fs: dlm: use READ_ONCE for config var
authorAlexander Aring <aahringo@redhat.com>
Fri, 16 Jul 2021 20:22:35 +0000 (16:22 -0400)
committerDavid Teigland <teigland@redhat.com>
Mon, 19 Jul 2021 16:53:43 +0000 (11:53 -0500)
commitd921a23f3e1a703875db436cc7cdb4404cf1565f
tree7f4a7a8c466358efb26abdc5b21d0e9480b61ce3
parentfeb704bd17786c8ff52a49d7759b8ee4f3a5aaac
fs: dlm: use READ_ONCE for config var

This patch will use READ_ONCE to signal the compiler to read this
variable only one time. If we don't do that it could be that the
compiler read this value more than one time, because some optimizations,
from the configure data which might can be changed during this time.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
fs/dlm/lockspace.c