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Commit 4071b913 authored by Jan Kara's avatar Jan Kara
Browse files

udf: Properly detect stale inodes 



NFS can easily ask for inodes that are already deleted. Currently UDF
happily returns such inodes which is a bug. Return -ESTALE if
udf_read_inode() is asked to read deleted inode.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 6d3d5e86

fs/udf/inode.c

+4 −2
Original line number Original line Diff line number Diff line
@@ -1435,8 +1435,10 @@ static int udf_read_inode(struct inode *inode) 
	read_unlock(&sbi->s_cred_lock);

	read_unlock(&sbi->s_cred_lock);





	link_count = le16_to_cpu(fe->fileLinkCount);

	link_count = le16_to_cpu(fe->fileLinkCount);

	if (!link_count)

	if (!link_count) {

		link_count = 1;

		ret = -ESTALE;

		goto out;

	}

	set_nlink(inode, link_count);

	set_nlink(inode, link_count);





	inode->i_size = le64_to_cpu(fe->informationLength);

	inode->i_size = le64_to_cpu(fe->informationLength);