From: Jan Kara <jack@suse.cz>
Date: Tue, 24 Jan 2023 11:16:38 +0000 (+0100)
Subject: udf: Add handling of in-ICB files to udf_bmap()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=907c6c2ffa6a6d28f59db22ac0686ca3103c61d8;p=users%2Fjedix%2Flinux-maple.git

udf: Add handling of in-ICB files to udf_bmap()

Add detection of in-ICB files to udf_bmap() and return error in that
case. This will allow us o use single address_space_operations in UDF.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
---

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 094ac6f22c72e..c65a5d76d15a2 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -296,6 +296,10 @@ ssize_t udf_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 
 static sector_t udf_bmap(struct address_space *mapping, sector_t block)
 {
+	struct udf_inode_info *iinfo = UDF_I(mapping->host);
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+		return -EINVAL;
 	return generic_block_bmap(mapping, block, udf_get_block);
 }