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Diffstat (limited to 'block/quorum.c')
-rw-r--r--block/quorum.c67
1 files changed, 45 insertions, 22 deletions
diff --git a/block/quorum.c b/block/quorum.c
index b9ba028d46..da15465a9a 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -13,6 +13,7 @@
* See the COPYING file in the top-level directory.
*/
+#include "qemu/osdep.h"
#include "block/block_int.h"
#include "qapi/qmp/qbool.h"
#include "qapi/qmp/qdict.h"
@@ -214,14 +215,16 @@ static QuorumAIOCB *quorum_aio_get(BDRVQuorumState *s,
return acb;
}
-static void quorum_report_bad(QuorumAIOCB *acb, char *node_name, int ret)
+static void quorum_report_bad(QuorumOpType type, uint64_t sector_num,
+ int nb_sectors, char *node_name, int ret)
{
const char *msg = NULL;
if (ret < 0) {
msg = strerror(-ret);
}
- qapi_event_send_quorum_report_bad(!!msg, msg, node_name,
- acb->sector_num, acb->nb_sectors, &error_abort);
+
+ qapi_event_send_quorum_report_bad(type, !!msg, msg, node_name,
+ sector_num, nb_sectors, &error_abort);
}
static void quorum_report_failure(QuorumAIOCB *acb)
@@ -283,9 +286,19 @@ static void quorum_aio_cb(void *opaque, int ret)
BDRVQuorumState *s = acb->common.bs->opaque;
bool rewrite = false;
+ if (ret == 0) {
+ acb->success_count++;
+ } else {
+ QuorumOpType type;
+ type = acb->is_read ? QUORUM_OP_TYPE_READ : QUORUM_OP_TYPE_WRITE;
+ quorum_report_bad(type, acb->sector_num, acb->nb_sectors,
+ sacb->aiocb->bs->node_name, ret);
+ }
+
if (acb->is_read && s->read_pattern == QUORUM_READ_PATTERN_FIFO) {
/* We try to read next child in FIFO order if we fail to read */
- if (ret < 0 && ++acb->child_iter < s->num_children) {
+ if (ret < 0 && (acb->child_iter + 1) < s->num_children) {
+ acb->child_iter++;
read_fifo_child(acb);
return;
}
@@ -300,11 +313,6 @@ static void quorum_aio_cb(void *opaque, int ret)
sacb->ret = ret;
acb->count++;
- if (ret == 0) {
- acb->success_count++;
- } else {
- quorum_report_bad(acb, sacb->aiocb->bs->node_name, ret);
- }
assert(acb->count <= s->num_children);
assert(acb->success_count <= s->num_children);
if (acb->count < s->num_children) {
@@ -336,7 +344,9 @@ static void quorum_report_bad_versions(BDRVQuorumState *s,
continue;
}
QLIST_FOREACH(item, &version->items, next) {
- quorum_report_bad(acb, s->children[item->index]->bs->node_name, 0);
+ quorum_report_bad(QUORUM_OP_TYPE_READ, acb->sector_num,
+ acb->nb_sectors,
+ s->children[item->index]->bs->node_name, 0);
}
}
}
@@ -646,8 +656,9 @@ static BlockAIOCB *read_quorum_children(QuorumAIOCB *acb)
}
for (i = 0; i < s->num_children; i++) {
- bdrv_aio_readv(s->children[i]->bs, acb->sector_num, &acb->qcrs[i].qiov,
- acb->nb_sectors, quorum_aio_cb, &acb->qcrs[i]);
+ acb->qcrs[i].aiocb = bdrv_aio_readv(s->children[i]->bs, acb->sector_num,
+ &acb->qcrs[i].qiov, acb->nb_sectors,
+ quorum_aio_cb, &acb->qcrs[i]);
}
return &acb->common;
@@ -662,9 +673,10 @@ static BlockAIOCB *read_fifo_child(QuorumAIOCB *acb)
qemu_iovec_init(&acb->qcrs[acb->child_iter].qiov, acb->qiov->niov);
qemu_iovec_clone(&acb->qcrs[acb->child_iter].qiov, acb->qiov,
acb->qcrs[acb->child_iter].buf);
- bdrv_aio_readv(s->children[acb->child_iter]->bs, acb->sector_num,
- &acb->qcrs[acb->child_iter].qiov, acb->nb_sectors,
- quorum_aio_cb, &acb->qcrs[acb->child_iter]);
+ acb->qcrs[acb->child_iter].aiocb =
+ bdrv_aio_readv(s->children[acb->child_iter]->bs, acb->sector_num,
+ &acb->qcrs[acb->child_iter].qiov, acb->nb_sectors,
+ quorum_aio_cb, &acb->qcrs[acb->child_iter]);
return &acb->common;
}
@@ -758,19 +770,30 @@ static coroutine_fn int quorum_co_flush(BlockDriverState *bs)
QuorumVoteValue result_value;
int i;
int result = 0;
+ int success_count = 0;
QLIST_INIT(&error_votes.vote_list);
error_votes.compare = quorum_64bits_compare;
for (i = 0; i < s->num_children; i++) {
result = bdrv_co_flush(s->children[i]->bs);
- result_value.l = result;
- quorum_count_vote(&error_votes, &result_value, i);
+ if (result) {
+ quorum_report_bad(QUORUM_OP_TYPE_FLUSH, 0,
+ bdrv_nb_sectors(s->children[i]->bs),
+ s->children[i]->bs->node_name, result);
+ result_value.l = result;
+ quorum_count_vote(&error_votes, &result_value, i);
+ } else {
+ success_count++;
+ }
}
- winner = quorum_get_vote_winner(&error_votes);
- result = winner->value.l;
-
+ if (success_count >= s->threshold) {
+ result = 0;
+ } else {
+ winner = quorum_get_vote_winner(&error_votes);
+ result = winner->value.l;
+ }
quorum_free_vote_list(&error_votes);
return result;
@@ -847,7 +870,7 @@ static int parse_read_pattern(const char *opt)
return QUORUM_READ_PATTERN_QUORUM;
}
- for (i = 0; i < QUORUM_READ_PATTERN_MAX; i++) {
+ for (i = 0; i < QUORUM_READ_PATTERN__MAX; i++) {
if (!strcmp(opt, QuorumReadPattern_lookup[i])) {
return i;
}
@@ -997,7 +1020,7 @@ static void quorum_attach_aio_context(BlockDriverState *bs,
}
}
-static void quorum_refresh_filename(BlockDriverState *bs)
+static void quorum_refresh_filename(BlockDriverState *bs, QDict *options)
{
BDRVQuorumState *s = bs->opaque;
QDict *opts;