Merge tag 'ext4_for_linus-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:

- Fix an inconsistency in structure size on 32-bit platforms caused by
padding differences for the new EXT4_IOC_[GS]ET_TUNE_SB_PARAM ioctls

- Fix a buffer leak on the error path when dropping the refcount an
xattr value stored in an inode

- Fix missing locking on the error path for the file defragmentation
ioctl leading to a BUG

* tag 'ext4_for_linus-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix iloc.bh leak in ext4_xattr_inode_update_ref
ext4: add missing down_write_data_sem in mext_move_extent().
ext4: fix ext4_tune_sb_params padding

fs/ext4/move_extent.c

···
 
 repair_branches:
 	ret2 = 0;
+	ext4_double_down_write_data_sem(orig_inode, donor_inode);
 	r_len = ext4_swap_extents(handle, donor_inode, orig_inode,
 				  mext->donor_lblk, orig_map->m_lblk,
 				  *m_len, 0, &ret2);
+	ext4_double_up_write_data_sem(orig_inode, donor_inode);
 	if (ret2 || r_len != *m_len) {
 		ext4_error_inode_block(orig_inode, (sector_t)(orig_map->m_lblk),
 				       EIO, "Unable to copy data block, data will be lost!");

fs/ext4/xattr.c

···
 		ext4_error_inode(ea_inode, __func__, __LINE__, 0,
 			"EA inode %lu ref wraparound: ref_count=%lld ref_change=%d",
 			ea_inode->i_ino, ref_count, ref_change);
+		brelse(iloc.bh);
 		ret = -EFSCORRUPTED;
 		goto out;
 	}

include/uapi/linux/ext4.h

···
 	__u32 clear_feature_incompat_mask;
 	__u32 clear_feature_ro_compat_mask;
 	__u8  mount_opts[64];
-	__u8  pad[64];
+	__u8  pad[68];
 };
 
 #define EXT4_TUNE_FL_ERRORS_BEHAVIOR	0x00000001