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[Qemu-devel] [PATCH v2 06/17] block: add error parameter to bdrv_snapsho
From: |
Pavel Hrdina |
Subject: |
[Qemu-devel] [PATCH v2 06/17] block: add error parameter to bdrv_snapshot_find() |
Date: |
Thu, 13 Dec 2012 16:40:40 +0100 |
Signed-off-by: Pavel Hrdina <address@hidden>
---
savevm.c | 28 ++++++++++++++++++----------
1 file changed, 18 insertions(+), 10 deletions(-)
diff --git a/savevm.c b/savevm.c
index e57c108..7ab7c7c 100644
--- a/savevm.c
+++ b/savevm.c
@@ -2061,16 +2061,21 @@ out:
return ret;
}
-static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
- const char *name)
+static int bdrv_snapshot_find(BlockDriverState *bs,
+ QEMUSnapshotInfo *sn_info,
+ const char *name,
+ Error **errp)
{
QEMUSnapshotInfo *sn_tab, *sn;
int nb_sns, i, ret;
+
+ nb_sns = bdrv_snapshot_list(bs, &sn_tab, errp);
+ if (error_is_set(errp)) {
+ return nb_sns;
+ }
+
ret = -ENOENT;
- nb_sns = bdrv_snapshot_list(bs, &sn_tab, NULL);
- if (nb_sns < 0)
- return ret;
for(i = 0; i < nb_sns; i++) {
sn = &sn_tab[i];
if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
@@ -2080,6 +2085,9 @@ static int bdrv_snapshot_find(BlockDriverState *bs,
QEMUSnapshotInfo *sn_info,
}
}
g_free(sn_tab);
+ if (ret < 0) {
+ error_setg(errp, "Failed to find snapshot '%s'.", name);
+ }
return ret;
}
@@ -2095,7 +2103,7 @@ static int del_existing_snapshots(Monitor *mon, const
char *name)
bs = NULL;
while ((bs = bdrv_next(bs))) {
if (bdrv_can_snapshot(bs) &&
- bdrv_snapshot_find(bs, snapshot, name) >= 0)
+ bdrv_snapshot_find(bs, snapshot, name, NULL) >= 0)
{
ret = bdrv_snapshot_delete(bs, name, NULL);
if (ret < 0) {
@@ -2166,7 +2174,7 @@ void do_savevm(Monitor *mon, const QDict *qdict)
sn->vm_clock_nsec = qemu_get_clock_ns(vm_clock);
if (name) {
- ret = bdrv_snapshot_find(bs, old_sn, name);
+ ret = bdrv_snapshot_find(bs, old_sn, name, NULL);
if (ret >= 0) {
pstrcpy(sn->name, sizeof(sn->name), old_sn->name);
pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str);
@@ -2263,7 +2271,7 @@ int load_vmstate(const char *name)
}
/* Don't even try to load empty VM states */
- ret = bdrv_snapshot_find(bs_vm_state, &sn, name);
+ ret = bdrv_snapshot_find(bs_vm_state, &sn, name, NULL);
if (ret < 0) {
return ret;
} else if (sn.vm_state_size == 0) {
@@ -2287,7 +2295,7 @@ int load_vmstate(const char *name)
return -ENOTSUP;
}
- ret = bdrv_snapshot_find(bs, &sn, name);
+ ret = bdrv_snapshot_find(bs, &sn, name, NULL);
if (ret < 0) {
error_report("Device '%s' does not have the requested snapshot
'%s'",
bdrv_get_device_name(bs), name);
@@ -2393,7 +2401,7 @@ void do_info_snapshots(Monitor *mon)
while ((bs1 = bdrv_next(bs1))) {
if (bdrv_can_snapshot(bs1) && bs1 != bs) {
- ret = bdrv_snapshot_find(bs1, sn_info, sn->id_str);
+ ret = bdrv_snapshot_find(bs1, sn_info, sn->id_str, NULL);
if (ret < 0) {
available = 0;
break;
--
1.8.0.2
- Re: [Qemu-devel] [PATCH v2 08/17] savevm: add error parameter to qemu_savevm_state_begin(), (continued)
- [Qemu-devel] [PATCH v2 03/17] block: add error parameter to bdrv_snapshot_goto() and related functions, Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 07/17] block: add error parameter to del_existing_snapshots(), Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 02/17] block: add error parameter to bdrv_snapshot_create() and related functions, Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 12/17] savevm: add error parameter to qemu_loadvm_state(), Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 06/17] block: add error parameter to bdrv_snapshot_find(),
Pavel Hrdina <=
- [Qemu-devel] [PATCH v2 05/17] block: add error parameter to bdrv_snapshot_list() and related functions, Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 04/17] block: add error parameter to bdrv_snapshot_delete() and related functions, Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 09/17] savevm: add error parameter to qemu_savevm_state_iterate(), Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 16/17] qapi: Convert info snapshots, Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 11/17] savevm: add error parameter to qemu_savevm_state(), Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 13/17] qapi: Convert savevm, Pavel Hrdina, 2012/12/13
- [Qemu-devel] [PATCH v2 10/17] savevm: add error parameter to qemu_savevm_state_complete(), Pavel Hrdina, 2012/12/13