On Mon, 2020-02-24 at 15:07 +0100, Sebastian Andrzej Siewior wrote: > vmw_fifo_ping_host() disables preemption around a test and a register > write via vmw_write(). The write function acquires a spinlock_t typed > lock which is not allowed in a preempt_disable()ed section on > PREEMPT_RT. This has been reported in the bugzilla. > > It has been explained by Thomas Hellstrom that this > preempt_disable()ed > section is not required for correctness. > > Remove the preempt_disable() section. > Hi, Sebastian, I suppose there isn't something like a preempt_disable_unless_RT() macro? If not, Reviewed-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx> I'll include in the next vmwgfx-next pull request Thanks, Thomas _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
