diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 22 |
1 files changed, 12 insertions, 10 deletions
@@ -58,7 +58,8 @@ static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num, static QTAILQ_HEAD(, BlockDriverState) bdrv_states = QTAILQ_HEAD_INITIALIZER(bdrv_states); -static BlockDriver *first_drv; +static QLIST_HEAD(, BlockDriver) bdrv_drivers = + QLIST_HEAD_INITIALIZER(bdrv_drivers); /* If non-zero, use only whitelisted block drivers */ static int use_bdrv_whitelist; @@ -142,8 +143,7 @@ void bdrv_register(BlockDriver *bdrv) if (!bdrv->bdrv_aio_flush) bdrv->bdrv_aio_flush = bdrv_aio_flush_em; - bdrv->next = first_drv; - first_drv = bdrv; + QLIST_INSERT_HEAD(&bdrv_drivers, bdrv, list); } /* create a new block device (by default it is empty) */ @@ -162,9 +162,10 @@ BlockDriverState *bdrv_new(const char *device_name) BlockDriver *bdrv_find_format(const char *format_name) { BlockDriver *drv1; - for(drv1 = first_drv; drv1 != NULL; drv1 = drv1->next) { - if (!strcmp(drv1->format_name, format_name)) + QLIST_FOREACH(drv1, &bdrv_drivers, list) { + if (!strcmp(drv1->format_name, format_name)) { return drv1; + } } return NULL; } @@ -265,10 +266,11 @@ static BlockDriver *find_protocol(const char *filename) len = sizeof(protocol) - 1; memcpy(protocol, filename, len); protocol[len] = '\0'; - for(drv1 = first_drv; drv1 != NULL; drv1 = drv1->next) { + QLIST_FOREACH(drv1, &bdrv_drivers, list) { if (drv1->protocol_name && - !strcmp(drv1->protocol_name, protocol)) + !strcmp(drv1->protocol_name, protocol)) { return drv1; + } } return NULL; } @@ -282,7 +284,7 @@ static BlockDriver *find_hdev_driver(const char *filename) int score_max = 0, score; BlockDriver *drv = NULL, *d; - for (d = first_drv; d; d = d->next) { + QLIST_FOREACH(d, &bdrv_drivers, list) { if (d->bdrv_probe_device) { score = d->bdrv_probe_device(filename); if (score > score_max) { @@ -317,7 +319,7 @@ static BlockDriver *find_image_format(const char *filename) } score_max = 0; - for(drv1 = first_drv; drv1 != NULL; drv1 = drv1->next) { + QLIST_FOREACH(drv1, &bdrv_drivers, list) { if (drv1->bdrv_probe) { score = drv1->bdrv_probe(buf, ret, filename); if (score > score_max) { @@ -1157,7 +1159,7 @@ void bdrv_iterate_format(void (*it)(void *opaque, const char *name), { BlockDriver *drv; - for (drv = first_drv; drv != NULL; drv = drv->next) { + QLIST_FOREACH(drv, &bdrv_drivers, list) { it(opaque, drv->format_name); } } |