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https://gitlab.com/qemu-project/qemu.git
synced 2024-11-05 05:52:15 +03:00
block: Use g_new() & friends where that makes obvious sense
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. Patch created with Coccinelle, with two manual changes on top: * Add const to bdrv_iterate_format() to keep the types straight * Convert the allocation in bdrv_drop_intermediate(), which Coccinelle inexplicably misses Coccinelle semantic patch: @@ type T; @@ -g_malloc(sizeof(T)) +g_new(T, 1) @@ type T; @@ -g_try_malloc(sizeof(T)) +g_try_new(T, 1) @@ type T; @@ -g_malloc0(sizeof(T)) +g_new0(T, 1) @@ type T; @@ -g_try_malloc0(sizeof(T)) +g_try_new0(T, 1) @@ type T; expression n; @@ -g_malloc(sizeof(T) * (n)) +g_new(T, n) @@ type T; expression n; @@ -g_try_malloc(sizeof(T) * (n)) +g_try_new(T, n) @@ type T; expression n; @@ -g_malloc0(sizeof(T) * (n)) +g_new0(T, n) @@ type T; expression n; @@ -g_try_malloc0(sizeof(T) * (n)) +g_try_new0(T, n) @@ type T; expression p, n; @@ -g_realloc(p, sizeof(T) * (n)) +g_renew(T, p, n) @@ type T; expression p, n; @@ -g_try_realloc(p, sizeof(T) * (n)) +g_try_renew(T, p, n) Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
parent
302fa28378
commit
5839e53bbc
@ -283,7 +283,7 @@ static int mig_save_device_bulk(QEMUFile *f, BlkMigDevState *bmds)
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nr_sectors = total_sectors - cur_sector;
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}
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blk = g_malloc(sizeof(BlkMigBlock));
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blk = g_new(BlkMigBlock, 1);
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blk->buf = g_malloc(BLOCK_SIZE);
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blk->bmds = bmds;
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blk->sector = cur_sector;
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@ -354,7 +354,7 @@ static void init_blk_migration_it(void *opaque, BlockDriverState *bs)
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return;
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}
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bmds = g_malloc0(sizeof(BlkMigDevState));
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bmds = g_new0(BlkMigDevState, 1);
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bmds->bs = bs;
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bmds->bulk_completed = 0;
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bmds->total_sectors = sectors;
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@ -465,7 +465,7 @@ static int mig_save_device_dirty(QEMUFile *f, BlkMigDevState *bmds,
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} else {
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nr_sectors = BDRV_SECTORS_PER_DIRTY_CHUNK;
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}
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blk = g_malloc(sizeof(BlkMigBlock));
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blk = g_new(BlkMigBlock, 1);
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blk->buf = g_malloc(BLOCK_SIZE);
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blk->bmds = bmds;
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blk->sector = sector;
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14
block.c
14
block.c
@ -351,7 +351,7 @@ BlockDriverState *bdrv_new(const char *device_name, Error **errp)
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return NULL;
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}
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bs = g_malloc0(sizeof(BlockDriverState));
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bs = g_new0(BlockDriverState, 1);
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QLIST_INIT(&bs->dirty_bitmaps);
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pstrcpy(bs->device_name, sizeof(bs->device_name), device_name);
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if (device_name[0] != '\0') {
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@ -2628,7 +2628,7 @@ int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top,
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* into our deletion queue, until we hit the 'base'
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*/
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while (intermediate) {
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intermediate_state = g_malloc0(sizeof(BlkIntermediateStates));
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intermediate_state = g_new0(BlkIntermediateStates, 1);
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intermediate_state->bs = intermediate;
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QSIMPLEQ_INSERT_TAIL(&states_to_delete, intermediate_state, entry);
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@ -3755,7 +3755,7 @@ void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
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}
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if (!found) {
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formats = g_realloc(formats, (count + 1) * sizeof(char *));
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formats = g_renew(const char *, formats, count + 1);
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formats[count++] = drv->format_name;
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it(opaque, drv->format_name);
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}
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@ -5330,7 +5330,7 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, int granularity,
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errno = -bitmap_size;
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return NULL;
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}
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bitmap = g_malloc0(sizeof(BdrvDirtyBitmap));
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bitmap = g_new0(BdrvDirtyBitmap, 1);
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bitmap->bitmap = hbitmap_alloc(bitmap_size, ffs(granularity) - 1);
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QLIST_INSERT_HEAD(&bs->dirty_bitmaps, bitmap, list);
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return bitmap;
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@ -5356,8 +5356,8 @@ BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs)
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BlockDirtyInfoList **plist = &list;
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QLIST_FOREACH(bm, &bs->dirty_bitmaps, list) {
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BlockDirtyInfo *info = g_malloc0(sizeof(BlockDirtyInfo));
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BlockDirtyInfoList *entry = g_malloc0(sizeof(BlockDirtyInfoList));
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BlockDirtyInfo *info = g_new0(BlockDirtyInfo, 1);
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BlockDirtyInfoList *entry = g_new0(BlockDirtyInfoList, 1);
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info->count = bdrv_get_dirty_count(bs, bm);
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info->granularity =
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((int64_t) BDRV_SECTOR_SIZE << hbitmap_granularity(bm->bitmap));
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@ -5451,7 +5451,7 @@ void bdrv_op_block(BlockDriverState *bs, BlockOpType op, Error *reason)
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BdrvOpBlocker *blocker;
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assert((int) op >= 0 && op < BLOCK_OP_TYPE_MAX);
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blocker = g_malloc0(sizeof(BdrvOpBlocker));
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blocker = g_new0(BdrvOpBlocker, 1);
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blocker->reason = reason;
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QLIST_INSERT_HEAD(&bs->op_blockers[op], blocker, list);
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}
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@ -750,7 +750,7 @@ static int archipelago_submit_request(BDRVArchipelagoState *s,
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char *target;
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void *data = NULL;
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struct xseg_request *req;
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AIORequestData *reqdata = g_malloc(sizeof(AIORequestData));
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AIORequestData *reqdata = g_new(AIORequestData, 1);
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targetlen = strlen(s->volname);
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req = xseg_get_request(s->xseg, s->srcport, s->vportno, X_ALLOC);
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@ -827,7 +827,7 @@ static int archipelago_aio_segmented_rw(BDRVArchipelagoState *s,
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int i, ret, segments_nr, last_segment_size;
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ArchipelagoSegmentedRequest *segreq;
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segreq = g_malloc(sizeof(ArchipelagoSegmentedRequest));
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segreq = g_new(ArchipelagoSegmentedRequest, 1);
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if (op == ARCHIP_OP_FLUSH) {
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segments_nr = 1;
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@ -960,7 +960,7 @@ static int64_t archipelago_volume_info(BDRVArchipelagoState *s)
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int ret, targetlen;
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struct xseg_request *req;
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struct xseg_reply_info *xinfo;
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AIORequestData *reqdata = g_malloc(sizeof(AIORequestData));
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AIORequestData *reqdata = g_new(AIORequestData, 1);
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const char *volname = s->volname;
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targetlen = strlen(volname);
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@ -291,7 +291,7 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
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BDRVGlusterState *s = bs->opaque;
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int open_flags = 0;
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int ret = 0;
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GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));
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GlusterConf *gconf = g_new0(GlusterConf, 1);
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QemuOpts *opts;
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Error *local_err = NULL;
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const char *filename;
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@ -351,12 +351,12 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
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assert(state != NULL);
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assert(state->bs != NULL);
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state->opaque = g_malloc0(sizeof(BDRVGlusterReopenState));
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state->opaque = g_new0(BDRVGlusterReopenState, 1);
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reop_s = state->opaque;
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qemu_gluster_parse_flags(state->flags, &open_flags);
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gconf = g_malloc0(sizeof(GlusterConf));
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gconf = g_new0(GlusterConf, 1);
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reop_s->glfs = qemu_gluster_init(gconf, state->bs->filename, errp);
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if (reop_s->glfs == NULL) {
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@ -486,7 +486,7 @@ static int qemu_gluster_create(const char *filename,
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int prealloc = 0;
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int64_t total_size = 0;
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char *tmp = NULL;
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GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));
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GlusterConf *gconf = g_new0(GlusterConf, 1);
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glfs = qemu_gluster_init(gconf, filename, errp);
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if (!glfs) {
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@ -1532,7 +1532,7 @@ static int iscsi_create(const char *filename, QemuOpts *opts, Error **errp)
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/* Read out options */
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total_size =
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qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0) / BDRV_SECTOR_SIZE;
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bs->opaque = g_malloc0(sizeof(struct IscsiLun));
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bs->opaque = g_new0(struct IscsiLun, 1);
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iscsilun = bs->opaque;
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bs_options = qdict_new();
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@ -409,7 +409,7 @@ static int nfs_file_create(const char *url, QemuOpts *opts, Error **errp)
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{
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int ret = 0;
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int64_t total_size = 0;
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NFSClient *client = g_malloc0(sizeof(NFSClient));
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NFSClient *client = g_new0(NFSClient, 1);
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client->aio_context = qemu_get_aio_context();
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@ -182,7 +182,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
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}
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s->l1_table_offset = header.l1_table_offset;
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s->l1_table = g_try_malloc(s->l1_size * sizeof(uint64_t));
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s->l1_table = g_try_new(uint64_t, s->l1_size);
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if (s->l1_table == NULL) {
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error_setg(errp, "Could not allocate memory for L1 table");
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ret = -ENOMEM;
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@ -711,7 +711,7 @@ int qcow2_alloc_cluster_link_l2(BlockDriverState *bs, QCowL2Meta *m)
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trace_qcow2_cluster_link_l2(qemu_coroutine_self(), m->nb_clusters);
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assert(m->nb_clusters > 0);
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old_cluster = g_try_malloc(m->nb_clusters * sizeof(uint64_t));
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old_cluster = g_try_new(uint64_t, m->nb_clusters);
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if (old_cluster == NULL) {
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ret = -ENOMEM;
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goto err;
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@ -350,7 +350,7 @@ static int alloc_refcount_block(BlockDriverState *bs,
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uint64_t meta_offset = (blocks_used * refcount_block_clusters) *
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s->cluster_size;
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uint64_t table_offset = meta_offset + blocks_clusters * s->cluster_size;
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uint64_t *new_table = g_try_malloc0(table_size * sizeof(uint64_t));
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uint64_t *new_table = g_try_new0(uint64_t, table_size);
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uint16_t *new_blocks = g_try_malloc0(blocks_clusters * s->cluster_size);
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assert(table_size > 0 && blocks_clusters > 0);
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@ -1524,7 +1524,7 @@ int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
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return -EFBIG;
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}
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refcount_table = g_try_malloc0(nb_clusters * sizeof(uint16_t));
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refcount_table = g_try_new0(uint16_t, nb_clusters);
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if (nb_clusters && refcount_table == NULL) {
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res->check_errors++;
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return -ENOMEM;
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@ -1605,8 +1605,8 @@ int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
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/* increase refcount_table size if necessary */
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int old_nb_clusters = nb_clusters;
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nb_clusters = (new_offset >> s->cluster_bits) + 1;
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refcount_table = g_realloc(refcount_table,
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nb_clusters * sizeof(uint16_t));
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refcount_table = g_renew(uint16_t, refcount_table,
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nb_clusters);
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memset(&refcount_table[old_nb_clusters], 0, (nb_clusters
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- old_nb_clusters) * sizeof(uint16_t));
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}
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@ -58,7 +58,7 @@ int qcow2_read_snapshots(BlockDriverState *bs)
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}
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offset = s->snapshots_offset;
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s->snapshots = g_malloc0(s->nb_snapshots * sizeof(QCowSnapshot));
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s->snapshots = g_new0(QCowSnapshot, s->nb_snapshots);
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for(i = 0; i < s->nb_snapshots; i++) {
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/* Read statically sized part of the snapshot header */
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@ -381,7 +381,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
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sn->l1_table_offset = l1_table_offset;
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sn->l1_size = s->l1_size;
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l1_table = g_try_malloc(s->l1_size * sizeof(uint64_t));
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l1_table = g_try_new(uint64_t, s->l1_size);
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if (s->l1_size && l1_table == NULL) {
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ret = -ENOMEM;
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goto fail;
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@ -417,7 +417,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
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}
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/* Append the new snapshot to the snapshot list */
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new_snapshot_list = g_malloc((s->nb_snapshots + 1) * sizeof(QCowSnapshot));
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new_snapshot_list = g_new(QCowSnapshot, s->nb_snapshots + 1);
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if (s->snapshots) {
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memcpy(new_snapshot_list, s->snapshots,
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s->nb_snapshots * sizeof(QCowSnapshot));
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@ -661,7 +661,7 @@ int qcow2_snapshot_list(BlockDriverState *bs, QEMUSnapshotInfo **psn_tab)
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return s->nb_snapshots;
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}
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sn_tab = g_malloc0(s->nb_snapshots * sizeof(QEMUSnapshotInfo));
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sn_tab = g_new0(QEMUSnapshotInfo, s->nb_snapshots);
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for(i = 0; i < s->nb_snapshots; i++) {
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sn_info = sn_tab + i;
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sn = s->snapshots + i;
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@ -517,7 +517,7 @@ static int raw_reopen_prepare(BDRVReopenState *state,
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s = state->bs->opaque;
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state->opaque = g_malloc0(sizeof(BDRVRawReopenState));
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state->opaque = g_new0(BDRVRawReopenState, 1);
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raw_s = state->opaque;
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#ifdef CONFIG_LINUX_AIO
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@ -652,7 +652,7 @@ static BlockDriverAIOCB *rbd_start_aio(BlockDriverState *bs,
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off = sector_num * BDRV_SECTOR_SIZE;
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size = nb_sectors * BDRV_SECTOR_SIZE;
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rcb = g_malloc(sizeof(RADOSCB));
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rcb = g_new(RADOSCB, 1);
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rcb->done = 0;
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rcb->acb = acb;
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rcb->buf = buf;
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@ -873,7 +873,7 @@ static int qemu_rbd_snap_list(BlockDriverState *bs,
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goto done;
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}
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sn_tab = g_malloc0(snap_count * sizeof(QEMUSnapshotInfo));
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sn_tab = g_new0(QEMUSnapshotInfo, snap_count);
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for (i = 0; i < snap_count; i++) {
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const char *snap_name = snaps[i].name;
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@ -1682,7 +1682,7 @@ static int sd_create(const char *filename, QemuOpts *opts,
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uint32_t snapid;
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bool prealloc = false;
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s = g_malloc0(sizeof(BDRVSheepdogState));
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s = g_new0(BDRVSheepdogState, 1);
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memset(tag, 0, sizeof(tag));
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if (strstr(filename, "://")) {
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@ -2273,7 +2273,7 @@ static int sd_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
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uint32_t snapid = 0;
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int ret = 0;
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old_s = g_malloc(sizeof(BDRVSheepdogState));
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old_s = g_new(BDRVSheepdogState, 1);
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memcpy(old_s, s, sizeof(BDRVSheepdogState));
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@ -292,7 +292,7 @@ static int vdi_check(BlockDriverState *bs, BdrvCheckResult *res,
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return -ENOTSUP;
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}
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bmap = g_try_malloc(s->header.blocks_in_image * sizeof(uint32_t));
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bmap = g_try_new(uint32_t, s->header.blocks_in_image);
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if (s->header.blocks_in_image && bmap == NULL) {
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res->check_errors++;
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return -ENOMEM;
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@ -1381,7 +1381,7 @@ static int vhdx_create_new_headers(BlockDriverState *bs, uint64_t image_size,
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int ret = 0;
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VHDXHeader *hdr = NULL;
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hdr = g_malloc0(sizeof(VHDXHeader));
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hdr = g_new0(VHDXHeader, 1);
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hdr->signature = VHDX_HEADER_SIGNATURE;
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hdr->sequence_number = g_random_int();
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@ -1654,7 +1654,7 @@ static int vhdx_create_new_region_table(BlockDriverState *bs,
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/* Populate enough of the BDRVVHDXState to be able to use the
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* pre-existing BAT calculation, translation, and update functions */
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s = g_malloc0(sizeof(BDRVVHDXState));
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s = g_new0(BDRVVHDXState, 1);
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s->chunk_ratio = (VHDX_MAX_SECTORS_PER_BLOCK) *
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(uint64_t) sector_size / (uint64_t) block_size;
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@ -233,7 +233,7 @@ static void vmdk_free_last_extent(BlockDriverState *bs)
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return;
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}
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s->num_extents--;
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s->extents = g_realloc(s->extents, s->num_extents * sizeof(VmdkExtent));
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s->extents = g_renew(VmdkExtent, s->extents, s->num_extents);
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}
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static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
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@ -418,8 +418,7 @@ static int vmdk_add_extent(BlockDriverState *bs,
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return length;
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}
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s->extents = g_realloc(s->extents,
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(s->num_extents + 1) * sizeof(VmdkExtent));
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s->extents = g_renew(VmdkExtent, s->extents, s->num_extents + 1);
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extent = &s->extents[s->num_extents];
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s->num_extents++;
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@ -497,7 +496,7 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent,
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}
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extent->l2_cache =
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g_malloc(extent->l2_size * L2_CACHE_SIZE * sizeof(uint32_t));
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g_new(uint32_t, extent->l2_size * L2_CACHE_SIZE);
|
||||
return 0;
|
||||
fail_l1b:
|
||||
g_free(extent->l1_backup_table);
|
||||
|
@ -2950,7 +2950,7 @@ static int enable_write_target(BDRVVVFATState *s, Error **errp)
|
||||
|
||||
bdrv_set_backing_hd(s->bs, bdrv_new("", &error_abort));
|
||||
s->bs->backing_hd->drv = &vvfat_write_target;
|
||||
s->bs->backing_hd->opaque = g_malloc(sizeof(void*));
|
||||
s->bs->backing_hd->opaque = g_new(void *, 1);
|
||||
*(void**)s->bs->backing_hd->opaque = s;
|
||||
|
||||
return 0;
|
||||
|
@ -108,7 +108,7 @@ void qmp_nbd_server_add(const char *device, bool has_writable, bool writable,
|
||||
|
||||
nbd_export_set_name(exp, device);
|
||||
|
||||
n = g_malloc0(sizeof(NBDCloseNotifier));
|
||||
n = g_new0(NBDCloseNotifier, 1);
|
||||
n->n.notify = nbd_close_notifier;
|
||||
n->exp = exp;
|
||||
bdrv_add_close_notifier(bs, &n->n);
|
||||
|
@ -1094,7 +1094,7 @@ SnapshotInfo *qmp_blockdev_snapshot_delete_internal_sync(const char *device,
|
||||
return NULL;
|
||||
}
|
||||
|
||||
info = g_malloc0(sizeof(SnapshotInfo));
|
||||
info = g_new0(SnapshotInfo, 1);
|
||||
info->id = g_strdup(sn.id_str);
|
||||
info->name = g_strdup(sn.name);
|
||||
info->date_nsec = sn.date_nsec;
|
||||
|
@ -1203,7 +1203,7 @@ void ahci_init(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports)
|
||||
|
||||
s->as = as;
|
||||
s->ports = ports;
|
||||
s->dev = g_malloc0(sizeof(AHCIDevice) * ports);
|
||||
s->dev = g_new0(AHCIDevice, ports);
|
||||
ahci_reg_init(s);
|
||||
/* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */
|
||||
memory_region_init_io(&s->mem, OBJECT(qdev), &ahci_mem_ops, s,
|
||||
|
@ -114,7 +114,7 @@ static char **breakline(char *input, int *count)
|
||||
{
|
||||
int c = 0;
|
||||
char *p;
|
||||
char **rval = g_malloc0(sizeof(char *));
|
||||
char **rval = g_new0(char *, 1);
|
||||
char **tmp;
|
||||
|
||||
while (rval && (p = qemu_strsep(&input, " ")) != NULL) {
|
||||
|
Loading…
Reference in New Issue
Block a user