svn commit: r346153 - stable/12/sys/kern

[Konstantin Belousov]

Author: kib
Date: Fri Apr 12 15:00:42 2019
New Revision: 346153
URL: https://svnweb.freebsd.org/changeset/base/346153

Log:
  MFC r345955:
  vn_vmap_seekhole(): align running offset to the block boundary.

Modified:
  stable/12/sys/kern/vfs_vnops.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/kern/vfs_vnops.c
==============================================================================
--- stable/12/sys/kern/vfs_vnops.c	Fri Apr 12 14:59:28 2019	(r346152)
+++ stable/12/sys/kern/vfs_vnops.c	Fri Apr 12 15:00:42 2019	(r346153)
@@ -2163,7 +2163,8 @@ vn_bmap_seekhole(struct vnode *vp, u_long cmd, off_t *
 		goto unlock;
 	}
 	bsize = vp->v_mount->mnt_stat.f_iosize;
-	for (bn = noff / bsize; noff < va.va_size; bn++, noff += bsize) {
+	for (bn = noff / bsize; noff < va.va_size; bn++, noff += bsize -
+	    noff % bsize) {
 		error = VOP_BMAP(vp, bn, NULL, &bnp, NULL, NULL);
 		if (error == EOPNOTSUPP) {
 			error = ENOTTY;