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authorSteve French <sfrench@us.ibm.com>2009-01-13 22:03:55 +0000
committerSteve French <sfrench@us.ibm.com>2009-01-29 03:32:12 +0000
commit42c245447c8c3f998dfe880aba18b6e5129d2976 (patch)
tree430af06da69c1d518d9e6af0d577742ec27ed63d
parent6a7f8d36c00ab7adef5fb633f7805c91e8c1e139 (diff)
downloadop-kernel-dev-42c245447c8c3f998dfe880aba18b6e5129d2976.zip
op-kernel-dev-42c245447c8c3f998dfe880aba18b6e5129d2976.tar.gz
[CIFS] revalidate parent inode when rmdir done within that directory
When a search is pending of a parent directory, and a child directory within it is removed, we need to reset the parent directory's time so that we don't reuse the (now stale) search results. Thanks to Gunter Kukkukk for reporting this: > got the following failure notification on irc #samba: > > A user was updating from subversion 1.4 to 1.5, where the > repository is located on a samba share (independent of > unix extensions = Yes or No). > svn 1.4 did work, 1.5 does not. > > The user did a lot of stracing of subversion - and wrote a > testapplet to simulate the failing behaviour. > I've converted the C++ source to C and added some error cases. > > When using "./testdir" on a local file system, "result2" > is always (nil) as expected - cifs vfs behaves different here! > > ./testdir /mnt/cifs/mounted/share > > returns a (failing) valid pointer. Acked-by: Dave Kleikamp <shaggy@us.ibm.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
-rw-r--r--fs/cifs/CHANGES4
-rw-r--r--fs/cifs/inode.c5
2 files changed, 8 insertions, 1 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 080703a..73ac7eb 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -5,7 +5,9 @@ rather than posix (advisory) byte range locks, even though server would
support posix byte range locks. Fix query of root inode when prefixpath
specified and user does not have access to query information about the
top of the share. Fix problem in 2.6.28 resolving DFS paths to
-Samba servers (worked to Windows).
+Samba servers (worked to Windows). Fix rmdir so that pending search
+(readdir) requests do not get invalid results which include the now
+removed directory.
Version 1.55
------------
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 5ab9896..bcf7b51 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1285,6 +1285,11 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
cifsInode = CIFS_I(direntry->d_inode);
cifsInode->time = 0; /* force revalidate to go get info when
needed */
+
+ cifsInode = CIFS_I(inode);
+ cifsInode->time = 0; /* force revalidate to get parent dir info
+ since cached search results now invalid */
+
direntry->d_inode->i_ctime = inode->i_ctime = inode->i_mtime =
current_fs_time(inode->i_sb);
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