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authorJeff Layton <jlayton@redhat.com>2012-07-06 11:09:42 (GMT)
committerSteve French <smfrench@gmail.com>2012-07-17 04:57:23 (GMT)
commitcd60042cc1392e79410dc8de9e9c1abb38a29e57 (patch)
treeed9ac9505a2e12e63b9a4a97f02790a59d69811b
parent3cf003c08be785af4bee9ac05891a15bcbff856a (diff)
downloadlinux-cd60042cc1392e79410dc8de9e9c1abb38a29e57.tar.xz
cifs: always update the inode cache with the results from a FIND_*
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. Cc: <stable@vger.kernel.org> # .31.x 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>
-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 0a8224d..a4217f0 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);
}