Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: add missing ext4_journal_stop()
  ext4: ext4_find_next_zero_bit needs an aligned address on some arch
  ext4: set EXT4_EXTENTS_FL only for directory and regular files
  ext4: Don't mark filesystem error if fallocate fails
  ext4: Fix BUG when writing to an unitialized extent
  ext4: Don't use ext4_dec_count() if not needed
  ext4: modify block allocation algorithm for the last group
  ext4: Don't claim block from group which has corrupt bitmap
  ext4: Get journal write access before modifying the extent tree
  ext4: Fix memory and buffer head leak in callers to ext4_ext_find_extent()
  ext4: Don't leave behind a half-created inode if ext4_mkdir() fails
  ext4: Fix kernel BUG at fs/ext4/mballoc.c:910!
  ext4: Fix locking hierarchy violation in ext4_fallocate()
  Remove incorrect BKL comments in ext4

1 files changed, 15 insertions, 7 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index da18a74b966a..8036b9b5376b 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -702,7 +702,12 @@ got:
         ei->i_dir_start_lookup = 0;
         ei->i_disksize = 0;
 
-        ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL;
+        /*
+         * Don't inherit extent flag from directory. We set extent flag on
+         * newly created directory and file only if -o extent mount option is
+         * specified
+         */
+        ei->i_flags = EXT4_I(dir)->i_flags & ~(EXT4_INDEX_FL|EXT4_EXTENTS_FL);
         if (S_ISLNK(mode))
                 ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
         /* dirsync only applies to directories */
@@ -745,12 +750,15 @@ got:
                 goto fail_free_drop;
         }
         if (test_opt(sb, EXTENTS)) {
-                EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
-                ext4_ext_tree_init(handle, inode);
-                err = ext4_update_incompat_feature(handle, sb,
-                                                EXT4_FEATURE_INCOMPAT_EXTENTS);
-                if (err)
-                        goto fail;
+                /* set extent flag only for directory and file */
+                if (S_ISDIR(mode) || S_ISREG(mode)) {
+                        EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
+                        ext4_ext_tree_init(handle, inode);
+                        err = ext4_update_incompat_feature(handle, sb,
+                                        EXT4_FEATURE_INCOMPAT_EXTENTS);
+                        if (err)
+                                goto fail;
+                }
         }
 
         ext4_debug("allocating inode %lu\n", inode->i_ino);