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From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	Waiman Long <Waiman.Long@hp.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Dave Chinner <dchinner@redhat.com>
Subject: linux-next: manual merge of the akpm tree with Linus' tree
Date: Fri, 30 Aug 2013 18:44:56 +1000	[thread overview]
Message-ID: <20130830184456.ff4ceef498f429420c3e079d@canb.auug.org.au> (raw)

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Hi Andrew,

Today's linux-next merge of the akpm tree got a conflict in fs/dcache.c
between commit 98474236f72e ("vfs: make the dentry cache use the lockref
infrastructure") from Linus' tree and commit "dcache: remove dentries
from LRU before putting on dispose list" from the akpm tree.

I fixed it up (I think - please check, see below and also check the final
result when I publish) and can carry the fix as necessary (no action is
required).

I also added this fix patch:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 30 Aug 2013 18:38:42 +1000
Subject: [PATCH] dcache: fix up for lockref changes

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 fs/dcache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 58c5e4b..39939f1 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -837,7 +837,7 @@ dentry_lru_isolate(struct list_head *item, spinlock_t *lru_lock, void *arg)
 	 * counts, just remove them from the LRU. Otherwise give them
 	 * another pass through the LRU.
 	 */
-	if (dentry->d_count) {
+	if (dentry->d_lockref.count) {
 		list_del_init(&dentry->d_lru);
 		spin_unlock(&dentry->d_lock);
 		return LRU_REMOVED;
-- 
1.8.4.rc3

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

diff --cc fs/dcache.c
index 0fe810f,f5f8924..0000000
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@@ -780,10 -801,15 +794,11 @@@ static struct dentry * try_prune_one_de
  	/* Prune ancestors. */
  	dentry = parent;
  	while (dentry) {
 -		spin_lock(&dentry->d_lock);
 -		if (dentry->d_count > 1) {
 -			dentry->d_count--;
 -			spin_unlock(&dentry->d_lock);
 +		if (lockref_put_or_lock(&dentry->d_lockref))
- 			return;
- 		dentry = dentry_kill(dentry, 1);
+ 			return NULL;
 -		}
+ 		dentry = dentry_kill(dentry, 1, 1);
  	}
+ 	return NULL;
  }
  
  static void shrink_dentry_list(struct list_head *list)
@@@ -802,12 -828,18 +817,18 @@@
  		}
  
  		/*
+ 		 * The dispose list is isolated and dentries are not accounted
+ 		 * to the LRU here, so we can simply remove it from the list
+ 		 * here regardless of whether it is referenced or not.
+ 		 */
+ 		list_del_init(&dentry->d_lru);
+ 		dentry->d_flags &= ~DCACHE_SHRINK_LIST;
+ 
+ 		/*
  		 * We found an inuse dentry which was not removed from
- 		 * the LRU because of laziness during lookup.  Do not free
- 		 * it - just keep it off the LRU list.
+ 		 * the LRU because of laziness during lookup. Do not free it.
  		 */
 -		if (dentry->d_count) {
 +		if (dentry->d_lockref.count) {
- 			dentry_lru_del(dentry);
  			spin_unlock(&dentry->d_lock);
  			continue;
  		}

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             reply	other threads:[~2013-08-30  8:44 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-30  8:44 Stephen Rothwell [this message]
  -- strict thread matches above, loose matches on Subject: below --
2019-12-02  2:17 linux-next: manual merge of the akpm tree with Linus' tree Stephen Rothwell
2019-12-02  2:08 Stephen Rothwell
2018-10-15  7:22 Stephen Rothwell
2018-10-15  7:04 Stephen Rothwell
2018-03-26  8:56 Stephen Rothwell
2017-01-09  2:51 Stephen Rothwell
2016-12-12  5:49 Stephen Rothwell
2016-01-19  2:42 Stephen Rothwell
2016-01-19  2:36 Stephen Rothwell
2015-07-27  5:26 Stephen Rothwell
2013-09-10  4:38 Stephen Rothwell
2013-09-10 22:27 ` Andrew Morton
2013-09-10 22:29   ` Al Viro
2013-09-10 22:35     ` Andrew Morton
2013-09-10 22:36       ` Al Viro
2013-09-10 22:39         ` Al Viro
2013-09-10 22:41         ` Andrew Morton
2013-09-10 22:48           ` Al Viro
2013-09-10 22:59             ` Al Viro
2013-09-10 23:13               ` Andrew Morton
2013-09-10 23:55                 ` Al Viro
2013-09-11  4:30                 ` Stephen Rothwell
2013-09-10 23:37               ` Linus Torvalds
2013-09-10 23:53                 ` Al Viro
2013-09-11  0:01                   ` Linus Torvalds
2013-09-11  0:39                     ` Dave Chinner
2013-09-13  0:56                 ` Linus Torvalds
2013-09-13  1:12                   ` Linus Torvalds
2013-09-13  1:35                     ` Al Viro
2013-09-13 19:12                     ` Linus Torvalds
2013-09-13 19:28                       ` Linus Torvalds
2013-09-13 19:54                       ` Linus Torvalds
2013-09-13 20:00                       ` Al Viro
2013-09-13 20:18                         ` Al Viro
2013-09-13 20:23                           ` Al Viro
2013-09-13 20:25                         ` Linus Torvalds
2013-09-13 20:31                           ` Linus Torvalds
2013-09-13 20:31                           ` Al Viro
2013-09-13 20:34                             ` Linus Torvalds
2013-09-10 22:35   ` Linus Torvalds
2013-09-10 22:44     ` Andrew Morton
2013-09-11  0:30       ` Stephen Rothwell
2013-09-11  0:41         ` Linus Torvalds
2013-09-10  4:21 Stephen Rothwell
2013-09-10  4:09 Stephen Rothwell
2013-09-10  4:12 ` Stephen Rothwell
2013-09-09  5:38 Stephen Rothwell
2013-09-09  5:22 Stephen Rothwell
2013-09-09  5:16 Stephen Rothwell
2013-05-27  6:20 Stephen Rothwell
2013-05-20  4:04 Stephen Rothwell
2013-05-20 12:19 ` Chris Mason
2013-05-13  5:20 Eric Paris
2013-05-13  2:07 Stephen Rothwell
2013-05-13  2:11 ` Eric Paris
2013-05-13  4:16   ` Stephen Rothwell
2013-05-13  4:49   ` Kees Cook
2013-05-13  5:14     ` Eric Paris
2013-05-02  6:01 Stephen Rothwell
2013-04-29  8:38 Stephen Rothwell
2013-04-19  7:40 Stephen Rothwell
2013-04-16  7:25 Stephen Rothwell
2013-04-03  6:10 Stephen Rothwell
2013-03-25  4:22 Stephen Rothwell
2013-03-04  2:21 Stephen Rothwell
2013-01-04  3:27 Stephen Rothwell
2012-12-11  5:25 Stephen Rothwell
2012-12-11  5:22 Stephen Rothwell
2012-12-11  7:58 ` Glauber Costa
2012-12-07  6:39 Stephen Rothwell
2012-11-30  6:24 Stephen Rothwell
2012-11-26 12:52 Stephen Rothwell
2012-11-26 12:48 Stephen Rothwell
2012-11-26 13:25 ` Xiaotian Feng
2012-11-26 12:34 Stephen Rothwell
2012-10-15  2:07 Stephen Rothwell
2012-10-15 22:14 ` Catalin Marinas
2012-10-01 14:15 Stephen Rothwell
2012-08-22  5:59 Stephen Rothwell
2012-08-22  8:58 ` Mel Gorman
2012-07-27  3:57 Stephen Rothwell
2012-07-02  6:39 Stephen Rothwell
2012-06-04  4:58 Stephen Rothwell
2012-05-31  4:24 Stephen Rothwell
2012-05-31  4:13 Stephen Rothwell
2012-05-31  7:25 ` Johannes Weiner
2012-05-31  8:24   ` Stephen Rothwell
2012-05-31  8:27     ` Stephen Rothwell
2012-05-21  8:23 Stephen Rothwell
2012-05-21  8:13 Stephen Rothwell
2012-05-21  8:16 ` Cyrill Gorcunov
2012-03-08  6:53 Stephen Rothwell
2012-03-08  7:32 ` Andrew Morton
2012-03-08  7:41   ` Stephen Rothwell
2012-03-08  7:50     ` Andrew Morton
2012-03-08  7:50       ` Xiao Guangrong
2012-03-08  9:59       ` Xiao Guangrong
2012-03-08 21:24         ` Andrew Morton
2012-03-08 23:42           ` Linus Torvalds
2011-12-28  7:54 Stephen Rothwell
2011-11-08  3:24 Stephen Rothwell
2011-11-01  8:16 Stephen Rothwell
2011-11-01 10:47 ` Tao Ma
2011-09-16  6:09 Stephen Rothwell
2011-08-15  4:52 Stephen Rothwell

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