freebsd-nq/sys/ufs
Poul-Henning Kamp 0375c9f2b8 Add a new vnode op, VOP_FREEBLKS(), which filesystems can use to inform
device drivers about sectors no longer in use.

Device-drivers receive the call through d_strategy, if they have
D_CANFREE in d_flags.

This allows flash based devices to erase the sectors and avoid
pointlessly carrying them around in compactions.

Reviewed by:	Kirk Mckusick, bde
Sponsored by:	M-Systems (www.m-sys.com)
1998-09-05 14:13:12 +00:00
..
ffs Add a new vnode op, VOP_FREEBLKS(), which filesystems can use to inform 1998-09-05 14:13:12 +00:00
mfs Fixed printf format errors. 1998-07-11 07:46:16 +00:00
ufs Quick fix for breakage of read clustering on non-IDE drives. Read 1998-08-18 03:54:39 +00:00