diff options
| author |   millert <millert@openbsd.org> | 2000-09-22 19:21:30 +0000 |
|---|---|---|
| committer | millert <millert@openbsd.org> | 2000-09-22 19:21:30 +0000 |
| commit | 40eac43e3f7b0928f41a5f1d264cd9e00fb0979b (patch) | |
| tree | 5c7958b16669440bdb7362e068e3c667b7d78d12 | |
| parent | Add Conexant modem (diff) | |
| download | wireguard-openbsd-40eac43e3f7b0928f41a5f1d264cd9e00fb0979b.tar.xz wireguard-openbsd-40eac43e3f7b0928f41a5f1d264cd9e00fb0979b.zip | |
If a cylinder group won't fit inside of one block, adjust secpercyl
and ntracks until it does, if possible. This allows one to newfs
disks with funky (usually BIOS-generated) geometries without cranking
the block size. This is really just a hack and a better solution
would be to fake the geometries of zone-recorded disks since secpercyl
is never accurate in that case anyway...
| -rw-r--r-- | sbin/newfs/mkfs.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sbin/newfs/mkfs.c b/sbin/newfs/mkfs.c index 619289a70e6..f90eb1d78dd 100644 --- a/sbin/newfs/mkfs.c +++ b/sbin/newfs/mkfs.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mkfs.c,v 1.13 1999/12/03 19:24:17 art Exp $ */ +/* $OpenBSD: mkfs.c,v 1.14 2000/09/22 19:21:30 millert Exp $ */ /* $NetBSD: mkfs.c,v 1.25 1995/06/18 21:35:38 cgd Exp $ */ /* @@ -38,7 +38,7 @@ #if 0 static char sccsid[] = "@(#)mkfs.c 8.3 (Berkeley) 2/3/94"; #else -static char rcsid[] = "$OpenBSD: mkfs.c,v 1.13 1999/12/03 19:24:17 art Exp $"; +static char rcsid[] = "$OpenBSD: mkfs.c,v 1.14 2000/09/22 19:21:30 millert Exp $"; #endif #endif /* not lint */ @@ -199,6 +199,7 @@ mkfs(pp, fsys, fi, fo) if (fssize <= 0) printf("preposterous size %d\n", fssize), exit(13); wtfs(fssize - 1, sectorsize, (char *)&sblock); +recalc: /* * collect and verify the sector and track info */ @@ -304,6 +305,12 @@ mkfs(pp, fsys, fi, fo) if (maxcontig > 1) sblock.fs_contigsumsize = MIN(maxcontig, FS_MAXCONTIG); mapcramped = 0; + /* A cylinder group *must* fit inside one block so force it if not. */ + if (CGSIZE(&sblock) > sblock.fs_bsize && secpercyl > 1024 && ntracks > 1) { + secpercyl /= 2; + ntracks /= 2; + goto recalc; + } while (CGSIZE(&sblock) > sblock.fs_bsize) { mapcramped = 1; if (sblock.fs_bsize < MAXBSIZE) { @@ -409,6 +416,11 @@ mkfs(pp, fsys, fi, fo) /* * Must ensure there is enough space to hold block map. */ + if (CGSIZE(&sblock) > sblock.fs_bsize && secpercyl > 1024 && ntracks > 1) { + secpercyl /= 2; + ntracks /= 2; + goto recalc; + } while (CGSIZE(&sblock) > sblock.fs_bsize) { mapcramped = 1; sblock.fs_cpg -= mincpc; |