Re: [PATCH 4.19 325/639] afs: Fix AFS file locking to allow fine grained locks

On Fri 2020-01-24 10:28:15, Greg Kroah-Hartman wrote:

From: David Howells dhowells@redhat.com

[ Upstream commit 68ce801ffd82e72d5005ab5458e8b9e59f24d9cc ]

Fix AFS file locking to allow fine grained locks as some applications, such as firefox, won't work if they can't take such locks on certain state files

• thereby preventing the use of kAFS to distribute a home directory.

Note that this cannot be made completely functional as the protocol only has provision for whole-file locks, so there exists the possibility

Is this suitable for -stable?

"AFS does not support fine-grained locks" is fine and easy to understand. "AFS pretends it supports locks and hopes for the best for benefit of firefox"... may be good idea for mainline, but I don't think it matches -stable criteria.

Best regards, Pavel