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From: Andreas Gruenbacher <agruen@suse.de>
To: Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>,
	"Theodore Ts'o" <tytso@mit.edu>
Cc: Andrew Tridgell <tridge@osdl.org>,
	"Stephen C. Tweedie" <sct@redhat.com>,
	Andreas Dilger <adilger@clusterfs.com>,
	Alex Tomas <alex@clusterfs.com>,
	linux-kernel@vger.kernel.org
Subject: [patch 1/5] No lock needed when freeing inode
Date: Thu, 20 Jan 2005 03:01:24 +0100	[thread overview]
Message-ID: <20050120032510.612744000@suse.de> (raw)
In-Reply-To: 20050120020124.110155000@suse.de

[-- Attachment #1: ea-xattr-nolock.diff --]
[-- Type: text/plain, Size: 867 bytes --]

ext3_xattr_delete_inode is called from ext3_free_inode which always
has exclusive access to the inode, so there is no need to take the
xattr semaphore.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>

Index: linux-2.6.11-latest/fs/ext3/xattr.c
===================================================================
--- linux-2.6.11-latest.orig/fs/ext3/xattr.c
+++ linux-2.6.11-latest/fs/ext3/xattr.c
@@ -1066,7 +1066,6 @@ ext3_xattr_delete_inode(handle_t *handle
 {
 	struct buffer_head *bh = NULL;
 
-	down_write(&EXT3_I(inode)->xattr_sem);
 	if (!EXT3_I(inode)->i_file_acl)
 		goto cleanup;
 	bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
@@ -1088,7 +1087,6 @@ ext3_xattr_delete_inode(handle_t *handle
 
 cleanup:
 	brelse(bh);
-	up_write(&EXT3_I(inode)->xattr_sem);
 }
 
 /*

--
Andreas Gruenbacher <agruen@suse.de>
SUSE Labs, SUSE LINUX PRODUCTS GMBH


  reply	other threads:[~2005-01-20  3:23 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-20  2:01 [ea-in-inode 0/5] Further fixes Andreas Gruenbacher
2005-01-20  2:01 ` Andreas Gruenbacher [this message]
2005-01-20  2:01 ` [patch 4/5] Fix i_extra_isize check Andreas Gruenbacher
2005-01-20  2:01 ` [patch 3/5] Documentation fix Andreas Gruenbacher
2005-01-20  2:01 ` [patch 5/5] Disallow in-inode attributes for reserved inodes Andreas Gruenbacher
2005-01-20 12:16   ` Andreas Dilger
2005-01-20 13:29     ` Andreas Gruenbacher
2005-01-20 23:05       ` Andreas Dilger
2005-01-21  0:36         ` Andreas Gruenbacher
2005-01-20  2:01 ` [patch 2/5] Set the EXT3_FEATURE_COMPAT_EXT_ATTR for in-inode xattrs Andreas Gruenbacher
2005-01-21 22:58 ` [ea-in-inode 0/5] Further fixes Stephen C. Tweedie
2005-01-21 23:46   ` Andreas Gruenbacher
2005-01-23 13:22     ` Andrew Tridgell
2005-01-23 22:09     ` Andrew Tridgell
2005-01-23 22:58       ` Andreas Gruenbacher
2005-01-23 23:32         ` Andreas Gruenbacher
2005-01-24 11:24           ` Andrew Tridgell
2005-01-24 11:42             ` Christoph Hellwig
2005-01-24 14:11             ` Andreas Gruenbacher
2005-01-25  3:19             ` memory leak in 2.6.11-rc2 Andrew Tridgell
2005-01-25  3:20               ` Randy.Dunlap
2005-01-25  3:31                 ` Andrew Tridgell
2005-01-25  4:48                   ` Andrew Tridgell
2005-01-25  6:06                     ` Andrew Morton
2005-01-25 11:35                       ` Andrew Tridgell
2005-01-25 12:11                         ` Nick Piggin
2005-01-25  3:45               ` Dave Jones
2005-01-25 12:51                 ` Andrea Arcangeli
2005-01-25 13:31                   ` Andreas Gruenbacher
2005-01-25 13:55                     ` Andrea Arcangeli

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