Date: Wed, 21 Jun 2017 18:19:27 +0000 (UTC) From: Andriy Gapon <avg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r320195 - head/usr.sbin/bhyveload Message-ID: <201706211819.v5LIJR2u061684@repo.freebsd.org>
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Author: avg Date: Wed Jun 21 18:19:27 2017 New Revision: 320195 URL: https://svnweb.freebsd.org/changeset/base/320195 Log: bhyveload: correctly query size of disks On FreeBSD fstat(2) works fine for querying sizes of plain files, but not so much for character devices. So, use DIOCGMEDIASIZE to try to get the correct size for disks and disk-like devices (e.g. zvols). PR: 220186 Reviewed by: tsoome, grehan MFC after: 1 week Modified: head/usr.sbin/bhyveload/bhyveload.c Modified: head/usr.sbin/bhyveload/bhyveload.c ============================================================================== --- head/usr.sbin/bhyveload/bhyveload.c Wed Jun 21 18:17:32 2017 (r320194) +++ head/usr.sbin/bhyveload/bhyveload.c Wed Jun 21 18:19:27 2017 (r320195) @@ -311,10 +311,12 @@ cb_diskioctl(void *arg, int unit, u_long cmd, void *da *(u_int *)data = 512; break; case DIOCGMEDIASIZE: - if (fstat(disk_fd[unit], &sb) == 0) - *(off_t *)data = sb.st_size; - else + if (fstat(disk_fd[unit], &sb) != 0) return (ENOTTY); + if (S_ISCHR(sb.st_mode) && + ioctl(disk_fd[unit], DIOCGMEDIASIZE, &sb.st_size) != 0) + return (ENOTTY); + *(off_t *)data = sb.st_size; break; default: return (ENOTTY);home | help
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