On Wed, Apr 20, 2022 at 11:39:44AM +0200, Alexander Leidinger wrote:
| Quoting Doug Ambrisko <ambri...@ambrisko.com> (from Mon, 18 Apr 2022
| 16:32:38 -0700):
|
| > With nullfs, nocache and settings max vnodes to a low number I can
|
| Where is nocache documented? I don't see it in mount_nullfs(8),
| mount(8) or nullfs(5).
I didn't find it but it is in:
src/sys/fs/nullfs/null_vfsops.c: if (vfs_getopt(mp->mnt_optnew,
"nocache", NULL, NULL) == 0 ||
Also some file systems disable it via MNTK_NULL_NOCACHE
| I tried a nullfs mount with nocache and it doesn't show up in the
| output of "mount".
Yep, I saw that as well. I could tell by dropping into ddb and then
do a show mount on the FS and look at the count. That is why I added
the vnode count to mount -v so I could see the usage without dropping
into ddb.
Doug A.
