1 files changed, 5 insertions, 49 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 38491fd3871d..5e6d35804d73 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -35,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
+#include <linux/smp_lock.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
 #define DECLARE_GLOBALS_HERE
@@ -66,9 +67,6 @@ unsigned int sign_CIFS_PDUs = 1;
 extern struct task_struct *oplockThread; /* remove sparse warning */
 struct task_struct *oplockThread = NULL;
 /* extern struct task_struct * dnotifyThread; remove sparse warning */
-#ifdef CONFIG_CIFS_EXPERIMENTAL
-static struct task_struct *dnotifyThread = NULL;
-#endif
 static const struct super_operations cifs_super_ops;
 unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
 module_param(CIFSMaxBufSize, int, 0);
@@ -316,6 +314,7 @@ cifs_alloc_inode(struct super_block *sb)
         cifs_inode->clientCanCacheAll = false;
         cifs_inode->delete_pending = false;
         cifs_inode->vfs_inode.i_blkbits = 14;  /* 2**14 = CIFS_MAX_MSGSIZE */
+        cifs_inode->server_eof = 0;
 
         /* Can not set i_flags here - they get immediately overwritten
            to zero by the VFS */
@@ -532,6 +531,7 @@ static void cifs_umount_begin(struct super_block *sb)
         if (tcon == NULL)
                 return;
 
+        lock_kernel();
         read_lock(&cifs_tcp_ses_lock);
         if (tcon->tc_count == 1)
                 tcon->tidStatus = CifsExiting;
@@ -550,6 +550,7 @@ static void cifs_umount_begin(struct super_block *sb)
         }
 /* BB FIXME - finish add checks for tidStatus BB */
 
+        unlock_kernel();
         return;
 }
 
@@ -601,8 +602,7 @@ cifs_get_sb(struct file_system_type *fs_type,
 
         rc = cifs_read_super(sb, data, dev_name, flags & MS_SILENT ? 1 : 0);
         if (rc) {
-                up_write(&sb->s_umount);
-                deactivate_super(sb);
+                deactivate_locked_super(sb);
                 return rc;
         }
         sb->s_flags |= MS_ACTIVE;
@@ -1040,34 +1040,6 @@ static int cifs_oplock_thread(void *dummyarg)
         return 0;
 }
 
-#ifdef CONFIG_CIFS_EXPERIMENTAL
-static int cifs_dnotify_thread(void *dummyarg)
-{
-        struct list_head *tmp;
-        struct TCP_Server_Info *server;
-
-        do {
-                if (try_to_freeze())
-                        continue;
-                set_current_state(TASK_INTERRUPTIBLE);
-                schedule_timeout(15*HZ);
-                /* check if any stuck requests that need
-                   to be woken up and wakeq so the
-                   thread can wake up and error out */
-                read_lock(&cifs_tcp_ses_lock);
-                list_for_each(tmp, &cifs_tcp_ses_list) {
-                        server = list_entry(tmp, struct TCP_Server_Info,
-                                         tcp_ses_list);
-                        if (atomic_read(&server->inFlight))
-                                wake_up_all(&server->response_q);
-                }
-                read_unlock(&cifs_tcp_ses_lock);
-        } while (!kthread_should_stop());
-
-        return 0;
-}
-#endif
-
 static int __init
 init_cifs(void)
 {
@@ -1144,21 +1116,8 @@ init_cifs(void)
                 goto out_unregister_dfs_key_type;
         }
 
-#ifdef CONFIG_CIFS_EXPERIMENTAL
-        dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd");
-        if (IS_ERR(dnotifyThread)) {
-                rc = PTR_ERR(dnotifyThread);
-                cERROR(1, ("error %d create dnotify thread", rc));
-                goto out_stop_oplock_thread;
-        }
-#endif
-
         return 0;
 
-#ifdef CONFIG_CIFS_EXPERIMENTAL
- out_stop_oplock_thread:
-#endif
-        kthread_stop(oplockThread);
  out_unregister_dfs_key_type:
 #ifdef CONFIG_CIFS_DFS_UPCALL
         unregister_key_type(&key_type_dns_resolver);
@@ -1196,9 +1155,6 @@ exit_cifs(void)
         cifs_destroy_inodecache();
         cifs_destroy_mids();
         cifs_destroy_request_bufs();
-#ifdef CONFIG_CIFS_EXPERIMENTAL
-        kthread_stop(dnotifyThread);
-#endif
         kthread_stop(oplockThread);
 }