Module Name: src
Committed By: riastradh
Date: Mon Mar 28 12:37:27 UTC 2022
Modified Files:
src/sys/miscfs/specfs: spec_vnops.c
Log Message:
specfs: Take an I/O reference across bdev/cdev_open.
- Revoke is used to invalidate all prior access control checks when
device permissions are changing, so it must wait for .d_open to exit
so any new access must go through new access control checks.
- Revoke is used by vdevgone in xyz_detach to wait until all use of
the driver's data structures have completed before xyz_detach frees
them.
So we need to make sure spec_close waits for .d_open too.
To generate a diff of this commit:
cvs rdiff -u -r1.205 -r1.206 src/sys/miscfs/specfs/spec_vnops.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
