[src/trunk]: src/usr.sbin/sysinst When extending a partition (to fill the tot...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1c023e802e9b
branches:  trunk
changeset: 971977:1c023e802e9b
user:      martin <martin%NetBSD.org@localhost>
date:      Mon May 11 17:40:50 2020 +0000

description:
When extending a partition (to fill the total disk size) do respect
size limits.
Do not suggest a size limited partition for extension by default.

diffstat:

 usr.sbin/sysinst/bsddisklabel.c |  30 ++++++++++++++++++++++++------
 1 files changed, 24 insertions(+), 6 deletions(-)

diffs (59 lines):

diff -r 0d841e379787 -r 1c023e802e9b usr.sbin/sysinst/bsddisklabel.c
--- a/usr.sbin/sysinst/bsddisklabel.c   Mon May 11 17:27:48 2020 +0000
+++ b/usr.sbin/sysinst/bsddisklabel.c   Mon May 11 17:40:50 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bsddisklabel.c,v 1.40 2020/05/11 15:27:41 martin Exp $ */
+/*     $NetBSD: bsddisklabel.c,v 1.41 2020/05/11 17:40:50 martin Exp $ */
 
 /*
  * Copyright 1997 Piermont Information Systems Inc.
@@ -1131,15 +1131,23 @@
                dump_space = roundup(dump_space, align);
                if (free_space > dump_space*2)
                        dump_space *= 2;
-               if (free_space > dump_space)
+               if (free_space > dump_space) {
                        wanted->infos[root].size += dump_space;
+                       free_space -= dump_space;
+               }
        }
        if (wanted->infos[root].limit > 0 &&
-           wanted->infos[root].size > wanted->infos[root].limit) {
+           (wanted->infos[root].cur_start + wanted->infos[root].size >
+               wanted->infos[root].limit ||
+           (wanted->infos[root].flags & PUIFLAG_EXTEND &&
+           (wanted->infos[root].cur_start + wanted->infos[root].size
+            + free_space > wanted->infos[root].limit)))) {
                if (usr >= wanted->num && def_usr < wanted->num) {
                        usr = def_usr;
                        wanted->infos[usr].size = wanted->infos[root].size
                            - wanted->infos[root].limit;
+                       if (wanted->infos[usr].size <= 0)
+                               wanted->infos[usr].size = 1;
                        wanted->infos[root].size =
                            wanted->infos[root].limit;
                        if (wanted->infos[root].flags & PUIFLAG_EXTEND) {
@@ -1364,10 +1372,20 @@
 
        /*
         * Expand the pool partition (or shrink, if we overran),
+        * but check size limits.
         */
-       if (exp_ndx < wanted->num)
-               wanted->infos[exp_ndx].size +=
-                   parts->free_space - planned_space;
+       if (exp_ndx < wanted->num) {
+               if (wanted->infos[exp_ndx].limit > 0 &&
+                   (wanted->infos[exp_ndx].size + parts->free_space
+                   - planned_space) > wanted->infos[exp_ndx].limit) {
+                       wanted->infos[exp_ndx].size =
+                           wanted->infos[exp_ndx].limit
+                           - wanted->infos[exp_ndx].cur_start;
+               } else {
+                       wanted->infos[exp_ndx].size +=
+                           parts->free_space - planned_space;
+               }
+       }
 
        /*
         * Now it gets tricky: we want the wanted partitions in order