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David Howells 9055fb0bb4 afs: Make it possible to find the volumes that are using a server ...

[ Upstream commit ca0e79a460 ]

Make it possible to find the afs_volume structs that are using an
afs_server struct to aid in breaking volume callbacks.

The way this is done is that each afs_volume already has an array of
afs_server_entry records that point to the servers where that volume might
be found.  An afs_volume backpointer and a list node is added to each entry
and each entry is then added to an RCU-traversable list on the afs_server
to which it points.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Stable-dep-of: add117e48d ("afs: Fix the server_list to unuse a displaced server rather than putting it")
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-03-13 12:50:56 +01:00

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