freebsd-src/sys/fs/devfs
Mateusz Guzik a02cab334c devfs: introduce a per-dev lock to protect ->si_devsw
This allows bumping threadcount without taking the global devmtx lock.

In particular this eliminates contention on said lock while using bhyve
with multiple vms.

Reviewed by:	kib
Tested by:	markj
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22548
2019-11-30 16:46:19 +00:00
..
devfs.h sys/fs: further adoption of SPDX licensing ID tags. 2017-11-27 15:15:37 +00:00
devfs_devs.c devfs: introduce a per-dev lock to protect ->si_devsw 2019-11-30 16:46:19 +00:00
devfs_dir.c r326394 is calling malloc with M_WAITOK under a lock, revert for now 2017-11-30 14:06:54 +00:00
devfs_int.h devfs: introduce a per-dev lock to protect ->si_devsw 2019-11-30 16:46:19 +00:00
devfs_rule.c sys/fs: further adoption of SPDX licensing ID tags. 2017-11-27 15:15:37 +00:00
devfs_vfsops.c devfs: use MNTK_NOMSYNC 2019-10-13 15:41:47 +00:00
devfs_vnops.c vfs: change si_usecount management to count used vnodes 2019-11-20 12:05:59 +00:00