{
BlockDriverState *bs;
- bs = qemu_mallocz(sizeof(BlockDriverState));
+ bs = g_malloc0(sizeof(BlockDriverState));
pstrcpy(bs->device_name, sizeof(bs->device_name), device_name);
if (device_name[0] != '\0') {
QTAILQ_INSERT_TAIL(&bdrv_states, bs, list);
return 0;
}
+/**
+ * Set open flags for a given cache mode
+ *
+ * Return 0 on success, -1 if the cache mode was invalid.
+ */
+int bdrv_parse_cache_flags(const char *mode, int *flags)
+{
+ *flags &= ~BDRV_O_CACHE_MASK;
+
+ if (!strcmp(mode, "off") || !strcmp(mode, "none")) {
+ *flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB;
+ } else if (!strcmp(mode, "directsync")) {
+ *flags |= BDRV_O_NOCACHE;
+ } else if (!strcmp(mode, "writeback")) {
+ *flags |= BDRV_O_CACHE_WB;
+ } else if (!strcmp(mode, "unsafe")) {
+ *flags |= BDRV_O_CACHE_WB;
+ *flags |= BDRV_O_NO_FLUSH;
+ } else if (!strcmp(mode, "writethrough")) {
+ /* this is the default */
+ } else {
+ return -1;
+ }
+
+ return 0;
+}
+
/*
* Common part for opening disk images and files
*/
}
bs->drv = drv;
- bs->opaque = qemu_mallocz(drv->instance_size);
+ bs->opaque = g_malloc0(drv->instance_size);
if (flags & BDRV_O_CACHE_WB)
bs->enable_write_cache = 1;
bdrv_delete(bs->file);
bs->file = NULL;
}
- qemu_free(bs->opaque);
+ g_free(bs->opaque);
bs->opaque = NULL;
bs->drv = NULL;
return ret;
bs->backing_hd = NULL;
}
bs->drv->bdrv_close(bs);
- qemu_free(bs->opaque);
+ g_free(bs->opaque);
#ifdef _WIN32
if (bs->is_temporary) {
unlink(bs->filename);
}
assert(bs != bs_snapshots);
- qemu_free(bs);
+ g_free(bs);
}
int bdrv_attach(BlockDriverState *bs, DeviceState *qdev)
}
total_sectors = bdrv_getlength(bs) >> BDRV_SECTOR_BITS;
- buf = qemu_malloc(COMMIT_BUF_SECTORS * BDRV_SECTOR_SIZE);
+ buf = g_malloc(COMMIT_BUF_SECTORS * BDRV_SECTOR_SIZE);
for (sector = 0; sector < total_sectors; sector += n) {
if (drv->bdrv_is_allocated(bs, sector, COMMIT_BUF_SECTORS, &n)) {
bdrv_flush(bs->backing_hd);
ro_cleanup:
- qemu_free(buf);
+ g_free(buf);
if (ro) {
/* re-open as RO */
return ret;
}
- /* No flush needed for cache=writethrough, it uses O_DSYNC */
- if ((bs->open_flags & BDRV_O_CACHE_MASK) != 0) {
+ /* No flush needed for cache modes that use O_DSYNC */
+ if ((bs->open_flags & BDRV_O_CACHE_WB) != 0) {
bdrv_flush(bs);
}
" wr_bytes=%" PRId64
" rd_operations=%" PRId64
" wr_operations=%" PRId64
+ " flush_operations=%" PRId64
+ " wr_total_time_ns=%" PRId64
+ " rd_total_time_ns=%" PRId64
+ " flush_total_time_ns=%" PRId64
"\n",
qdict_get_int(qdict, "rd_bytes"),
qdict_get_int(qdict, "wr_bytes"),
qdict_get_int(qdict, "rd_operations"),
- qdict_get_int(qdict, "wr_operations"));
+ qdict_get_int(qdict, "wr_operations"),
+ qdict_get_int(qdict, "flush_operations"),
+ qdict_get_int(qdict, "wr_total_time_ns"),
+ qdict_get_int(qdict, "rd_total_time_ns"),
+ qdict_get_int(qdict, "flush_total_time_ns"));
}
void bdrv_stats_print(Monitor *mon, const QObject *data)
"'wr_bytes': %" PRId64 ","
"'rd_operations': %" PRId64 ","
"'wr_operations': %" PRId64 ","
- "'wr_highest_offset': %" PRId64
+ "'wr_highest_offset': %" PRId64 ","
+ "'flush_operations': %" PRId64 ","
+ "'wr_total_time_ns': %" PRId64 ","
+ "'rd_total_time_ns': %" PRId64 ","
+ "'flush_total_time_ns': %" PRId64
"} }",
- bs->rd_bytes, bs->wr_bytes,
- bs->rd_ops, bs->wr_ops,
+ bs->nr_bytes[BDRV_ACCT_READ],
+ bs->nr_bytes[BDRV_ACCT_WRITE],
+ bs->nr_ops[BDRV_ACCT_READ],
+ bs->nr_ops[BDRV_ACCT_WRITE],
bs->wr_highest_sector *
- (uint64_t)BDRV_SECTOR_SIZE);
+ (uint64_t)BDRV_SECTOR_SIZE,
+ bs->nr_ops[BDRV_ACCT_FLUSH],
+ bs->total_time_ns[BDRV_ACCT_WRITE],
+ bs->total_time_ns[BDRV_ACCT_READ],
+ bs->total_time_ns[BDRV_ACCT_FLUSH]);
dict = qobject_to_qdict(res);
if (*bs->device_name) {
return buf;
}
-
/**************************************************************/
/* async I/Os */
BlockDriverCompletionFunc *cb, void *opaque)
{
BlockDriver *drv = bs->drv;
- BlockDriverAIOCB *ret;
trace_bdrv_aio_readv(bs, sector_num, nb_sectors, opaque);
if (bdrv_check_request(bs, sector_num, nb_sectors))
return NULL;
- ret = drv->bdrv_aio_readv(bs, sector_num, qiov, nb_sectors,
- cb, opaque);
-
- if (ret) {
- /* Update stats even though technically transfer has not happened. */
- bs->rd_bytes += (unsigned) nb_sectors * BDRV_SECTOR_SIZE;
- bs->rd_ops ++;
- }
-
- return ret;
+ return drv->bdrv_aio_readv(bs, sector_num, qiov, nb_sectors,
+ cb, opaque);
}
typedef struct BlockCompleteData {
set_dirty_bitmap(b->bs, b->sector_num, b->nb_sectors, 1);
}
b->cb(b->opaque, ret);
- qemu_free(b);
+ g_free(b);
}
static BlockCompleteData *blk_dirty_cb_alloc(BlockDriverState *bs,
BlockDriverCompletionFunc *cb,
void *opaque)
{
- BlockCompleteData *blkdata = qemu_mallocz(sizeof(BlockCompleteData));
+ BlockCompleteData *blkdata = g_malloc0(sizeof(BlockCompleteData));
blkdata->bs = bs;
blkdata->cb = cb;
cb, opaque);
if (ret) {
- /* Update stats even though technically transfer has not happened. */
- bs->wr_bytes += (unsigned) nb_sectors * BDRV_SECTOR_SIZE;
- bs->wr_ops ++;
if (bs->wr_highest_sector < sector_num + nb_sectors - 1) {
bs->wr_highest_sector = sector_num + nb_sectors - 1;
}
if (mcb->callbacks[i].free_qiov) {
qemu_iovec_destroy(mcb->callbacks[i].free_qiov);
}
- qemu_free(mcb->callbacks[i].free_qiov);
+ g_free(mcb->callbacks[i].free_qiov);
qemu_vfree(mcb->callbacks[i].free_buf);
}
}
mcb->num_requests--;
if (mcb->num_requests == 0) {
multiwrite_user_cb(mcb);
- qemu_free(mcb);
+ g_free(mcb);
}
}
if (merge) {
size_t size;
- QEMUIOVector *qiov = qemu_mallocz(sizeof(*qiov));
+ QEMUIOVector *qiov = g_malloc0(sizeof(*qiov));
qemu_iovec_init(qiov,
reqs[outidx].qiov->niov + reqs[i].qiov->niov + 1);
}
// Create MultiwriteCB structure
- mcb = qemu_mallocz(sizeof(*mcb) + num_reqs * sizeof(*mcb->callbacks));
+ mcb = g_malloc0(sizeof(*mcb) + num_reqs * sizeof(*mcb->callbacks));
mcb->num_requests = 0;
mcb->num_callbacks = num_reqs;
for (i = 0; i < mcb->num_callbacks; i++) {
reqs[i].error = -EIO;
}
- qemu_free(mcb);
+ g_free(mcb);
return -1;
}
acb = pool->free_aiocb;
pool->free_aiocb = acb->next;
} else {
- acb = qemu_mallocz(pool->aiocb_size);
+ acb = g_malloc0(pool->aiocb_size);
acb->pool = pool;
}
acb->bs = bs;
BDRV_SECTORS_PER_DIRTY_CHUNK * 8 - 1;
bitmap_size /= BDRV_SECTORS_PER_DIRTY_CHUNK * 8;
- bs->dirty_bitmap = qemu_mallocz(bitmap_size);
+ bs->dirty_bitmap = g_malloc0(bitmap_size);
}
} else {
if (bs->dirty_bitmap) {
- qemu_free(bs->dirty_bitmap);
+ g_free(bs->dirty_bitmap);
bs->dirty_bitmap = NULL;
}
}
return bs->in_use;
}
+void
+bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie, int64_t bytes,
+ enum BlockAcctType type)
+{
+ assert(type < BDRV_MAX_IOTYPE);
+
+ cookie->bytes = bytes;
+ cookie->start_time_ns = get_clock();
+ cookie->type = type;
+}
+
+void
+bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie)
+{
+ assert(cookie->type < BDRV_MAX_IOTYPE);
+
+ bs->nr_bytes[cookie->type] += cookie->bytes;
+ bs->nr_ops[cookie->type]++;
+ bs->total_time_ns[cookie->type] += get_clock() - cookie->start_time_ns;
+}
+
int bdrv_img_create(const char *filename, const char *fmt,
const char *base_filename, const char *base_fmt,
char *options, uint64_t img_size, int flags)
projects / qemu.git / blobdiff