freebsd-nq/sys/miscfs
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
..
deadfs Enabled Lite2 fix for reading from dead ttys. 1998-08-23 11:43:29 +00:00
devfs Cosmetic changes to the PAGE_XXX macros to make them consistent with 1998-09-04 08:06:57 +00:00
fdesc
fifofs
kernfs Fixed printf format errors. 1998-07-30 17:40:45 +00:00
nullfs Fixed printf format errors. 1998-07-30 17:40:45 +00:00
portal
procfs
specfs Add a new vnode op, VOP_FREEBLKS(), which filesystems can use to inform 1998-09-05 14:13:12 +00:00
umapfs Use [u]intptr_t instead of [u_]long for casts between pointers and 1998-08-16 01:21:52 +00:00
union