Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French.

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix memory leaks in SMB2_open
  cifs: ensure that vol->username is not NULL before running strlen on it
  Clarify SMB2/SMB3 create context and add missing ones
  Do not send ClientGUID on SMB2.02 dialect
  cifs: Set client guid on per connection basis
  fs/cifs/netmisc.c: convert printk to pr_foo()
  fs/cifs/cifs.c: replace seq_printf by seq_puts
  Update cifs version number to 2.03
  fs: cifs: new helper: file_inode(file)
  cifs: fix potential races in cifs_revalidate_mapping
  cifs: new helper function: cifs_revalidate_mapping
  cifs: convert booleans in cifsInodeInfo to a flags field
  cifs: fix cifs_uniqueid_to_ino_t not to ever return 0

diff --cc fs/cifs/inode.c
index a22d667f1069e5eb8485d121f241725de732b8a9,9ff8df8b4d84afdabaef66a456ce427ea9a635c5..a174605f6afa56cb73a99335cc966f745a9ded6b
--- 1/fs/cifs/inode.c
--- 2/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@@ -1776,6 -1775,50 +1775,50 @@@ cifs_invalidate_mapping(struct inode *i
        return rc;
  }
  
 -      smp_mb__after_clear_bit();
+ /**
+  * cifs_wait_bit_killable - helper for functions that are sleeping on bit locks
+  * @word: long word containing the bit lock
+  */
+ static int
+ cifs_wait_bit_killable(void *word)
+ {
+       if (fatal_signal_pending(current))
+               return -ERESTARTSYS;
+       freezable_schedule_unsafe();
+       return 0;
+ }
+ 
+ int
+ cifs_revalidate_mapping(struct inode *inode)
+ {
+       int rc;
+       unsigned long *flags = &CIFS_I(inode)->flags;
+ 
+       rc = wait_on_bit_lock(flags, CIFS_INO_LOCK, cifs_wait_bit_killable,
+                               TASK_KILLABLE);
+       if (rc)
+               return rc;
+ 
+       if (test_and_clear_bit(CIFS_INO_INVALID_MAPPING, flags)) {
+               rc = cifs_invalidate_mapping(inode);
+               if (rc)
+                       set_bit(CIFS_INO_INVALID_MAPPING, flags);
+       }
+ 
+       clear_bit_unlock(CIFS_INO_LOCK, flags);
++      smp_mb__after_atomic();
+       wake_up_bit(flags, CIFS_INO_LOCK);
+ 
+       return rc;
+ }
+ 
+ int
+ cifs_zap_mapping(struct inode *inode)
+ {
+       set_bit(CIFS_INO_INVALID_MAPPING, &CIFS_I(inode)->flags);
+       return cifs_revalidate_mapping(inode);
+ }
+ 
  int cifs_revalidate_file_attr(struct file *filp)
  {
        int rc = 0;