CIFS: make 'nodfs' mount opt a superblock flag

[linux.git] / fs / cifs / cifsfs.c

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 7065426b3280f95d495ec74df7c79b6b785b6688..d2f9bc48ffac86d2044dca19245ea62e9e98f880 100644 (file)
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -81,6 +81,14 @@ module_param(cifs_max_pending, uint, 0444);
 MODULE_PARM_DESC(cifs_max_pending, "Simultaneous requests to server for "
                                   "CIFS/SMB1 dialect (N/A for SMB3) "
                                   "Default: 32767 Range: 2 to 32767.");
+#ifdef CONFIG_CIFS_STATS2
+unsigned int slow_rsp_threshold = 1;
+module_param(slow_rsp_threshold, uint, 0644);
+MODULE_PARM_DESC(slow_rsp_threshold, "Amount of time (in seconds) to wait "
+                                  "before logging that a response is delayed. "
+                                  "Default: 1 (if set to 0 disables msg).");
+#endif /* STATS2 */
+
 module_param(enable_oplocks, bool, 0644);
 MODULE_PARM_DESC(enable_oplocks, "Enable or disable oplocks. Default: y/Y/1");
 
@@ -492,6 +500,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
                seq_puts(s, ",unix");
        else
                seq_puts(s, ",nounix");
+       if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)
+               seq_puts(s, ",nodfs");
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
                seq_puts(s, ",posixpaths");
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
@@ -1418,6 +1428,11 @@ init_cifs(void)
 #ifdef CONFIG_CIFS_STATS2
        atomic_set(&totBufAllocCount, 0);
        atomic_set(&totSmBufAllocCount, 0);
+       if (slow_rsp_threshold < 1)
+               cifs_dbg(FYI, "slow_response_threshold msgs disabled\n");
+       else if (slow_rsp_threshold > 32767)
+               cifs_dbg(VFS,
+                      "slow response threshold set higher than recommended (0 to 32767)\n");
 #endif /* CONFIG_CIFS_STATS2 */
 
        atomic_set(&midCount, 0);
@@ -1538,11 +1553,11 @@ exit_cifs(void)
        cifs_proc_clean();
 }
 
-MODULE_AUTHOR("Steve French <[email protected]>");
+MODULE_AUTHOR("Steve French");
 MODULE_LICENSE("GPL"); /* combination of LGPL + GPL source behaves as GPL */
 MODULE_DESCRIPTION
-    ("VFS to access servers complying with the SNIA CIFS Specification "
-     "e.g. Samba and Windows");
+       ("VFS to access SMB3 servers e.g. Samba, Macs, Azure and Windows (and "
+       "also older servers complying with the SNIA CIFS Specification)");
 MODULE_VERSION(CIFS_VERSION);
 MODULE_SOFTDEP("pre: arc4");
 MODULE_SOFTDEP("pre: des");