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authorJeff Layton <jlayton@redhat.com>2012-07-06 07:09:42 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-07-29 08:04:17 -0700
commitf952e137849253c0584a60cc2d73a220d9a091f8 (patch)
treeee16ccce6d0c45da200249eb8199f44f5bdb0d07 /fs
parentd8ae4bb4a1c12f9cfb373f215e624a9f1fca0767 (diff)
downloadlwn-f952e137849253c0584a60cc2d73a220d9a091f8.tar.gz
lwn-f952e137849253c0584a60cc2d73a220d9a091f8.zip
cifs: always update the inode cache with the results from a FIND_*
commit cd60042cc1392e79410dc8de9e9c1abb38a29e57 upstream. When we get back a FIND_FIRST/NEXT result, we have some info about the dentry that we use to instantiate a new inode. We were ignoring and discarding that info when we had an existing dentry in the cache. Fix this by updating the inode in place when we find an existing dentry and the uniqueid is the same. Reported-and-Tested-by: Andrew Bartlett <abartlet@samba.org> Reported-by: Bill Robertson <bill_robertson@debortoli.com.au> Reported-by: Dion Edwards <dion_edwards@debortoli.com.au> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/readdir.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 0a8224d1c4c5..a4217f02fab2 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -86,9 +86,12 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
dentry = d_lookup(parent, name);
if (dentry) {
- /* FIXME: check for inode number changes? */
- if (dentry->d_inode != NULL)
+ inode = dentry->d_inode;
+ /* update inode in place if i_ino didn't change */
+ if (inode && CIFS_I(inode)->uniqueid == fattr->cf_uniqueid) {
+ cifs_fattr_to_inode(inode, fattr);
return dentry;
+ }
d_drop(dentry);
dput(dentry);
}