(Hopefully) fix support for "large" files. Mostly cast block numbers to off_t
before they multiplied to block sizes.
This commit is contained in:
parent
508d06616f
commit
10db74e96d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=41791
@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* @(#)nfs_bio.c 8.9 (Berkeley) 3/30/95
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* $Id: nfs_bio.c,v 1.63 1998/11/09 07:00:14 peter Exp $
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* $Id: nfs_bio.c,v 1.64 1998/12/07 21:58:43 archie Exp $
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*/
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@ -277,7 +277,8 @@ nfs_bioread(vp, uio, ioflag, cred, getpages)
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int getpages;
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{
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register struct nfsnode *np = VTONFS(vp);
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register int biosize, diff, i;
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register int biosize, i;
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off_t diff;
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struct buf *bp = 0, *rabp;
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struct vattr vattr;
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struct proc *p;
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@ -432,7 +433,7 @@ nfs_bioread(vp, uio, ioflag, cred, getpages)
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bufsize = biosize;
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if ((off_t)(lbn + 1) * biosize > np->n_size &&
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(off_t)(lbn + 1) * biosize - np->n_size < biosize) {
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bufsize = np->n_size - lbn * biosize;
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bufsize = np->n_size - (off_t)lbn * biosize;
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bufsize = (bufsize + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
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}
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bp = nfs_getcacheblk(vp, lbn, bufsize, p);
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@ -757,8 +758,8 @@ nfs_write(ap)
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vnode_pager_setsize(vp, np->n_size);
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}
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bufsize = biosize;
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if ((lbn + 1) * biosize > np->n_size) {
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bufsize = np->n_size - lbn * biosize;
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if ((off_t)(lbn + 1) * biosize > np->n_size) {
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bufsize = np->n_size - (off_t)lbn * biosize;
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bufsize = (bufsize + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
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}
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bp = nfs_getcacheblk(vp, lbn, bufsize, p);
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@ -770,9 +771,8 @@ nfs_write(ap)
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}
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np->n_flag |= NMODIFIED;
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if ((bp->b_blkno * DEV_BSIZE) + bp->b_dirtyend > np->n_size) {
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bp->b_dirtyend = np->n_size - (bp->b_blkno * DEV_BSIZE);
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}
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if ((off_t)bp->b_blkno * DEV_BSIZE + bp->b_dirtyend > np->n_size)
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bp->b_dirtyend = np->n_size - (off_t)bp->b_blkno * DEV_BSIZE;
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/*
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* If the new write will leave a contiguous dirty
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@ -903,10 +903,10 @@ nfs_getcacheblk(vp, bn, size, p)
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} else
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bp = getblk(vp, bn, size, 0, 0);
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if( vp->v_type == VREG) {
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if (vp->v_type == VREG) {
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int biosize;
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biosize = mp->mnt_stat.f_iosize;
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bp->b_blkno = (bn * biosize) / DEV_BSIZE;
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bp->b_blkno = bn * (biosize / DEV_BSIZE);
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}
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return (bp);
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@ -1216,13 +1216,13 @@ nfs_doio(bp, cr, p)
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bp->b_error = error;
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}
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} else {
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if (((bp->b_blkno * DEV_BSIZE) + bp->b_dirtyend) > np->n_size)
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bp->b_dirtyend = np->n_size - (bp->b_blkno * DEV_BSIZE);
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if ((off_t)bp->b_blkno * DEV_BSIZE + bp->b_dirtyend > np->n_size)
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bp->b_dirtyend = np->n_size - (off_t)bp->b_blkno * DEV_BSIZE;
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if (bp->b_dirtyend > bp->b_dirtyoff) {
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io.iov_len = uiop->uio_resid = bp->b_dirtyend
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- bp->b_dirtyoff;
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uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE
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uiop->uio_offset = (off_t)bp->b_blkno * DEV_BSIZE
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+ bp->b_dirtyoff;
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io.iov_base = (char *)bp->b_data + bp->b_dirtyoff;
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uiop->uio_rw = UIO_WRITE;
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* @(#)nfs_bio.c 8.9 (Berkeley) 3/30/95
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* $Id: nfs_bio.c,v 1.63 1998/11/09 07:00:14 peter Exp $
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* $Id: nfs_bio.c,v 1.64 1998/12/07 21:58:43 archie Exp $
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*/
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@ -277,7 +277,8 @@ nfs_bioread(vp, uio, ioflag, cred, getpages)
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int getpages;
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{
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register struct nfsnode *np = VTONFS(vp);
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register int biosize, diff, i;
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register int biosize, i;
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off_t diff;
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struct buf *bp = 0, *rabp;
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struct vattr vattr;
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struct proc *p;
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@ -432,7 +433,7 @@ nfs_bioread(vp, uio, ioflag, cred, getpages)
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bufsize = biosize;
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if ((off_t)(lbn + 1) * biosize > np->n_size &&
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(off_t)(lbn + 1) * biosize - np->n_size < biosize) {
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bufsize = np->n_size - lbn * biosize;
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bufsize = np->n_size - (off_t)lbn * biosize;
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bufsize = (bufsize + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
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}
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bp = nfs_getcacheblk(vp, lbn, bufsize, p);
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@ -757,8 +758,8 @@ nfs_write(ap)
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vnode_pager_setsize(vp, np->n_size);
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}
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bufsize = biosize;
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if ((lbn + 1) * biosize > np->n_size) {
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bufsize = np->n_size - lbn * biosize;
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if ((off_t)(lbn + 1) * biosize > np->n_size) {
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bufsize = np->n_size - (off_t)lbn * biosize;
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bufsize = (bufsize + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
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}
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bp = nfs_getcacheblk(vp, lbn, bufsize, p);
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@ -770,9 +771,8 @@ nfs_write(ap)
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}
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np->n_flag |= NMODIFIED;
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if ((bp->b_blkno * DEV_BSIZE) + bp->b_dirtyend > np->n_size) {
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bp->b_dirtyend = np->n_size - (bp->b_blkno * DEV_BSIZE);
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}
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if ((off_t)bp->b_blkno * DEV_BSIZE + bp->b_dirtyend > np->n_size)
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bp->b_dirtyend = np->n_size - (off_t)bp->b_blkno * DEV_BSIZE;
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/*
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* If the new write will leave a contiguous dirty
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@ -903,10 +903,10 @@ nfs_getcacheblk(vp, bn, size, p)
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} else
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bp = getblk(vp, bn, size, 0, 0);
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if( vp->v_type == VREG) {
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if (vp->v_type == VREG) {
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int biosize;
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biosize = mp->mnt_stat.f_iosize;
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bp->b_blkno = (bn * biosize) / DEV_BSIZE;
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bp->b_blkno = bn * (biosize / DEV_BSIZE);
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}
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return (bp);
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@ -1216,13 +1216,13 @@ nfs_doio(bp, cr, p)
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bp->b_error = error;
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}
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} else {
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if (((bp->b_blkno * DEV_BSIZE) + bp->b_dirtyend) > np->n_size)
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bp->b_dirtyend = np->n_size - (bp->b_blkno * DEV_BSIZE);
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if ((off_t)bp->b_blkno * DEV_BSIZE + bp->b_dirtyend > np->n_size)
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bp->b_dirtyend = np->n_size - (off_t)bp->b_blkno * DEV_BSIZE;
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if (bp->b_dirtyend > bp->b_dirtyoff) {
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io.iov_len = uiop->uio_resid = bp->b_dirtyend
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- bp->b_dirtyoff;
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uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE
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uiop->uio_offset = (off_t)bp->b_blkno * DEV_BSIZE
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+ bp->b_dirtyoff;
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io.iov_base = (char *)bp->b_data + bp->b_dirtyoff;
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uiop->uio_rw = UIO_WRITE;
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