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From: agk@sourceware.org
To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org
Subject: LVM2/lib/metadata lv_manip.c pv_map.h
Date: Thu, 25 Mar 2010 02:40:00 -0000 [thread overview]
Message-ID: <20100325024009.6756.qmail@sourceware.org> (raw)
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: agk@sourceware.org 2010-03-25 02:40:09
Modified files:
lib/metadata : lv_manip.c pv_map.h
Log message:
improve a few comments in last check-in
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/lv_manip.c.diff?cvsroot=lvm2&r1=1.213&r2=1.214
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/pv_map.h.diff?cvsroot=lvm2&r1=1.11&r2=1.12
--- LVM2/lib/metadata/lv_manip.c 2010/03/25 02:31:49 1.213
+++ LVM2/lib/metadata/lv_manip.c 2010/03/25 02:40:09 1.214
@@ -929,7 +929,7 @@
return 1;
/*
- * Only used for cling and contiguous policies so its safe to say all
+ * Only used for cling and contiguous policies so it's safe to say all
* the available space is used.
*/
pvmatch->areas[s].pva = pvmatch->pva;
--- LVM2/lib/metadata/pv_map.h 2010/03/25 02:31:49 1.11
+++ LVM2/lib/metadata/pv_map.h 2010/03/25 02:40:09 1.12
@@ -39,7 +39,9 @@
* an allocation attempt, track the maximum number of extents that may
* need to be used as a particular parallel area. Several of these
* structs may reference the same pv_area, but 'used' may differ between
- * them.
+ * them. The sum of all the 'used' variables referring to the same
+ * pv_area may not exceed that area's count, so we cannot allocate the
+ * same extents twice.
*/
struct pv_area_used {
struct pv_area *pva;
reply other threads:[~2010-03-25 2:40 UTC|newest]
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