linux-kernel - [PATCH] VFS: Remove detached-dentry counter from shrink_dcache_for_umount

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Message-ID: <20110322005130.10291.94709.stgit@warthog.procyon.org.uk>
Date:	Tue, 22 Mar 2011 00:51:30 +0000
From:	David Howells <dhowells@...hat.com>
To:	hch@...radead.org, viro@...IV.linux.org.uk
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	David Howells <dhowells@...hat.com>
Subject: [PATCH] VFS: Remove detached-dentry counter from
 shrink_dcache_for_umount_subtree()

Remove the detached-dentry counter from shrink_dcache_for_umount_subtree() as
the value it computes is no longer used as of commit
312d3ca856d369bb04d0443846b85b4cdde6fa8a which made the nr_dentry counters
summed per-CPU rather than global atomic.

Signed-off-by: David Howells <dhowells@...hat.com>
---

 fs/dcache.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index ad25c4c..2d5a5dc 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -894,7 +894,6 @@ EXPORT_SYMBOL(shrink_dcache_sb);
 static void shrink_dcache_for_umount_subtree(struct dentry *dentry)
 {
 	struct dentry *parent;
-	unsigned detached = 0;
 
 	BUG_ON(!IS_ROOT(dentry));
 
@@ -958,8 +957,6 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry)
 				spin_unlock(&parent->d_lock);
 			}
 
-			detached++;
-
 			inode = dentry->d_inode;
 			if (inode) {
 				dentry->d_inode = NULL;

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