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authorRonnie Sahlberg <lsahlber@redhat.com>2021-03-09 02:07:30 +0300
committerSteve French <stfrench@microsoft.com>2021-04-26 00:28:23 +0300
commit269f67e1ffead61777b1b0cf2ea0f61d06f8c56d (patch)
tree25800d121bcc16a69448c4aa33fb2e4c85c4daa6 /fs/cifs/smb2ops.c
parent45c0f1aabea9e6acc5332b93faca9803c6e9b19a (diff)
downloadlinux-269f67e1ffead61777b1b0cf2ea0f61d06f8c56d.tar.xz
cifs: store a pointer to the root dentry in cifs_sb_info once we have completed mounting the share
And use this to only allow to take out a shared handle once the mount has completed and the sb becomes available. This will become important in follow up patches where we will start holding a reference to the directory dentry for the shared handle during the lifetime of the handle. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2ops.c')
-rw-r--r--fs/cifs/smb2ops.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 89269a5c02c7..3ff460035705 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -751,8 +751,11 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
if (tcon->nohandlecache)
return -ENOTSUPP;
+ if (cifs_sb->root == NULL)
+ return -ENOENT;
+
if (strlen(path))
- return -ENOTSUPP;
+ return -ENOENT;
mutex_lock(&tcon->crfid.fid_mutex);
if (tcon->crfid.is_valid) {