acb->task->xfer_dir = SCSI_XFER_WRITE;
acb->task->cdb_size = 16;
acb->task->cdb[0] = 0x8a;
- if (!(bs->open_flags & BDRV_O_CACHE_WB)) {
- /* set FUA on writes when cache mode is write through */
- acb->task->cdb[1] |= 0x04;
- }
lba = sector_qemu2lun(sector_num, iscsilun);
*(uint32_t *)&acb->task->cdb[2] = htonl(lba >> 32);
*(uint32_t *)&acb->task->cdb[6] = htonl(lba & 0xffffffff);
if ((bdrv_flags & BDRV_O_NOCACHE)) {
*open_flags |= O_DIRECT;
}
- if (!(bdrv_flags & BDRV_O_CACHE_WB)) {
- *open_flags |= O_DSYNC;
- }
}
#ifdef CONFIG_LINUX_AIO
if (flags & BDRV_O_NOCACHE) {
*overlapped |= FILE_FLAG_NO_BUFFERING;
}
- if (!(flags & BDRV_O_CACHE_WB)) {
- *overlapped |= FILE_FLAG_WRITE_THROUGH;
- }
}
static int raw_open(BlockDriverState *bs, const char *filename, int flags)
rados_conf_set(s->cluster, "rbd_cache", "false");
} else {
rados_conf_set(s->cluster, "rbd_cache", "true");
- if (!(flags & BDRV_O_CACHE_WB)) {
- r = rados_conf_set(s->cluster, "rbd_cache_max_dirty", "0");
- if (r < 0) {
- rados_conf_set(s->cluster, "rbd_cache", "false");
- }
- }
}
if (strstr(conf, "conf=") == NULL) {
goto out;
}
- if (flags & BDRV_O_CACHE_WB) {
- s->cache_enabled = 1;
- s->flush_fd = connect_to_sdog(s->addr, s->port);
- if (s->flush_fd < 0) {
- error_report("failed to connect");
- ret = s->flush_fd;
- goto out;
- }
+ s->cache_enabled = 1;
+ s->flush_fd = connect_to_sdog(s->addr, s->port);
+ if (s->flush_fd < 0) {
+ error_report("failed to connect");
+ ret = s->flush_fd;
+ goto out;
}
if (snapid || tag[0] != '\0') {