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The code which recovered from a modified directory situation did not check
for eof when re-caching the directory. This could cause it to loop forever if a directory was truncated.
This commit is contained in:
parent
138b38c068
commit
363880128c
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=24577
@ -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 1.32 1997/02/22 09:42:35 peter Exp $
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* $Id: nfs_bio.c,v 1.33 1997/03/09 10:21:26 bde Exp $
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*/
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@ -293,6 +293,10 @@ nfs_bioread(vp, uio, ioflag, cred)
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break;
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case VDIR:
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nfsstats.biocache_readdirs++;
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if (np->n_direofoffset
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&& uio->uio_offset >= np->n_direofoffset) {
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return (0);
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}
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lbn = uio->uio_offset / NFS_DIRBLKSIZ;
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on = uio->uio_offset & (NFS_DIRBLKSIZ - 1);
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bp = nfs_getcacheblk(vp, lbn, NFS_DIRBLKSIZ, p);
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@ -315,6 +319,9 @@ nfs_bioread(vp, uio, ioflag, cred)
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* offset cookies.
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*/
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for (i = 0; i <= lbn && !error; i++) {
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if (np->n_direofoffset
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&& (i * NFS_DIRBLKSIZ) >= np->n_direofoffset)
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return (0);
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bp = nfs_getcacheblk(vp, i, NFS_DIRBLKSIZ, p);
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if (!bp)
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return (EINTR);
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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 1.32 1997/02/22 09:42:35 peter Exp $
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* $Id: nfs_bio.c,v 1.33 1997/03/09 10:21:26 bde Exp $
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*/
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@ -293,6 +293,10 @@ nfs_bioread(vp, uio, ioflag, cred)
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break;
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case VDIR:
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nfsstats.biocache_readdirs++;
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if (np->n_direofoffset
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&& uio->uio_offset >= np->n_direofoffset) {
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return (0);
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}
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lbn = uio->uio_offset / NFS_DIRBLKSIZ;
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on = uio->uio_offset & (NFS_DIRBLKSIZ - 1);
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bp = nfs_getcacheblk(vp, lbn, NFS_DIRBLKSIZ, p);
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@ -315,6 +319,9 @@ nfs_bioread(vp, uio, ioflag, cred)
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* offset cookies.
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*/
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for (i = 0; i <= lbn && !error; i++) {
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if (np->n_direofoffset
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&& (i * NFS_DIRBLKSIZ) >= np->n_direofoffset)
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return (0);
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bp = nfs_getcacheblk(vp, i, NFS_DIRBLKSIZ, p);
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if (!bp)
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return (EINTR);
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