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2018-10-24afs: Fix callback handlingDavid Howells1-1/+1
In some circumstances, the callback interest pointer is NULL, so in such a case we can't dereference it when checking to see if the callback is broken. This causes an oops in some circumstances. Fix this by replacing the function that worked out the aggregate break counter with one that actually does the comparison, and then make that return true (ie. broken) if there is no callback interest as yet (ie. the pointer is NULL). Fixes: 68251f0a6818 ("afs: Fix whole-volume callback handling") Signed-off-by: David Howells <dhowells@redhat.com>
2018-10-24afs: Implement YFS support in the fs clientDavid Howells1-0/+2184
Implement support for talking to YFS-variant fileservers in the cache manager and the filesystem client. These implement upgraded services on the same port as their AFS services. YFS fileservers provide expanded capabilities over AFS. Signed-off-by: David Howells <dhowells@redhat.com>