Zach Brown d2a1b915fc scoutfs: publish refresh_gen from dlmglue ...

In addition to setting NEEDS_REFRESH when locks are acquired out of NL,
we now also give them a refresh_gen counter that is increased by
incrementing a long lived counter in the super.

This gives callers a strictly increasing read-only indication that the
lock has changed.  They don't have to serialize users to clear
NEEDS_REFRESH and transfer it to some other serialized state.

scoutfs will use with the multiple inodes that are refreshed with
respect to the lock's refresh_gen.

Signed-off-by: Zach Brown <zab@versity.com>

2017-08-30 10:37:59 -07:00

kmod

scoutfs: publish refresh_gen from dlmglue

2017-08-30 10:37:59 -07:00

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