We do not get B_PHYS buffers here anymore. /dev/drum is long gone.
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e6ad40bb11
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=121191
@ -1295,31 +1295,9 @@ nfs_doio(struct buf *bp, struct ucred *cr, struct thread *td)
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/*
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* Historically, paging was done with physio, but no more.
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*/
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if (bp->b_flags & B_PHYS) {
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/*
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* ...though reading /dev/drum still gets us here.
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*/
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io.iov_len = uiop->uio_resid = bp->b_bcount;
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/* mapping was done by vmapbuf() */
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io.iov_base = bp->b_data;
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uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE;
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if (bp->b_iocmd == BIO_READ) {
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uiop->uio_rw = UIO_READ;
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nfsstats.read_physios++;
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error = nfs_readrpc(vp, uiop, cr);
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} else {
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int com;
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KASSERT(!(bp->b_flags & B_PHYS), ("B_PHYS in nfs_doio"));
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iomode = NFSV3WRITE_DATASYNC;
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uiop->uio_rw = UIO_WRITE;
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nfsstats.write_physios++;
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error = nfs_writerpc(vp, uiop, cr, &iomode, &com);
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}
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if (error) {
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bp->b_ioflags |= BIO_ERROR;
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bp->b_error = error;
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}
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} else if (bp->b_iocmd == BIO_READ) {
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if (bp->b_iocmd == BIO_READ) {
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io.iov_len = uiop->uio_resid = bp->b_bcount;
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io.iov_base = bp->b_data;
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uiop->uio_rw = UIO_READ;
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