[lvm-devel] LVM2 ./WHATS_NEW lib/metadata/lv_manip.c
agk at sourceware.org
agk at sourceware.org
Thu Mar 25 18:16:55 UTC 2010
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: agk at sourceware.org 2010-03-25 18:16:55
Modified files:
. : WHATS_NEW
lib/metadata : lv_manip.c
Log message:
Add some assertions to allocation code.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.1479&r2=1.1480
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/lv_manip.c.diff?cvsroot=lvm2&r1=1.214&r2=1.215
--- LVM2/WHATS_NEW 2010/03/25 11:48:54 1.1479
+++ LVM2/WHATS_NEW 2010/03/25 18:16:54 1.1480
@@ -1,5 +1,6 @@
Version 2.02.63 -
================================
+ Add some assertions to allocation code.
Introduce pv_area_used into allocation algorithm and add debug messages.
Add activation/monitoring to lvm.conf.
Add --monitor and --ignoremonitoring to lvcreate.
--- LVM2/lib/metadata/lv_manip.c 2010/03/25 02:40:09 1.214
+++ LVM2/lib/metadata/lv_manip.c 2010/03/25 18:16:55 1.215
@@ -600,6 +600,11 @@
if (segtype_is_virtual(segtype))
return ah;
+ if (!(area_count + log_area_count)) {
+ log_error(INTERNAL_ERROR "_alloc_init called for non-virtual segment with no disk space.");
+ return NULL;
+ }
+
if (!(ah->mem = dm_pool_create("allocation", 1024))) {
log_error("allocation pool creation failed");
return NULL;
@@ -744,6 +749,11 @@
uint32_t total_area_count = ah->area_count + (log_needs_allocating ? ah->log_area_count : 0);
struct alloced_area *aa;
+ if (!total_area_count) {
+ log_error(INTERNAL_ERROR "_alloc_parallel_area called without any allocation to do.");
+ return 1;
+ }
+
remaining = needed - *allocated;
area_len = remaining / ah->area_multiple;
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