On Tue, 12 Apr 2022 at 19:11, John Baldwin <[email protected]> wrote: > > On 4/9/22 2:48 PM, Konstantin Belousov wrote: > > The branch main has been updated by kib: > > > > URL: > > https://cgit.FreeBSD.org/src/commit/?id=eca39864f702e577eba3bc7e9992d1e5e56eba58 > > > > commit eca39864f702e577eba3bc7e9992d1e5e56eba58 > > Author: Konstantin Belousov <[email protected]> > > AuthorDate: 2022-04-01 23:23:06 +0000 > > Commit: Konstantin Belousov <[email protected]> > > CommitDate: 2022-04-09 21:43:53 +0000 > > > > Add sysctl KERN_LOCKF > > > > reporting the shapshot of the active advisory locks. > > > > A new VFS ops method vfs_report_lockf if provided in the mount point > > op table. If it is NULL, as it is currently for all existing > > filesystems, vfs_report_lockf() function is used, which gathers > > information from the standard implementation inside kern/kern_lockf.c. > > > > Filesystems implementing its own locking (NFSv4 as example) can provide > > a custom implementation. > > > > Reviewed by: markj, rmacklem > > Sponsored by: The FreeBSD Foundation > > MFC after: 1 week > > Differential revision: https://reviews.freebsd.org/D34756 > > Nice! This is one of the things lsof has still groveled around in /dev/mem > directly for in the past. Hopefully the lsof developer will make use of this.
Yep - this is what prompted this effort. The goal is to provide proper interfaces for everything that lsof used to extract out of /dev/mem. https://reviews.freebsd.org/D34184 https://reviews.freebsd.org/D34323 https://github.com/lsof-org/lsof/pull/184
