Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] update cifs version to 1.73
  [CIFS] trivial cleanup fscache cFYI and cERROR messages
  cifs: correctly handle NULL tcon pointer in CIFSTCon
  cifs: show sec= option in /proc/mounts
  cifs: don't allow cifs_reconnect to exit with NULL socket pointer
  CIFS: Fix sparse error

5 files changed, 73 insertions, 42 deletions

diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
index dd8584d35a1..545509c3313 100644
--- a/fs/cifs/cache.c
+++ b/fs/cifs/cache.c
@@ -92,7 +92,7 @@ static uint16_t cifs_server_get_key(const void *cookie_netfs_data,
 		break;
 
 	default:
-		cERROR(1, "CIFS: Unknown network family '%d'", sa->sa_family);
+		cERROR(1, "Unknown network family '%d'", sa->sa_family);
 		key_len = 0;
 		break;
 	}
@@ -152,7 +152,7 @@ static uint16_t cifs_super_get_key(const void *cookie_netfs_data, void *buffer,
 
 	sharename = extract_sharename(tcon->treeName);
 	if (IS_ERR(sharename)) {
-		cFYI(1, "CIFS: couldn't extract sharename\n");
+		cFYI(1, "%s: couldn't extract sharename\n", __func__);
 		sharename = NULL;
 		return 0;
 	}
@@ -302,7 +302,7 @@ static void cifs_fscache_inode_now_uncached(void *cookie_netfs_data)
 	pagevec_init(&pvec, 0);
 	first = 0;
 
-	cFYI(1, "cifs inode 0x%p now uncached", cifsi);
+	cFYI(1, "%s: cifs inode 0x%p now uncached", __func__, cifsi);
 
 	for (;;) {
 		nr_pages = pagevec_lookup(&pvec,
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 989442dcfb4..e9def996e38 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -352,6 +352,37 @@ cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
 	}
 }
 
+static void
+cifs_show_security(struct seq_file *s, struct TCP_Server_Info *server)
+{
+	seq_printf(s, ",sec=");
+
+	switch (server->secType) {
+	case LANMAN:
+		seq_printf(s, "lanman");
+		break;
+	case NTLMv2:
+		seq_printf(s, "ntlmv2");
+		break;
+	case NTLM:
+		seq_printf(s, "ntlm");
+		break;
+	case Kerberos:
+		seq_printf(s, "krb5");
+		break;
+	case RawNTLMSSP:
+		seq_printf(s, "ntlmssp");
+		break;
+	default:
+		/* shouldn't ever happen */
+		seq_printf(s, "unknown");
+		break;
+	}
+
+	if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+		seq_printf(s, "i");
+}
+
 /*
  * cifs_show_options() is for displaying mount options in /proc/mounts.
  * Not all settable options are displayed but most of the important
@@ -365,6 +396,8 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
 	struct sockaddr *srcaddr;
 	srcaddr = (struct sockaddr *)&tcon->ses->server->srcaddr;
 
+	cifs_show_security(s, tcon->ses->server);
+
 	seq_printf(s, ",unc=%s", tcon->treeName);
 
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 64313f778eb..0900e1658c9 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -129,5 +129,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 extern const struct export_operations cifs_export_ops;
 #endif /* CIFS_NFSD_EXPORT */
 
-#define CIFS_VERSION   "1.72"
+#define CIFS_VERSION   "1.73"
 #endif				/* _CIFSFS_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index bb659eb7381..12cf72dd0c4 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -152,7 +152,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
 		mid_entry->callback(mid_entry);
 	}
 
-	while (server->tcpStatus == CifsNeedReconnect) {
+	do {
 		try_to_freeze();
 
 		/* we should try only the port we connected to before */
@@ -167,7 +167,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
 				server->tcpStatus = CifsNeedNegotiate;
 			spin_unlock(&GlobalMid_Lock);
 		}
-	}
+	} while (server->tcpStatus == CifsNeedReconnect);
 
 	return rc;
 }
@@ -2149,7 +2149,10 @@ cifs_put_tlink(struct tcon_link *tlink)
 }
 
 static inline struct tcon_link *
-cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb);
+cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb)
+{
+	return cifs_sb->master_tlink;
+}
 
 static int
 compare_mount_options(struct super_block *sb, struct cifs_mnt_data *mnt_data)
@@ -3171,6 +3174,10 @@ out:
 	return rc;
 }
 
+/*
+ * Issue a TREE_CONNECT request. Note that for IPC$ shares, that the tcon
+ * pointer may be NULL.
+ */
 int
 CIFSTCon(unsigned int xid, struct cifs_ses *ses,
 	 const char *tree, struct cifs_tcon *tcon,
@@ -3205,7 +3212,7 @@ CIFSTCon(unsigned int xid, struct cifs_ses *ses,
 	pSMB->AndXCommand = 0xFF;
 	pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO);
 	bcc_ptr = &pSMB->Password[0];
-	if ((ses->server->sec_mode) & SECMODE_USER) {
+	if (!tcon || (ses->server->sec_mode & SECMODE_USER)) {
 		pSMB->PasswordLength = cpu_to_le16(1);	/* minimum */
 		*bcc_ptr = 0; /* password is null byte */
 		bcc_ptr++;              /* skip password */
@@ -3371,7 +3378,7 @@ int cifs_negotiate_protocol(unsigned int xid, struct cifs_ses *ses)
 	}
 	if (rc == 0) {
 		spin_lock(&GlobalMid_Lock);
-		if (server->tcpStatus != CifsExiting)
+		if (server->tcpStatus == CifsNeedNegotiate)
 			server->tcpStatus = CifsGood;
 		else
 			rc = -EHOSTDOWN;
@@ -3484,12 +3491,6 @@ out:
 	return tcon;
 }
 
-static inline struct tcon_link *
-cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb)
-{
-	return cifs_sb->master_tlink;
-}
-
 struct cifs_tcon *
 cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb)
 {
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index d368a47ba5e..816696621ec 100644
--- a/fs/cifs/fscache.c
+++ b/fs/cifs/fscache.c
@@ -28,14 +28,14 @@ void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server)
 	server->fscache =
 		fscache_acquire_cookie(cifs_fscache_netfs.primary_index,
 				&cifs_fscache_server_index_def, server);
-	cFYI(1, "CIFS: get client cookie (0x%p/0x%p)", server,
-				server->fscache);
+	cFYI(1, "%s: (0x%p/0x%p)", __func__, server,
+			server->fscache);
 }
 
 void cifs_fscache_release_client_cookie(struct TCP_Server_Info *server)
 {
-	cFYI(1, "CIFS: release client cookie (0x%p/0x%p)", server,
-				server->fscache);
+	cFYI(1, "%s: (0x%p/0x%p)", __func__, server,
+			server->fscache);
 	fscache_relinquish_cookie(server->fscache, 0);
 	server->fscache = NULL;
 }
@@ -47,13 +47,13 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
 	tcon->fscache =
 		fscache_acquire_cookie(server->fscache,
 				&cifs_fscache_super_index_def, tcon);
-	cFYI(1, "CIFS: get superblock cookie (0x%p/0x%p)",
-				server->fscache, tcon->fscache);
+	cFYI(1, "%s: (0x%p/0x%p)", __func__, server->fscache,
+			tcon->fscache);
 }
 
 void cifs_fscache_release_super_cookie(struct cifs_tcon *tcon)
 {
-	cFYI(1, "CIFS: releasing superblock cookie (0x%p)", tcon->fscache);
+	cFYI(1, "%s: (0x%p)", __func__, tcon->fscache);
 	fscache_relinquish_cookie(tcon->fscache, 0);
 	tcon->fscache = NULL;
 }
@@ -70,8 +70,8 @@ static void cifs_fscache_enable_inode_cookie(struct inode *inode)
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE) {
 		cifsi->fscache = fscache_acquire_cookie(tcon->fscache,
 				&cifs_fscache_inode_object_def, cifsi);
-		cFYI(1, "CIFS: got FH cookie (0x%p/0x%p)", tcon->fscache,
-				cifsi->fscache);
+		cFYI(1, "%s: got FH cookie (0x%p/0x%p)", __func__,
+				tcon->fscache, cifsi->fscache);
 	}
 }
 
@@ -80,8 +80,7 @@ void cifs_fscache_release_inode_cookie(struct inode *inode)
 	struct cifsInodeInfo *cifsi = CIFS_I(inode);
 
 	if (cifsi->fscache) {
-		cFYI(1, "CIFS releasing inode cookie (0x%p)",
-				cifsi->fscache);
+		cFYI(1, "%s: (0x%p)", __func__, cifsi->fscache);
 		fscache_relinquish_cookie(cifsi->fscache, 0);
 		cifsi->fscache = NULL;
 	}
@@ -92,8 +91,7 @@ static void cifs_fscache_disable_inode_cookie(struct inode *inode)
 	struct cifsInodeInfo *cifsi = CIFS_I(inode);
 
 	if (cifsi->fscache) {
-		cFYI(1, "CIFS disabling inode cookie (0x%p)",
-				cifsi->fscache);
+		cFYI(1, "%s: (0x%p)", __func__, cifsi->fscache);
 		fscache_relinquish_cookie(cifsi->fscache, 1);
 		cifsi->fscache = NULL;
 	}
@@ -121,8 +119,8 @@ void cifs_fscache_reset_inode_cookie(struct inode *inode)
 					cifs_sb_master_tcon(cifs_sb)->fscache,
 					&cifs_fscache_inode_object_def,
 					cifsi);
-		cFYI(1, "CIFS: new cookie 0x%p oldcookie 0x%p",
-				cifsi->fscache, old);
+		cFYI(1, "%s: new cookie 0x%p oldcookie 0x%p",
+				__func__, cifsi->fscache, old);
 	}
 }
 
@@ -132,8 +130,8 @@ int cifs_fscache_release_page(struct page *page, gfp_t gfp)
 		struct inode *inode = page->mapping->host;
 		struct cifsInodeInfo *cifsi = CIFS_I(inode);
 
-		cFYI(1, "CIFS: fscache release page (0x%p/0x%p)",
-				page, cifsi->fscache);
+		cFYI(1, "%s: (0x%p/0x%p)", __func__, page,
+				cifsi->fscache);
 		if (!fscache_maybe_release_page(cifsi->fscache, page, gfp))
 			return 0;
 	}
@@ -144,8 +142,7 @@ int cifs_fscache_release_page(struct page *page, gfp_t gfp)
 static void cifs_readpage_from_fscache_complete(struct page *page, void *ctx,
 						int error)
 {
-	cFYI(1, "CFS: readpage_from_fscache_complete (0x%p/%d)",
-			page, error);
+	cFYI(1, "%s: (0x%p/%d)", __func__, page, error);
 	if (!error)
 		SetPageUptodate(page);
 	unlock_page(page);
@@ -158,7 +155,7 @@ int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
 {
 	int ret;
 
-	cFYI(1, "CIFS: readpage_from_fscache(fsc:%p, p:%p, i:0x%p",
+	cFYI(1, "%s: (fsc:%p, p:%p, i:0x%p", __func__,
 			CIFS_I(inode)->fscache, page, inode);
 	ret = fscache_read_or_alloc_page(CIFS_I(inode)->fscache, page,
 					 cifs_readpage_from_fscache_complete,
@@ -167,11 +164,11 @@ int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
 	switch (ret) {
 
 	case 0: /* page found in fscache, read submitted */
-		cFYI(1, "CIFS: readpage_from_fscache: submitted");
+		cFYI(1, "%s: submitted", __func__);
 		return ret;
 	case -ENOBUFS:	/* page won't be cached */
 	case -ENODATA:	/* page not in cache */
-		cFYI(1, "CIFS: readpage_from_fscache %d", ret);
+		cFYI(1, "%s: %d", __func__, ret);
 		return 1;
 
 	default:
@@ -190,7 +187,7 @@ int __cifs_readpages_from_fscache(struct inode *inode,
 {
 	int ret;
 
-	cFYI(1, "CIFS: __cifs_readpages_from_fscache (0x%p/%u/0x%p)",
+	cFYI(1, "%s: (0x%p/%u/0x%p)", __func__,
 			CIFS_I(inode)->fscache, *nr_pages, inode);
 	ret = fscache_read_or_alloc_pages(CIFS_I(inode)->fscache, mapping,
 					  pages, nr_pages,
@@ -199,12 +196,12 @@ int __cifs_readpages_from_fscache(struct inode *inode,
 					  mapping_gfp_mask(mapping));
 	switch (ret) {
 	case 0:	/* read submitted to the cache for all pages */
-		cFYI(1, "CIFS: readpages_from_fscache: submitted");
+		cFYI(1, "%s: submitted", __func__);
 		return ret;
 
 	case -ENOBUFS:	/* some pages are not cached and can't be */
 	case -ENODATA:	/* some pages are not cached */
-		cFYI(1, "CIFS: readpages_from_fscache: no page");
+		cFYI(1, "%s: no page", __func__);
 		return 1;
 
 	default:
@@ -218,7 +215,7 @@ void __cifs_readpage_to_fscache(struct inode *inode, struct page *page)
 {
 	int ret;
 
-	cFYI(1, "CIFS: readpage_to_fscache(fsc: %p, p: %p, i: %p",
+	cFYI(1, "%s: (fsc: %p, p: %p, i: %p)", __func__,
 			CIFS_I(inode)->fscache, page, inode);
 	ret = fscache_write_page(CIFS_I(inode)->fscache, page, GFP_KERNEL);
 	if (ret != 0)
@@ -230,7 +227,7 @@ void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode)
 	struct cifsInodeInfo *cifsi = CIFS_I(inode);
 	struct fscache_cookie *cookie = cifsi->fscache;
 
-	cFYI(1, "CIFS: fscache invalidatepage (0x%p/0x%p)", page, cookie);
+	cFYI(1, "%s: (0x%p/0x%p)", __func__, page, cookie);
 	fscache_wait_on_page_write(cookie, page);
 	fscache_uncache_page(cookie, page);
 }