the security checks when mounting a device (VOP_ACCESS() + kauth(9) call)).
Proposed with no objections on tech-kern@:
http://mail-index.netbsd.org/tech-kern/2009/04/20/msg004859.html
The vnode is always expected to be locked, so no locking is done outside
the file-system code.
allow CD-ROM/DVD-ROM/DB-ROM drives to read the media while still allowing them
to be appended later. It can also be seen as a way to make mountable
snapshots.
its currently still misbehaving. If supported later, it would allow one or a
series of sessions on a sequential recordable media to be ignored as if they
never were created.
Also fix a small comment: its not the direct but the bootstrap disc strategy
that we close down.
writable tracks on session opening. Note that this an optionally implemented
feature and thus no error will be generated if it fails; the drive will most
likely autorepair it.
of when working deep into the directory tree it can reliably be reget and
marked correctly as the FS root.
Fixed pwd(1) lock panic and possible endless loop in other tools.
#include "opt_quota.h" which do exactly nothing. Speeds up kernel
compilation by 1.375*10^-20001 seconds. But leave the most moxious
comment in msdosfs_vfsops untouched.
1) Enhance write speed significantly on RMW media like CD-RW, DVD-RW but also
on the DVD+RW and all other ECC blocked media. Significant speedups of access
to the device for say compilation on the DVD. Streaming copy is also still at
maximum speed though vast amounts of directory copy work can show side effects
that appear it to slow down but are actually logical when you consider that
most small files are embedded into the descriptors itself.
2) explicit wait for the created RMW thread to spinup
for now since its a lot slower than `rmw' access.
For archs that have trouble with `rmw' for whatever reason can so use it as a
scapegoat to allways mount savely rdonly though slower.
old somewhat naive selection scheme that didn't allow different allocation
settings for nodes, directory information (FIDs) and data.
Also fix some curious side-effects of atime updates on RMW devices.
it could result in theory result in descriptor trashing.
On the performance side, it would try to fixup *every* descriptor even if
it wasn't an internally allocated one. Performance loss wasn't that big but
every bit helps.
preliminary Metadata partition write support but its disabled still since
its not finished yet and not functioning correctly. All other formats are
checked and should work fine.
