freebsd-skq/sys/compat
adrian 4018955334 Reviewed by: jlemon
An initial tidyup of the mount() syscall and VFS mount code.

This code replaces the earlier work done by jlemon in an attempt to
make linux_mount() work.

* the guts of the mount work has been moved into vfs_mount().

* move `type', `path' and `flags' from being userland variables into being
  kernel variables in vfs_mount(). `data' remains a pointer into
  userspace.

* Attempt to verify the `type' and `path' strings passed to vfs_mount()
  aren't too long.

* rework mount() and linux_mount() to take the userland parameters
  (besides data, as mentioned) and pass kernel variables to vfs_mount().
  (linux_mount() already did this, I've just tidied it up a little more.)

* remove the copyin*() stuff for `path'. `data' still requires copyin*()
  since its a pointer into userland.

* set `mount->mnt_statf_mntonname' in vfs_mount() rather than in each
  filesystem.  This variable is generally initialised with `path', and
  each filesystem can override it if they want to.

* NOTE: f_mntonname is intiailised with "/" in the case of a root mount.
2001-03-01 21:00:17 +00:00
..
linprocfs Reviewed by: jlemon 2001-03-01 21:00:17 +00:00
linux Reviewed by: jlemon 2001-03-01 21:00:17 +00:00
netbsd Use queue macros. 2001-01-24 00:01:42 +00:00
pecoff Back out proc locking to protect p_ucred for obtaining additional 2001-01-27 00:01:31 +00:00
svr4 MFS: bring the consistent `compat_3_brand' support into -CURRENT 2001-02-24 22:20:11 +00:00