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From: Miklos Szeredi <miklos@szeredi.hu>
To: akpm@linux-foundation.org
Cc: hch@infradead.org, viro@ZenIV.linux.org.uk, ezk@cs.sunysb.edu,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Subject: [patch 06/22] hpfs: dont call notify_change
Date: Fri, 16 May 2008 18:31:42 +0200	[thread overview]
Message-ID: <20080516163220.904119622@szeredi.hu> (raw)
In-Reply-To: <20080516163136.560107038@szeredi.hu>

[-- Attachment #1: hpfs_notify_change_cleanup.patch --]
[-- Type: text/plain, Size: 1291 bytes --]

From: Miklos Szeredi <mszeredi@suse.cz>

hpfs_unlink() calls notify_change() to truncate the file before
deleting.  Replace with explicit call to hpfs_notify_change().

This is equivalent, except that:
 - security_inode_setattr() is not called before hpfs_notify_change()
 - fsnotify_change() is not called after hpfs_notify_change()

The truncation is just an implementation detail, so both the security
check and the notification are unnecessary.

Possibly even the ctime modification is wrong?

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
---
 fs/hpfs/namei.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6/fs/hpfs/namei.c
===================================================================
--- linux-2.6.orig/fs/hpfs/namei.c	2008-05-16 17:50:35.000000000 +0200
+++ linux-2.6/fs/hpfs/namei.c	2008-05-16 17:50:45.000000000 +0200
@@ -426,7 +426,8 @@ again:
 			/*printk("HPFS: truncating file before delete.\n");*/
 			newattrs.ia_size = 0;
 			newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-			err = notify_change(dentry, &newattrs);
+			newattrs.ia_ctime = current_fs_time(inode->i_sb);
+			err = hpfs_notify_change(dentry, &newattrs);
 			put_write_access(inode);
 			if (!err)
 				goto again;

--

  parent reply	other threads:[~2008-05-16 16:34 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-16 16:31 [patch 00/22] vfs: fixes and cleanups (v3) Miklos Szeredi
2008-05-16 16:31 ` [patch 01/22] nfsd: clean up mnt_want_write calls Miklos Szeredi
2008-05-16 16:31 ` [patch 02/22] cgroup: dont call vfs_mkdir Miklos Szeredi
2008-05-16 16:31 ` [patch 03/22] reiserfs: dont call vfs_rmdir Miklos Szeredi
2008-05-16 16:31 ` [patch 04/22] reiserfs: dont call notify_change Miklos Szeredi
2008-05-16 16:31 ` [patch 05/22] sysfs: " Miklos Szeredi
2008-05-16 16:31 ` Miklos Szeredi [this message]
2008-05-16 16:31 ` [patch 07/22] fat: " Miklos Szeredi
2008-05-16 23:25   ` OGAWA Hirofumi
2008-05-17  6:56     ` Miklos Szeredi
2008-05-17 13:01       ` Brad Boyer
2008-05-19  7:47         ` Miklos Szeredi
2008-05-16 16:31 ` [patch 08/22] vfs: immutable inode checking cleanup Miklos Szeredi
2008-05-16 16:31 ` [patch 09/22] vfs: truncate: dont check immutable twice Miklos Szeredi
2008-05-16 16:31 ` [patch 10/22] vfs: create file_truncate() helper Miklos Szeredi
2008-05-16 16:31 ` [patch 11/22] vfs: utimes immutable fix Miklos Szeredi
2008-05-16 16:31 ` [patch 12/22] vfs: utimes cleanup Miklos Szeredi
2008-05-16 16:31 ` [patch 13/22] vfs: add path_create() and path_mknod() Miklos Szeredi
2008-05-16 16:31 ` [patch 14/22] vfs: add path_mkdir() Miklos Szeredi
2008-05-16 16:31 ` [patch 15/22] vfs: add path_rmdir() Miklos Szeredi
2008-05-16 16:31 ` [patch 16/22] vfs: add path_unlink() Miklos Szeredi
2008-05-16 16:31 ` [patch 17/22] vfs: add path_symlink() Miklos Szeredi
2008-05-17  1:14   ` Tetsuo Handa
2008-05-17  7:36     ` Miklos Szeredi
2008-05-16 16:31 ` [patch 18/22] vfs: add path_link() Miklos Szeredi
2008-05-16 16:31 ` [patch 19/22] vfs: add path_rename() Miklos Szeredi
2008-05-16 16:31 ` [patch 20/22] vfs: add path_setattr() Miklos Szeredi
2008-05-16 16:31 ` [patch 21/22] vfs: add path_setxattr() Miklos Szeredi
2008-05-16 16:31 ` [patch 22/22] vfs: add path_removexattr() Miklos Szeredi

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