tree 081f76ef36a7ac43dd756dea1f9201caba7c821b
parent 68c708fd5e90f6d178c84bb7e641589eb2842319
author David S. Miller <davem@sunset.davemloft.net> 1177645154 -0700
committer David S. Miller <davem@sunset.davemloft.net> 1177645154 -0700

[AFS]: Eliminate cmpxchg() usage in vlocation code.

cmpxchg() is not available on every processor so can't
be used in generic code.

Replace with spinlock protection on the ->state changes,
wakeups, and wait loops.

Add what appears to be a missing wakeup on transition
to AFS_VL_VALID state in afs_vlocation_updater().

Signed-off-by: David S. Miller <davem@davemloft.net>