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* LVM2 ./WHATS_NEW lib/raid/raid.c libdm/libdevm ...
@ 2012-02-13 20:13 jbrassow
0 siblings, 0 replies; only message in thread
From: jbrassow @ 2012-02-13 20:13 UTC (permalink / raw)
To: lvm-devel, lvm2-cvs
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: jbrassow@sourceware.org 2012-02-13 20:13:40
Modified files:
. : WHATS_NEW
lib/raid : raid.c
libdm : libdevmapper.h libdm-deptree.c
Log message:
Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
It was not possible to pass down the DM_[FORCE|NO]SYNC flags to
'dm_tree_node_add_raid_target'. This meant that converting to 'raid1' from
'mirror' would cause a full resync. (It also meant that '--nosync' was
ineffective when creating a 'raid1' LV.)
I've taken the 'reserved' parameter in 'dm_tree_node_add_raid_target' and
used it for the "flags" parameter. Now it is possible to pass the sync
flags and any other flags that may come up.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.2292&r2=1.2293
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/raid/raid.c.diff?cvsroot=lvm2&r1=1.14&r2=1.15
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/libdm/libdevmapper.h.diff?cvsroot=lvm2&r1=1.177&r2=1.178
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/libdm/libdm-deptree.c.diff?cvsroot=lvm2&r1=1.156&r2=1.157
--- LVM2/WHATS_NEW 2012/02/13 14:23:40 1.2292
+++ LVM2/WHATS_NEW 2012/02/13 20:13:39 1.2293
@@ -1,5 +1,6 @@
Version 2.02.92 -
====================================
+ Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
Properly test buffer for unit check in units_to_bytes().
Add configure --with-systemdsystemunitdir.
Add check for allocation failure in _build_matcher().
--- LVM2/lib/raid/raid.c 2012/01/25 21:54:00 1.14
+++ LVM2/lib/raid/raid.c 2012/02/13 20:13:40 1.15
@@ -159,6 +159,7 @@
uint32_t *pvmove_mirror_count __attribute__((unused)))
{
uint32_t s;
+ uint64_t flags = 0;
uint64_t rebuilds = 0;
if (!seg->area_count) {
@@ -186,9 +187,12 @@
if (seg_lv(seg, s)->status & LV_REBUILD)
rebuilds |= 1 << s;
+ if (mirror_in_sync())
+ flags = DM_NOSYNC;
+
if (!dm_tree_node_add_raid_target(node, len, _raid_name(seg),
seg->region_size, seg->stripe_size,
- rebuilds, 0))
+ rebuilds, flags))
return_0;
return add_areas_line(dm, seg, node, 0u, seg->area_count);
--- LVM2/libdm/libdevmapper.h 2012/01/23 17:46:31 1.177
+++ LVM2/libdm/libdevmapper.h 2012/02/13 20:13:40 1.178
@@ -548,7 +548,7 @@
uint32_t region_size,
uint32_t stripe_size,
uint64_t rebuilds,
- uint64_t reserved2);
+ uint64_t flags);
/*
* Replicator operation mode
--- LVM2/libdm/libdm-deptree.c 2012/02/10 14:48:28 1.156
+++ LVM2/libdm/libdm-deptree.c 2012/02/13 20:13:40 1.157
@@ -2751,7 +2751,7 @@
uint32_t region_size,
uint32_t stripe_size,
uint64_t rebuilds,
- uint64_t reserved2)
+ uint64_t flags)
{
int i;
struct load_segment *seg = NULL;
@@ -2769,6 +2769,7 @@
seg->stripe_size = stripe_size;
seg->area_count = 0;
seg->rebuilds = rebuilds;
+ seg->flags = flags;
return 1;
}
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