[CIFS] Fix oops in cifs_close due to unitialized lock sem and list in
new POSIX locking code
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index acb843b..bd37727 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -2,7 +2,10 @@
------------
Do not time out lockw calls when using posix extensions. Do not
time out requests if server still responding reasonably fast
-on requests on other threads
+on requests on other threads. Improve POSIX locking emulation,
+(lock cancel now works, and unlock of merged range works even
+to Windows servers now). Fix oops on mount to lanman servers
+(win9x, os/2 etc.) when null password.
Version 1.44
------------
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b706b4f..5d394c7 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1271,33 +1271,35 @@
read_lock(&GlobalSMBSeslock);
list_for_each(tmp, &GlobalTreeConnectionList) {
- cFYI(1, ("Next tcon - "));
+ cFYI(1, ("Next tcon"));
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
if (tcon->ses) {
if (tcon->ses->server) {
cFYI(1,
- (" old ip addr: %x == new ip %x ?",
+ ("old ip addr: %x == new ip %x ?",
tcon->ses->server->addr.sockAddr.sin_addr.
s_addr, new_target_ip_addr));
if (tcon->ses->server->addr.sockAddr.sin_addr.
s_addr == new_target_ip_addr) {
- /* BB lock tcon and server and tcp session and increment use count here? */
+ /* BB lock tcon, server and tcp session and increment use count here? */
/* found a match on the TCP session */
/* BB check if reconnection needed */
- cFYI(1,("Matched ip, old UNC: %s == new: %s ?",
+ cFYI(1,("IP match, old UNC: %s new: %s",
tcon->treeName, uncName));
if (strncmp
(tcon->treeName, uncName,
MAX_TREE_SIZE) == 0) {
cFYI(1,
- ("Matched UNC, old user: %s == new: %s ?",
+ ("and old usr: %s new: %s",
tcon->treeName, uncName));
if (strncmp
(tcon->ses->userName,
userName,
MAX_USERNAME_SIZE) == 0) {
read_unlock(&GlobalSMBSeslock);
- return tcon;/* also matched user (smb session)*/
+ /* matched smb session
+ (user name */
+ return tcon;
}
}
}
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index ba4cbe9..914239d5 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -267,6 +267,10 @@
pCifsFile->invalidHandle = FALSE;
pCifsFile->closePend = FALSE;
init_MUTEX(&pCifsFile->fh_sem);
+ init_MUTEX(&pCifsFile->lock_sem);
+ INIT_LIST_HEAD(&pCifsFile->llist);
+ atomic_set(&pCifsFile->wrtPending,0);
+
/* set the following in open now
pCifsFile->pfile = file; */
write_lock(&GlobalSMBSeslock);