Author: cem Date: Mon Dec 30 01:40:59 2019 New Revision: 356195 URL: https://svnweb.freebsd.org/changeset/base/356195
Log: virtio_random(4): Drop no longer needed unload kludge After r356194, source deregistration no longer races with concurrent use. Reviewed by: bryanv, markm Differential Revision: https://reviews.freebsd.org/D22490 Modified: head/sys/dev/virtio/random/virtio_random.c Modified: head/sys/dev/virtio/random/virtio_random.c ============================================================================== --- head/sys/dev/virtio/random/virtio_random.c Mon Dec 30 01:38:19 2019 (r356194) +++ head/sys/dev/virtio/random/virtio_random.c Mon Dec 30 01:40:59 2019 (r356195) @@ -176,14 +176,6 @@ vtrnd_detach(device_t dev) random_source_deregister(&random_vtrnd); atomic_store_explicit(&g_vtrnd_softc, NULL, memory_order_release); - - /* - * Unfortunately, deregister does not guarantee our source callback - * will not be invoked after it returns. Use a kludge to prevent some, - * but not all, possible races. - */ - tsleep_sbt(&g_vtrnd_softc, 0, "vtrnddet", mstosbt(50), 0, C_HARDCLOCK); - return (0); } _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
