diff options
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index d6aaeff4a30a..d7ade739cde1 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -699,6 +699,7 @@ smb2_close_cached_fid(struct kref *ref) { struct cached_fid *cfid = container_of(ref, struct cached_fid, refcount); + struct cached_dirent *dirent, *q; if (cfid->is_valid) { cifs_dbg(FYI, "clear cached root file handle\n"); @@ -718,6 +719,21 @@ smb2_close_cached_fid(struct kref *ref) dput(cfid->dentry); cfid->dentry = NULL; } + /* + * Delete all cached dirent names + */ + mutex_lock(&cfid->dirents.de_mutex); + list_for_each_entry_safe(dirent, q, &cfid->dirents.entries, entry) { + list_del(&dirent->entry); + kfree(dirent->name); + kfree(dirent); + } + cfid->dirents.is_valid = 0; + cfid->dirents.is_failed = 0; + cfid->dirents.ctx = NULL; + cfid->dirents.pos = 0; + mutex_unlock(&cfid->dirents.de_mutex); + } void close_cached_dir(struct cached_fid *cfid) @@ -754,14 +770,15 @@ smb2_cached_lease_break(struct work_struct *work) /* * Open the and cache a directory handle. * Only supported for the root handle. + * If error then *cfid is not initialized. */ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon, const char *path, struct cifs_sb_info *cifs_sb, struct cached_fid **cfid) { - struct cifs_ses *ses = tcon->ses; - struct TCP_Server_Info *server = ses->server; + struct cifs_ses *ses; + struct TCP_Server_Info *server; struct cifs_open_parms oparms; struct smb2_create_rsp *o_rsp = NULL; struct smb2_query_info_rsp *qi_rsp = NULL; @@ -776,9 +793,13 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid; struct dentry *dentry; - if (tcon->nohandlecache) + if (tcon == NULL || tcon->nohandlecache || + is_smb1_server(tcon->ses->server)) return -ENOTSUPP; + ses = tcon->ses; + server = ses->server; + if (cifs_sb->root == NULL) return -ENOENT; @@ -824,7 +845,7 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon, rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; oparms.tcon = tcon; - oparms.create_options = cifs_create_options(cifs_sb, 0); + oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_FILE); oparms.desired_access = FILE_READ_ATTRIBUTES; oparms.disposition = FILE_OPEN; oparms.fid = pfid; @@ -2695,7 +2716,8 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon, resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; memset(rsp_iov, 0, sizeof(rsp_iov)); - rc = open_cached_dir(xid, tcon, path, cifs_sb, &cfid); + if (!strcmp(path, "")) + open_cached_dir(xid, tcon, path, cifs_sb, &cfid); /* cfid null if open dir failed */ memset(&open_iov, 0, sizeof(open_iov)); rqst[0].rq_iov = open_iov; |