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Commit 3740d41e authored by Jan Kara's avatar Jan Kara Committed by Greg Kroah-Hartman
Browse files

udf: Restore i_lenAlloc when inode expansion fails 



commit ea8569194b43f0f01f0a84c689388542c7254a1f upstream.

When we fail to expand inode from inline format to a normal format, we
restore inode to contain the original inline formatting but we forgot to
set i_lenAlloc back. The mismatch between i_lenAlloc and i_size was then
causing further problems such as warnings and lost data down the line.

Reported-by: default avatarbutt3rflyh4ck <butterflyhuangxx@gmail.com>
CC: stable@vger.kernel.org
Fixes: 7e49b6f2 ("udf: Convert UDF to new truncate calling sequence")
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent aff4a58b

fs/udf/inode.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -311,6 +311,7 @@ int udf_expand_file_adinicb(struct inode *inode) 
		unlock_page(page);

		unlock_page(page);

		iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;

		iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;

		inode->i_data.a_ops = &udf_adinicb_aops;

		inode->i_data.a_ops = &udf_adinicb_aops;

		iinfo->i_lenAlloc = inode->i_size;

		up_write(&iinfo->i_data_sem);

		up_write(&iinfo->i_data_sem);

	}

	}

	put_page(page);

	put_page(page);