phk a246e10f55 Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new ... field in struct buf: b_iocmd. The b_iocmd is enforced to have exactly one bit set. B_WRITE was bogusly defined as zero giving rise to obvious coding mistakes. Also eliminate the redundant struct buf flag B_CALL, it can just as efficiently be done by comparing b_iodone to NULL. Should you get a panic or drop into the debugger, complaining about "b_iocmd", don't continue. It is likely to write on your disk where it should have been reading. This change is a step in the direction towards a stackable BIO capability. A lot of this patch were machine generated (Thanks to style(9) compliance!) Vinum users: Greg has not had time to test this yet, be careful.		2000-03-20 10:44:49 +00:00
..
union_subr.c	Introduce NDFREE (and remove VOP_ABORTOP)	1999-12-15 23:02:35 +00:00
union_vfsops.c	Second pass commit to introduce new ACL and Extended Attribute system	1999-12-19 06:08:07 +00:00
union_vnops.c	Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new	2000-03-20 10:44:49 +00:00
union.h	Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"	1999-12-29 05:07:58 +00:00