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Fix mirror log name construction during lvconvert. (2.02.30)

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Make monitor_dev_for_events recurse through the stack of LVs.
Clean up some more compiler warnings.
Add mirror names test script.
This commit is contained in:
Alasdair Kergon 2008-01-31 12:19:36 +00:00
parent 6930f60c06
commit 2b83c80593
15 changed files with 325 additions and 41 deletions
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3
WHATS_NEW
View File

@ -1,5 +1,8 @@
Version 2.02.33 -
===================================
Fix mirror log name construction during lvconvert. (2.02.30)
Make monitor_dev_for_events recurse through the stack of LVs.
Clean up some more compiler warnings.
Some whitespace tidy-ups.
Use stack return macros throughout.
Rely upon internally-cached PV labels while corresponding VG lock is held.

22
daemons/dmeventd/plugins/mirror/dmeventd_mirror.c
View File

@ -125,8 +125,9 @@ out_parse:
return ME_IGNORE;
}
static void _temporary_log_fn(int level, const char *file,
int line, const char *format)
static void _temporary_log_fn(int level, const char *file __attribute((unused)),
int line __attribute((unused)),
const char *format)
{
if (!strncmp(format, "WARNING: ", 9) && (level < 5))
syslog(LOG_CRIT, "%s", format);
@ -164,7 +165,8 @@ static int _remove_failed_devices(const char *device)
return (r == 1) ? 0 : -1;
}
void process_event(struct dm_task *dmt, enum dm_event_mask event,
void process_event(struct dm_task *dmt,
enum dm_event_mask event __attribute((unused)),
void **unused __attribute((unused)))
{
void *next = NULL;
@ -222,8 +224,11 @@ void process_event(struct dm_task *dmt, enum dm_event_mask event,
pthread_mutex_unlock(&_event_mutex);
}
int register_device(const char *device, const char *uuid, int major, int minor,
void **unused __attribute((unused)))
int register_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **unused __attribute((unused)))
{
int r = 0;
@ -259,8 +264,11 @@ out:
return r;
}
int unregister_device(const char *device, const char *uuid, int major, int minor,
void **unused __attribute((unused)))
int unregister_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **unused __attribute((unused)))
{
pthread_mutex_lock(&_register_mutex);

23
daemons/dmeventd/plugins/snapshot/dmeventd_snapshot.c
View File

@ -54,8 +54,10 @@ struct snap_status {
*/
static pthread_mutex_t _event_mutex = PTHREAD_MUTEX_INITIALIZER;
static void _temporary_log_fn(int level, const char *file,
int line, const char *format)
static void _temporary_log_fn(int level,
const char *file __attribute((unused)),
int line __attribute((unused)),
const char *format)
{
if (!strncmp(format, "WARNING: ", 9) && (level < 5))
syslog(LOG_CRIT, "%s", format);
@ -115,7 +117,8 @@ fail:
dm_event_handler_destroy(dmevh);
}
void process_event(struct dm_task *dmt, enum dm_event_mask event,
void process_event(struct dm_task *dmt,
enum dm_event_mask event __attribute((unused)),
void **private)
{
void *next = NULL;
@ -161,8 +164,11 @@ out:
pthread_mutex_unlock(&_event_mutex);
}
int register_device(const char *device, const char *uuid, int major, int minor,
void **private)
int register_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **private)
{
int r = 0;
int *percent_warning = (int*)private;
@ -201,8 +207,11 @@ out:
return r;
}
int unregister_device(const char *device, const char *uuid, int major, int minor,
void **unused __attribute((unused)))
int unregister_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **unused __attribute((unused)))
{
pthread_mutex_lock(&_register_mutex);

22
dmeventd/mirror/dmeventd_mirror.c
View File

@ -125,8 +125,9 @@ out_parse:
return ME_IGNORE;
}
static void _temporary_log_fn(int level, const char *file,
int line, const char *format)
static void _temporary_log_fn(int level, const char *file __attribute((unused)),
int line __attribute((unused)),
const char *format)
{
if (!strncmp(format, "WARNING: ", 9) && (level < 5))
syslog(LOG_CRIT, "%s", format);
@ -164,7 +165,8 @@ static int _remove_failed_devices(const char *device)
return (r == 1) ? 0 : -1;
}
void process_event(struct dm_task *dmt, enum dm_event_mask event,
void process_event(struct dm_task *dmt,
enum dm_event_mask event __attribute((unused)),
void **unused __attribute((unused)))
{
void *next = NULL;
@ -222,8 +224,11 @@ void process_event(struct dm_task *dmt, enum dm_event_mask event,
pthread_mutex_unlock(&_event_mutex);
}
int register_device(const char *device, const char *uuid, int major, int minor,
void **unused __attribute((unused)))
int register_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **unused __attribute((unused)))
{
int r = 0;
@ -259,8 +264,11 @@ out:
return r;
}
int unregister_device(const char *device, const char *uuid, int major, int minor,
void **unused __attribute((unused)))
int unregister_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **unused __attribute((unused)))
{
pthread_mutex_lock(&_register_mutex);

23
dmeventd/snapshot/dmeventd_snapshot.c
View File

@ -54,8 +54,10 @@ struct snap_status {
*/
static pthread_mutex_t _event_mutex = PTHREAD_MUTEX_INITIALIZER;
static void _temporary_log_fn(int level, const char *file,
int line, const char *format)
static void _temporary_log_fn(int level,
const char *file __attribute((unused)),
int line __attribute((unused)),
const char *format)
{
if (!strncmp(format, "WARNING: ", 9) && (level < 5))
syslog(LOG_CRIT, "%s", format);
@ -115,7 +117,8 @@ fail:
dm_event_handler_destroy(dmevh);
}
void process_event(struct dm_task *dmt, enum dm_event_mask event,
void process_event(struct dm_task *dmt,
enum dm_event_mask event __attribute((unused)),
void **private)
{
void *next = NULL;
@ -161,8 +164,11 @@ out:
pthread_mutex_unlock(&_event_mutex);
}
int register_device(const char *device, const char *uuid, int major, int minor,
void **private)
int register_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **private)
{
int r = 0;
int *percent_warning = (int*)private;
@ -201,8 +207,11 @@ out:
return r;
}
int unregister_device(const char *device, const char *uuid, int major, int minor,
void **unused __attribute((unused)))
int unregister_device(const char *device,
const char *uuid __attribute((unused)),
int major __attribute((unused)),
int minor __attribute((unused)),
void **unused __attribute((unused)))
{
pthread_mutex_lock(&_register_mutex);

14
lib/activate/activate.c
View File

@ -679,6 +679,7 @@ int monitor_dev_for_events(struct cmd_context *cmd,
struct list *tmp, *snh, *snht;
struct lv_segment *seg;
int (*monitor_fn) (struct lv_segment *s, int e);
uint32_t s;
/* skip dmeventd code altogether */
if (dmeventd_monitor_mode() == DMEVENTD_MONITOR_IGNORE)
@ -715,6 +716,19 @@ int monitor_dev_for_events(struct cmd_context *cmd,
list_iterate(tmp, &lv->segments) {
seg = list_item(tmp, struct lv_segment);
/* Recurse for AREA_LV */
for (s = 0; s < seg->area_count; s++) {
if (seg_type(seg, s) != AREA_LV)
continue;
if (!monitor_dev_for_events(cmd, seg_lv(seg, s),
monitor)) {
log_error("Failed to %smonitor %s",
monitor ? "" : "un",
seg_lv(seg, s)->name);
r = 0;
}
}
if (!seg_monitored(seg) || (seg->status & PVMOVE))
continue;

3
lib/filters/filter-md.c
View File

@ -19,7 +19,8 @@
#ifdef linux
static int _ignore_md(struct dev_filter *f, struct device *dev)
static int _ignore_md(struct dev_filter *f __attribute((unused)),
struct device *dev)
{
int ret;

33
lib/metadata/mirror.c
View File

@ -1182,7 +1182,7 @@ static struct logical_volume *_create_mirror_log(struct logical_volume *lv,
return NULL;
}
if (dm_snprintf(log_name, len, "%s%s", lv->name, suffix) < 0) {
if (dm_snprintf(log_name, len, "%s%s", lv_name, suffix) < 0) {
log_error("log_name allocation failed.");
return NULL;
}
@ -1207,7 +1207,9 @@ static struct logical_volume *_set_up_mirror_log(struct cmd_context *cmd,
int in_sync)
{
struct logical_volume *log_lv;
const char *suffix;
const char *suffix, *c;
char *lv_name;
size_t len;
struct lv_segment *seg;
init_mirror_in_sync(in_sync);
@ -1217,15 +1219,34 @@ static struct logical_volume *_set_up_mirror_log(struct cmd_context *cmd,
return NULL;
}
/* Check if the log is for temporary sync layer. */
/* Mirror log name is lv_name + suffix, determined as the following:
* 1. suffix is:
* o "_mlog" for the original mirror LV.
* o "_mlogtmp_%d" for temporary mirror LV,
* 2. lv_name is:
* o lv->name, if the log is temporary
* o otherwise, the top-level LV name
*/
seg = first_seg(lv);
if (seg_type(seg, 0) == AREA_LV &&
strstr(seg_lv(seg, 0)->name, MIRROR_SYNC_LAYER))
strstr(seg_lv(seg, 0)->name, MIRROR_SYNC_LAYER)) {
lv_name = lv->name;
suffix = "_mlogtmp_%d";
else
} else if ((c = strstr(lv->name, MIRROR_SYNC_LAYER))) {
len = c - lv->name + 1;
if (!(lv_name = alloca(len)) ||
!dm_snprintf(lv_name, len, "%s", lv->name)) {
log_error("mirror log name allocation failed");
return 0;
}
suffix = "_mlog";
} else {
lv_name = lv->name;
suffix = "_mlog";
}
if (!(log_lv = _create_mirror_log(lv, ah, alloc, lv->name, suffix))) {
if (!(log_lv = _create_mirror_log(lv, ah, alloc,
(const char *) lv_name, suffix))) {
log_error("Failed to create mirror log.");
return NULL;
}

3
lib/mirror/mirrored.c
View File

@ -456,7 +456,8 @@ static int _target_monitored(struct lv_segment *seg, int *pending)
}
/* FIXME This gets run while suspended and performs banned operations. */
static int _target_set_events(struct lv_segment *seg, int evmask, int set)
static int _target_set_events(struct lv_segment *seg,
int evmask __attribute((unused)), int set)
{
char *dso, *name;
struct logical_volume *lv;

2
lib/report/report.c
View File

@ -1049,7 +1049,7 @@ static const struct dm_report_object_type _report_types[] = {
#define STR DM_REPORT_FIELD_TYPE_STRING
#define NUM DM_REPORT_FIELD_TYPE_NUMBER
#define FIELD(type, strct, sorttype, head, field, width, func, id, desc) {type, sorttype, (off_t)((void *)&_dummy._ ## strct.field - (void *)&_dummy._ ## strct), width, id, head, &_ ## func ## _disp, desc},
#define FIELD(type, strct, sorttype, head, field, width, func, id, desc) {type, sorttype, (off_t)((uintptr_t)&_dummy._ ## strct.field - (uintptr_t)&_dummy._ ## strct), width, id, head, &_ ## func ## _disp, desc},
static struct dm_report_field_type _fields[] = {
#include "columns.h"

3
lib/snapshot/snapshot.c
View File

@ -213,7 +213,8 @@ static int _target_registered(struct lv_segment *seg, int *pending)
}
/* FIXME This gets run while suspended and performs banned operations. */
static int _target_set_events(struct lv_segment *seg, int events, int set)
static int _target_set_events(struct lv_segment *seg,
int events __attribute((unused)), int set)
{
char *dso, *name;
struct volume_group *vg = seg->lv->vg;

206
test/t-mirror-names.sh Normal file
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@ -0,0 +1,206 @@
#!/bin/sh
# Copyright (C) 2007-2008 Red Hat, Inc. All rights reserved.
# Copyright (C) 2007-2008 NEC Corporation
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
test_description="check namings of mirrored LV"
privileges_required_=1
. ./test-lib.sh
dmsetup_has_dm_devdir_support_ ||
{
say "Your version of dmsetup lacks support for changing DM_DEVDIR."
say "Skipping this test"
exit 0
}
cleanup_()
{
test -n "$vg" && {
lvremove -ff $vg
vgremove $vg
} > /dev/null
test -n "$pvs" && {
pvremove $pvs > /dev/null
for d in $pvs; do
dmsetup remove $(basename $d)
done
}
losetup -d $lodev
rm -f $lofile
}
# ---------------------------------------------------------------------
# config
nr_pvs=5
pvsize=$((80 * 1024 * 2))
vg=mirror-names-vg-$$
lv1=lv1
lv2=lv2
# ---------------------------------------------------------------------
# Utilities
pv_()
{
echo "$G_dev_/mapper/pv$1"
}
lv_devices_()
{
local d
local lv=$1
shift
local devices=$*
local devs=$(lvs -a -odevices --noheadings $lv | sed 's/([0-9]*)//g' |
sed 's/ //g' | sed 's/,/ /g')
for d in $devs; do
(echo $devices | grep -q $d) || return 1
devices=$(echo $devices | sed "s/$d//")
done
[ "$(echo $devices | sed 's/ //g')" = "" ]
}
lv_mirror_log_()
{
local lv=$1
echo $(lvs -a -omirror_log --noheadings $lv | sed 's/ //g')
}
lv_convert_lv_()
{
local lv=$1
echo $(lvs -a -oconvert_lv --noheadings $lv | sed 's/ //g')
}
# ---------------------------------------------------------------------
# Initialize PVs and VGs
test_expect_success \
'set up temp file and loopback device' \
'lofile=$(pwd)/lofile && lodev=$(loop_setup_ "$lofile")'
offset=0
pvs=
for n in $(seq 1 $nr_pvs); do
test_expect_success \
"create pv$n" \
'echo "0 $pvsize linear $lodev $offset" > in &&
dmsetup create pv$n < in'
offset=$(($offset + $pvsize))
done
for n in $(seq 1 $nr_pvs); do
pvs="$pvs $(pv_ $n)"
done
test_expect_success \
"Run this: pvcreate $pvs" \
'pvcreate $pvs'
test_expect_success \
'set up a VG' \
'vgcreate $vg $pvs'
# ---------------------------------------------------------------------
# Common environment setup/cleanup for each sub testcases
prepare_lvs_()
{
lvremove -ff $vg;
:
}
check_and_cleanup_lvs_()
{
lvs -a -o+devices $vg &&
lvremove -ff $vg
}
test_expect_success "check environment setup/cleanup" \
'prepare_lvs_ &&
check_and_cleanup_lvs_'
# ---------------------------------------------------------------------
# basic
test_expect_success "init: lvcreate" "prepare_lvs_"
test_expect_success "mirror images are ${lv1}_mimage_x" \
'lvcreate -l2 -m1 -n $lv1 $vg &&
lv_devices_ $vg/$lv1 "$lv1"_mimage_0 "$lv1"_mimage_1'
test_expect_success "mirror log is ${lv1}_mlog" \
'lv_mirror_log_ $vg/$lv1 "$lv1"_mlog'
test_expect_success "cleanup" "check_and_cleanup_lvs_"
# ---------------------------------------------------------------------
# lvrename
test_expect_success "init: lvrename" "prepare_lvs_"
test_expect_success "renamed mirror names: $lv1 to $lv2" \
'lvcreate -l2 -m1 -n $lv1 $vg &&
lvrename $vg/$lv1 $vg/$lv2 &&
lv_devices_ $vg/$lv2 "$lv2"_mimage_0 "$lv2"_mimage_1 &&
lv_mirror_log_ $vg/$lv2 "$lv2"_mlog'
test_expect_success "cleanup" "check_and_cleanup_lvs_"
# ---------------------------------------------------------------------
# lvconvert
test_expect_success "init: lvconvert" "prepare_lvs_"
test_expect_success "converting mirror names is ${lv1}_mimagetmp_2" \
'lvcreate -l2 -m1 -n $lv1 $vg &&
lvconvert -m+1 -i1000 -b $vg/$lv1 &&
convlv=$(lv_convert_lv_ "$vg/$lv1") &&
test "$convlv" = "$lv1"_mimagetmp_2 &&
lv_devices_ $vg/$lv1 "$convlv" "$lv1"_mimage_2 &&
lv_devices_ "$vg/$convlv" "$lv1"_mimage_0 "$lv1"_mimage_1 &&
loglv=$(lv_mirror_log_ "$vg/$convlv") &&
test "$loglv" = "$lv1"_mlog'
test_expect_success "mirror log name after re-adding is ${lv1}_mlog" \
'lvconvert --mirrorlog core $vg/$lv1 &&
lvconvert --mirrorlog disk $vg/$lv1 &&
convlv=$(lv_convert_lv_ "$vg/$lv1") &&
lv_devices_ $vg/$lv1 "$convlv" "$lv1"_mimage_2 &&
lv_devices_ "$vg/$convlv" "$lv1"_mimage_0 "$lv1"_mimage_1 &&
loglv=$(lv_mirror_log_ "$vg/$convlv") &&
test "$loglv" = "$lv1"_mlog'
test_expect_success "renamed converting mirror names: $lv1 to $lv2" \
'lvrename $vg/$lv1 $vg/$lv2 &&
convlv=$(lv_convert_lv_ "$vg/$lv2") &&
lv_devices_ $vg/$lv2 "$convlv" "$lv2"_mimage_2 &&
lv_devices_ "$vg/$convlv" "$lv2"_mimage_0 "$lv2"_mimage_1 &&
loglv=$(lv_mirror_log_ "$vg/$convlv") &&
test "$loglv" = "$lv2"_mlog'
test_expect_success "cleanup" "check_and_cleanup_lvs_"
# Temporary mirror log should have "_mlogtmp_<n>" suffix
# but currently lvconvert doesn't have an option to add the log.
# If such feature is added in future, a test for that should
# be added.
# ---------------------------------------------------------------------
test_done

3
tools/lvm-static.c
View File

@ -20,7 +20,8 @@ int main(int argc, char **argv)
return lvm2_main(argc, argv, 1);
}
int lvm_shell(struct cmd_context *cmd, struct cmdline_context *cmdline)
int lvm_shell(struct cmd_context *cmd __attribute((unused)),
struct cmdline_context *cmdline __attribute((unused)))
{
return 0;
}

3
tools/lvm.c
View File

@ -121,7 +121,8 @@ static char *_list_args(const char *text, int state)
}
/* Custom completion function */
static char **_completion(const char *text, int start_pos, int end_pos)
static char **_completion(const char *text, int start_pos,
int end_pos __attribute((unused)))
{
char **match_list = NULL;
int p = 0;

3
tools/lvm2cmd.c
View File

@ -20,7 +20,8 @@ void *lvm2_init(void)
return cmdlib_lvm2_init(0);
}
int lvm_shell(struct cmd_context *cmd, struct cmdline_context *cmdline)
int lvm_shell(struct cmd_context *cmd __attribute((unused)),
struct cmdline_context *cmdline __attribute((unused)))
{
return 0;
}