Staging: Pohmelfs: Move parent lock to the place where we really have to send a looku...

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/pohmelfs/dir.c b/drivers/staging/pohmelfs/dir.c
index 7a41183..26da75c 100644 (file)
--- a/drivers/staging/pohmelfs/dir.c
+++ b/drivers/staging/pohmelfs/dir.c
@@ -389,11 +389,11 @@ static int pohmelfs_readdir(struct file *file, void *dirent, filldir_t filldir)
        dprintk("%s: parent: %llu, fpos: %llu, hash: %08lx.\n",
                        __func__, pi->ino, (u64)file->f_pos,
                        (unsigned long)file->private_data);
-
+#if 0
        err = pohmelfs_data_lock(pi, 0, ~0, POHMELFS_READ_LOCK);
        if (err)
                return err;
-
+#endif
        err = pohmelfs_sync_remote_dir(pi);
        if (err)
                return err;
@@ -513,10 +513,6 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 
        need_lock = pohmelfs_need_lock(parent, lock_type);
 
-       err = pohmelfs_data_lock(parent, 0, ~0, lock_type);
-       if (err)
-               goto out;
-
        str.hash = jhash(dentry->d_name.name, dentry->d_name.len, 0);
 
        mutex_lock(&parent->offset_lock);
@@ -525,7 +521,7 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
                ino = n->ino;
        mutex_unlock(&parent->offset_lock);
 
-       dprintk("%s: 1 ino: %lu, inode: %p, name: '%s', hash: %x, parent_state: %lx.\n",
+       dprintk("%s: start ino: %lu, inode: %p, name: '%s', hash: %x, parent_state: %lx.\n",
                        __func__, ino, inode, str.name, str.hash, parent->state);
 
        if (ino) {
@@ -534,7 +530,7 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
                        goto out;
        }
 
-       dprintk("%s: dir: %p, dir_ino: %llu, name: '%s', len: %u, dir_state: %lx, ino: %lu.\n",
+       dprintk("%s: no inode dir: %p, dir_ino: %llu, name: '%s', len: %u, dir_state: %lx, ino: %lu.\n",
                        __func__, dir, parent->ino,
                        str.name, str.len, parent->state, ino);
 
@@ -543,6 +539,10 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
                        goto out;
        }
 
+       err = pohmelfs_data_lock(parent, 0, ~0, lock_type);
+       if (err)
+               goto out;
+
        err = pohmelfs_lookup_single(parent, &str, ino);
        if (err)
                goto out;