tree 772fa3f7e42fc4a01c2a1a25876c0446fee1b0ba
parent 607566aeccde6ffccde5eef173ed0d277eec4a2d
author David Howells <dhowells@redhat.com> 1379683080 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1379715343 -0700

CacheFiles: Don't try to dump the index key if the cookie has been cleared

Don't try to dump the index key that distinguishes an object if netfs
data in the cookie the object refers to has been cleared (ie.  the
cookie has passed most of the way through
__fscache_relinquish_cookie()).

Since the netfs holds the index key, we can't get at it once the ->def
and ->netfs_data pointers have been cleared - and a NULL pointer
exception will ensue, usually just after a:

	CacheFiles: Error: Unexpected object collision

error is reported.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>