1 files changed, 9 insertions, 1 deletions

diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 6d2668fdc384..c094f58c7448 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -20,7 +20,7 @@ const struct file_operations reiserfs_dir_operations = {
         .read = generic_read_dir,
         .readdir = reiserfs_readdir,
         .fsync = reiserfs_dir_fsync,
-        .ioctl = reiserfs_ioctl,
+        .unlocked_ioctl = reiserfs_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl = reiserfs_compat_ioctl,
 #endif
@@ -174,14 +174,22 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
                                 // user space buffer is swapped out. At that time
                                 // entry can move to somewhere else
                                 memcpy(local_buf, d_name, d_reclen);
+
+                                /*
+                                 * Since filldir might sleep, we can release
+                                 * the write lock here for other waiters
+                                 */
+                                reiserfs_write_unlock(inode->i_sb);
                                 if (filldir
                                     (dirent, local_buf, d_reclen, d_off, d_ino,
                                      DT_UNKNOWN) < 0) {
+                                        reiserfs_write_lock(inode->i_sb);
                                         if (local_buf != small_buf) {
                                                 kfree(local_buf);
                                         }
                                         goto end;
                                 }
+                                reiserfs_write_lock(inode->i_sb);
                                 if (local_buf != small_buf) {
                                         kfree(local_buf);
                                 }