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Remove attempt to use files with holes; it's prone to deadlocks.

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This commit is contained in:
pk 1997-06-08 15:59:41 +00:00
parent 6c88c4ca23
commit 5521477455
1 changed files with 4 additions and 21 deletions
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21
sys/dev/vnd.c
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@ -1,4 +1,4 @@
/* $NetBSD: vnd.c,v 1.39 1997/06/08 15:55:34 pk Exp $ */
/* $NetBSD: vnd.c,v 1.40 1997/06/08 15:59:41 pk Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -313,23 +313,8 @@ vndstrategy(bp)
error = VOP_BMAP(vnd->sc_vp, bn / bsize, &vp, &nbn, &nra);
VOP_UNLOCK(vnd->sc_vp);
#define VND_FILLHOLES
#ifdef VND_FILLHOLES
if (error == 0 && (long)nbn == -1) {
int rw = (flags & B_READ) ? UIO_READ : UIO_WRITE;
sz = resid;
error = vn_rdwr(rw, vnd->sc_vp, addr, sz,
bn, UIO_SYSSPACE,
IO_SYNC | IO_NODELOCKED,
vnd->sc_cred, &resid, bp->b_proc);
s = splbio();
bp->b_resid -= (sz - resid);
splx(s);
}
#else
if (error == 0 && (long)nbn == -1)
error = EIO;
#endif
/*
* If there was an error or a hole in the file...punt.
@ -340,14 +325,12 @@ vndstrategy(bp)
* XXX we could deal with holes here but it would be
* a hassle (in the write case).
*/
if (error || (long)nbn == -1) {
if (error) {
vnx->vx_error = error;
s = splbio();
if (vnx->vx_pending == 0) {
if (error) {
bp->b_error = error;
bp->b_flags |= B_ERROR;
}
putvndxfer(vnx);
biodone(bp);
}