1 files changed, 37 insertions, 9 deletions

diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c
index 0748d7b757b9..7d15a1969b81 100644
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -27,9 +27,6 @@
 #include "fs_context.h"
 #include "cached_dir.h"
 
-extern mempool_t *cifs_sm_req_poolp;
-extern mempool_t *cifs_req_poolp;
-
 /* The xid serves as a useful identifier for each incoming vfs request,
    in a similar way to the mid which is useful to track each sent smb,
    and CurrentXid can also provide a running counter (although it
@@ -101,6 +98,7 @@ sesInfoFree(struct cifs_ses *buf_to_free)
 	kfree(buf_to_free->serverDomain);
 	kfree(buf_to_free->serverNOS);
 	kfree_sensitive(buf_to_free->password);
+	kfree_sensitive(buf_to_free->password2);
 	kfree(buf_to_free->user_name);
 	kfree(buf_to_free->domainName);
 	kfree_sensitive(buf_to_free->auth_key.response);
@@ -141,9 +139,6 @@ tcon_info_alloc(bool dir_leases_enabled)
 	atomic_set(&ret_buf->num_local_opens, 0);
 	atomic_set(&ret_buf->num_remote_opens, 0);
 	ret_buf->stats_from_time = ktime_get_real_seconds();
-#ifdef CONFIG_CIFS_DFS_UPCALL
-	INIT_LIST_HEAD(&ret_buf->dfs_ses_list);
-#endif
 
 	return ret_buf;
 }
@@ -159,9 +154,6 @@ tconInfoFree(struct cifs_tcon *tcon)
 	atomic_dec(&tconInfoAllocCount);
 	kfree(tcon->nativeFileSystem);
 	kfree_sensitive(tcon->password);
-#ifdef CONFIG_CIFS_DFS_UPCALL
-	dfs_put_root_smb_sessions(&tcon->dfs_ses_list);
-#endif
 	kfree(tcon->origin_fullpath);
 	kfree(tcon);
 }
@@ -490,6 +482,8 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
 	/* look up tcon based on tid & uid */
 	spin_lock(&cifs_tcp_ses_lock);
 	list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) {
+		if (cifs_ses_exiting(ses))
+			continue;
 		list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
 			if (tcon->tid != buf->Tid)
 				continue;
@@ -853,6 +847,40 @@ cifs_close_deferred_file_under_dentry(struct cifs_tcon *tcon, const char *path)
 	free_dentry_path(page);
 }
 
+/*
+ * If a dentry has been deleted, all corresponding open handles should know that
+ * so that we do not defer close them.
+ */
+void cifs_mark_open_handles_for_deleted_file(struct inode *inode,
+					     const char *path)
+{
+	struct cifsFileInfo *cfile;
+	void *page;
+	const char *full_path;
+	struct cifsInodeInfo *cinode = CIFS_I(inode);
+
+	page = alloc_dentry_path();
+	spin_lock(&cinode->open_file_lock);
+
+	/*
+	 * note: we need to construct path from dentry and compare only if the
+	 * inode has any hardlinks. When number of hardlinks is 1, we can just
+	 * mark all open handles since they are going to be from the same file.
+	 */
+	if (inode->i_nlink > 1) {
+		list_for_each_entry(cfile, &cinode->openFileList, flist) {
+			full_path = build_path_from_dentry(cfile->dentry, page);
+			if (!IS_ERR(full_path) && strcmp(full_path, path) == 0)
+				cfile->status_file_deleted = true;
+		}
+	} else {
+		list_for_each_entry(cfile, &cinode->openFileList, flist)
+			cfile->status_file_deleted = true;
+	}
+	spin_unlock(&cinode->open_file_lock);
+	free_dentry_path(page);
+}
+
 /* parses DFS referral V3 structure
  * caller is responsible for freeing target_nodes
  * returns: