Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs changes from Al Viro.
 "A lot of misc stuff.  The obvious groups:
   * Miklos' atomic_open series; kills the damn abuse of
     ->d_revalidate() by NFS, which was the major stumbling block for
     all work in that area.
   * ripping security_file_mmap() and dealing with deadlocks in the
     area; sanitizing the neighborhood of vm_mmap()/vm_munmap() in
     general.
   * ->encode_fh() switched to saner API; insane fake dentry in
     mm/cleancache.c gone.
   * assorted annotations in fs (endianness, __user)
   * parts of Artem's ->s_dirty work (jff2 and reiserfs parts)
   * ->update_time() work from Josef.
   * other bits and pieces all over the place.

  Normally it would've been in two or three pull requests, but
  signal.git stuff had eaten a lot of time during this cycle ;-/"

Fix up trivial conflicts in Documentation/filesystems/vfs.txt (the
'truncate_range' inode method was removed by the VM changes, the VFS
update adds an 'update_time()' method), and in fs/btrfs/ulist.[ch] (due
to sparse fix added twice, with other changes nearby).

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (95 commits)
  nfs: don't open in ->d_revalidate
  vfs: retry last component if opening stale dentry
  vfs: nameidata_to_filp(): don't throw away file on error
  vfs: nameidata_to_filp(): inline __dentry_open()
  vfs: do_dentry_open(): don't put filp
  vfs: split __dentry_open()
  vfs: do_last() common post lookup
  vfs: do_last(): add audit_inode before open
  vfs: do_last(): only return EISDIR for O_CREAT
  vfs: do_last(): check LOOKUP_DIRECTORY
  vfs: do_last(): make ENOENT exit RCU safe
  vfs: make follow_link check RCU safe
  vfs: do_last(): use inode variable
  vfs: do_last(): inline walk_component()
  vfs: do_last(): make exit RCU safe
  vfs: split do_lookup()
  Btrfs: move over to use ->update_time
  fs: introduce inode operation ->update_time
  reiserfs: get rid of resierfs_sync_super
  reiserfs: mark the superblock as dirty a bit later
  ...

1 files changed, 7 insertions, 12 deletions

diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index 745db42528d5..322216a5f0dd 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -177,21 +177,23 @@ bail:
 	return parent;
 }
 
-static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
-			   int connectable)
+static int ocfs2_encode_fh(struct inode *inode, u32 *fh_in, int *max_len,
+			   struct inode *parent)
 {
-	struct inode *inode = dentry->d_inode;
 	int len = *max_len;
 	int type = 1;
 	u64 blkno;
 	u32 generation;
 	__le32 *fh = (__force __le32 *) fh_in;
 
+#ifdef TRACE_HOOKS_ARE_NOT_BRAINDEAD_IN_YOUR_OPINION
+#error "You go ahead and fix that mess, then.  Somehow"
 	trace_ocfs2_encode_fh_begin(dentry, dentry->d_name.len,
 				    dentry->d_name.name,
 				    fh, len, connectable);
+#endif
 
-	if (connectable && (len < 6)) {
+	if (parent && (len < 6)) {
 		*max_len = 6;
 		type = 255;
 		goto bail;
@@ -211,12 +213,7 @@ static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
 	fh[1] = cpu_to_le32((u32)(blkno & 0xffffffff));
 	fh[2] = cpu_to_le32(generation);
 
-	if (connectable && !S_ISDIR(inode->i_mode)) {
-		struct inode *parent;
-
-		spin_lock(&dentry->d_lock);
-
-		parent = dentry->d_parent->d_inode;
+	if (parent) {
 		blkno = OCFS2_I(parent)->ip_blkno;
 		generation = parent->i_generation;
 
@@ -224,8 +221,6 @@ static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len,
 		fh[4] = cpu_to_le32((u32)(blkno & 0xffffffff));
 		fh[5] = cpu_to_le32(generation);
 
-		spin_unlock(&dentry->d_lock);
-
 		len = 6;
 		type = 2;