reply-To: <20170224154329.478276481@infradead.org>

[-- Attachment #1: peterz-fs-inode-1.patch --]
[-- Type: text/plain, Size: 854 bytes --]

Because nobody reads comments...

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 fs/inode.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

--- a/fs/inode.c
+++ b/fs/inode.c
@@ -384,11 +384,9 @@ static void init_once(void *foo)
 	inode_init_once(inode);
 }
 
-/*
- * inode->i_lock must be held
- */
 void __iget(struct inode *inode)
 {
+	lockdep_assert_held(&inode->i_lock);
 	atomic_inc(&inode->i_count);
 }
 
@@ -409,11 +407,10 @@ static void inode_lru_list_add(struct in
 
 /*
  * Add inode to LRU if needed (inode is unused and clean).
- *
- * Needs inode->i_lock held.
  */
 void inode_add_lru(struct inode *inode)
 {
+	lockdep_assert_held(&inode->i_lock);
 	if (!(inode->i_state & (I_DIRTY_ALL | I_SYNC |
 				I_FREEING | I_WILL_FREE)) &&
 	    !atomic_read(&inode->i_count) && inode->i_sb->s_flags & MS_ACTIVE)

  reply	other threads:[~2017-02-24 18:44 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-24 15:43 [RFC][PATCH 00/10] On inode::i_count and the usage vs reference count issue Peter Zijlstra
2017-02-24 15:43 ` Peter Zijlstra [this message]
2017-02-24 15:43 ` [RFC][PATCH 02/10] fs: Avoid looking at i_count without i_lock held Peter Zijlstra
     [not found]   ` <CA+55aFxLw8FXf61rsGYDjA1tS=joDeaF7OSgaepLWwcz4zt=dg@mail.gmail.com>
2017-02-24 17:06     ` Peter Zijlstra
2017-02-24 15:43 ` [RFC][PATCH 03/10] fs: Introduce i_count() Peter Zijlstra
2017-02-24 15:43 ` [RFC][PATCH 04/10] fs: Restructure iput() Peter Zijlstra
2017-02-24 15:43 ` [RFC][PATCH 05/10] fs: Remove iput_final() Peter Zijlstra
2017-02-24 15:43 ` [RFC][PATCH 06/10] fs: Rework i_count Peter Zijlstra
2017-02-24 20:49   ` Al Viro
2017-02-24 15:43 ` [RFC][PATCH 07/10] orangefs: Use RCU for destroy_inode Peter Zijlstra
2017-02-24 20:52   ` Al Viro
2017-02-24 23:00     ` Mike Marshall
2017-02-25 20:31       ` Mike Marshall
2017-02-27  0:34         ` Mike Marshall
2017-02-27  1:20           ` Linus Torvalds
2017-02-27  8:44         ` David Howells
2017-02-27 14:44           ` Mike Marshall
2017-02-24 15:43 ` [RFC][PATCH 08/10] fs: Do RCU versions for find_inode() Peter Zijlstra
2017-02-24 15:43 ` [RFC][PATCH 09/10] locking/refcount: Provide refcount_dec_unless() Peter Zijlstra
2017-02-27  9:28   ` Reshetova, Elena
2017-02-24 15:43 ` [RFC][PATCH 10/10] fs: Convert i_count over to refcount_t Peter Zijlstra
2017-02-24 16:43 ` [RFC][PATCH 00/10] On inode::i_count and the usage vs reference count issue Christoph Hellwig
2017-02-24 17:07   ` Peter Zijlstra
2017-02-24 20:59   ` David Windsor
     [not found] ` <CA+55aFy1bNbsX_3T-s_EUwTP-r_SmJJMvB3=-2nffehFVP=EdQ@mail.gmail.com>
     [not found]   ` <CA+55aFz0DbAGZ8gc+s35nm1N5frXjK_NOh7QzuSfZeJbjsT6Sg@mail.gmail.com>
     [not found]     ` <CA+55aFyR8wkHps5_AqUqzx8MDMNxRZZ7+MYH9g=ZCUi=4Oey8w@mail.gmail.com>
2017-02-24 19:24       ` Fwd: " Linus Torvalds
2017-02-24 20:42 ` Al Viro

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