src/sys/dev/vn, branch release/4.1.1

MFC 1.112, zero out uio structure to avoid garbage pointers.

2000-05-15T16:50:33Z

Tested by: "Sean O'Connell"

Fix a panic when doing non-multiples of PAGE_SIZE or misaligned transfers

1999-12-28T07:32:34Z

to a swap backed vn device. OK'ed by: dillon

Introduce NDFREE (and remove VOP_ABORTOP)

1999-12-15T23:02:35Z

Lock reporting and assertion changes.

1999-12-11T16:13:02Z

* lockstatus() and VOP_ISLOCKED() gets a new process argument and a new return value: LK_EXCLOTHER, when the lock is held exclusively by another process. * The ASSERT_VOP_(UN)LOCKED family is extended to use what this gives them * Extend the vnode_if.src format to allow more exact specification than locked/unlocked. This commit should not do any semantic changes unless you are using DEBUG_VFS_LOCKS. Discussed with: grog, mch, peter, phk Reviewed by: peter

Remove the devsw magic from DEV_MODULE()

1999-11-07T10:01:17Z

useracc() the prequel:

1999-10-29T18:09:36Z

Merge the contents (less some trivial bordering the silly comments) of and into . This puts the #defines for the vm_inherit_t and vm_prot_t types next to their typedefs. This paves the road for the commit to follow shortly: change useracc() to use VM_PROT_{READ|WRITE} rather than B_{READ|WRITE} as argument.

Remove the D_NOCLUSTER[RW] options which were added because vn had

1999-09-30T07:11:30Z

problems. Now that Matt has fixed vn, this can go. The vn driver should have used d_maxio (now si_iosize_max) anyway.

Zap #include "vn.h" - it's not used

1999-09-27T00:53:24Z

If the request crosses EOF and bp->b_bcount is not a multiple of

1999-09-27T00:27:32Z

the sector size, the new value for bp->b_bcount was incorrectly calculated. Fixed. Submitted by: Tor.Egge@fast.no

Remove five now unused fields from struct cdevsw. They should never

1999-09-25T18:24:47Z

have been there in the first place. A GENERIC kernel shrinks almost 1k. Add a slightly different safetybelt under nostop for tty drivers. Add some missing FreeBSD tags