#include "dns_resolve.h"
#include "cifs_debug.h"
-LIST_HEAD(cifs_dfs_automount_list);
+static LIST_HEAD(cifs_dfs_automount_list);
-/*
- * DFS functions
-*/
+static void cifs_dfs_expire_automounts(struct work_struct *work);
+static DECLARE_DELAYED_WORK(cifs_dfs_automount_task,
+ cifs_dfs_expire_automounts);
+static int cifs_dfs_mountpoint_expiry_timeout = 500 * HZ;
-void dfs_shrink_umount_helper(struct vfsmount *vfsmnt)
+static void cifs_dfs_expire_automounts(struct work_struct *work)
{
- mark_mounts_for_expiry(&cifs_dfs_automount_list);
- mark_mounts_for_expiry(&cifs_dfs_automount_list);
- shrink_submounts(vfsmnt, &cifs_dfs_automount_list);
+ struct list_head *list = &cifs_dfs_automount_list;
+
+ mark_mounts_for_expiry(list);
+ if (!list_empty(list))
+ schedule_delayed_work(&cifs_dfs_automount_task,
+ cifs_dfs_mountpoint_expiry_timeout);
+}
+
+void cifs_dfs_release_automount_timer(void)
+{
+ BUG_ON(!list_empty(&cifs_dfs_automount_list));
+ cancel_delayed_work(&cifs_dfs_automount_task);
+ flush_scheduled_work();
}
/**
pSep = memchr(UNC+2, '\\', len-2);
if (!pSep) {
cERROR(1, ("%s: no server name end in node name: %s",
- __FUNCTION__, node_name));
+ __func__, node_name));
kfree(UNC);
return NULL;
}
/* find sharename end */
pSep++;
pSep = memchr(UNC+(pSep-UNC), '\\', len-(pSep-UNC));
- if (!pSep) {
- cERROR(1, ("%s:2 cant find share name in node name: %s",
- __FUNCTION__, node_name));
- kfree(UNC);
- return NULL;
+ if (pSep) {
+ /* trim path up to sharename end
+ * now we have share name in UNC */
+ *pSep = 0;
}
- /* trim path up to sharename end
- * * now we have share name in UNC */
- *pSep = 0;
return UNC;
}
rc = dns_resolve_server_name_to_ip(*devname, &srvIP);
if (rc != 0) {
cERROR(1, ("%s: Failed to resolve server part of %s to IP",
- __FUNCTION__, *devname));
+ __func__, *devname));
mountdata = ERR_PTR(rc);
goto compose_mount_options_out;
}
tkn_e = strchr(tkn_e+1, '\\');
if (tkn_e) {
strcat(mountdata, ",prefixpath=");
- strcat(mountdata, tkn_e);
+ strcat(mountdata, tkn_e+1);
}
}
- /*cFYI(1,("%s: parent mountdata: %s", __FUNCTION__,sb_mountdata));*/
- /*cFYI(1, ("%s: submount mountdata: %s", __FUNCTION__, mountdata ));*/
+ /*cFYI(1,("%s: parent mountdata: %s", __func__,sb_mountdata));*/
+ /*cFYI(1, ("%s: submount mountdata: %s", __func__, mountdata ));*/
compose_mount_options_out:
kfree(srvIP);
}
-static char *build_full_dfs_path_from_dentry(struct dentry *dentry)
-{
- char *full_path = NULL;
- char *search_path;
- char *tmp_path;
- size_t l_max_len;
- struct cifs_sb_info *cifs_sb;
-
- if (dentry->d_inode == NULL)
- return NULL;
-
- cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
-
- if (cifs_sb->tcon == NULL)
- return NULL;
-
- search_path = build_path_from_dentry(dentry);
- if (search_path == NULL)
- return NULL;
-
- if (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS) {
- /* we should use full path name to correct working with DFS */
- l_max_len = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE+1) +
- strnlen(search_path, MAX_PATHCONF) + 1;
- tmp_path = kmalloc(l_max_len, GFP_KERNEL);
- if (tmp_path == NULL) {
- kfree(search_path);
- return NULL;
- }
- strncpy(tmp_path, cifs_sb->tcon->treeName, l_max_len);
- strcat(tmp_path, search_path);
- tmp_path[l_max_len-1] = 0;
- full_path = tmp_path;
- kfree(search_path);
- } else {
- full_path = search_path;
- }
- return full_path;
-}
-
static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd,
struct list_head *mntlist)
{
err = do_add_mount(newmnt, nd, nd->path.mnt->mnt_flags, mntlist);
switch (err) {
case 0:
- dput(nd->path.dentry);
- mntput(nd->path.mnt);
+ path_put(&nd->path);
nd->path.mnt = newmnt;
nd->path.dentry = dget(newmnt->mnt_root);
+ schedule_delayed_work(&cifs_dfs_automount_task,
+ cifs_dfs_mountpoint_expiry_timeout);
break;
case -EBUSY:
/* someone else made a mount here whilst we were busy */
cFYI(1, ("DFS: node path: %s", ref->node_name));
cFYI(1, ("DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type));
cFYI(1, ("DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag,
- ref->PathConsumed));
+ ref->path_consumed));
}
int rc = 0;
struct vfsmount *mnt = ERR_PTR(-ENOENT);
- cFYI(1, ("in %s", __FUNCTION__));
+ cFYI(1, ("in %s", __func__));
BUG_ON(IS_ROOT(dentry));
xid = GetXid();
goto out_err;
}
- full_path = build_full_dfs_path_from_dentry(dentry);
+ full_path = build_path_from_dentry(dentry);
if (full_path == NULL) {
rc = -ENOMEM;
goto out_err;
len = strlen(referrals[i].node_name);
if (len < 2) {
cERROR(1, ("%s: Net Address path too short: %s",
- __FUNCTION__, referrals[i].node_name));
+ __func__, referrals[i].node_name));
rc = -EINVAL;
goto out_err;
}
nd->path.dentry,
referrals[i].node_name);
cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p",
- __FUNCTION__,
+ __func__,
referrals[i].node_name, mnt));
/* complete mount procedure if we accured submount */
FreeXid(xid);
free_dfs_info_array(referrals, num_referrals);
kfree(full_path);
- cFYI(1, ("leaving %s" , __FUNCTION__));
+ cFYI(1, ("leaving %s" , __func__));
return ERR_PTR(rc);
out_err:
path_put(&nd->path);