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-rw-r--r--block-migration.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/block-migration.c b/block-migration.c
index 5aff5a7183..a0dcdadb20 100644
--- a/block-migration.c
+++ b/block-migration.c
@@ -321,10 +321,12 @@ static int blk_mig_save_bulked_block(QEMUFile *f, int is_async)
static void blk_mig_save_dirty_blocks(QEMUFile *f)
{
BlkMigDevState *bmds;
- uint8_t buf[BLOCK_SIZE];
+ uint8_t *buf;
int64_t sector;
int len;
+ buf = qemu_malloc(BLOCK_SIZE);
+
for (bmds = block_mig_state->bmds_first; bmds != NULL; bmds = bmds->next) {
for (sector = 0; sector < bmds->cur_sector;) {
if (bdrv_get_dirty(bmds->bs, sector)) {
@@ -350,6 +352,8 @@ static void blk_mig_save_dirty_blocks(QEMUFile *f)
sector += BDRV_SECTORS_PER_DIRTY_CHUNK;
}
}
+
+ qemu_free(buf);
}
static void flush_blks(QEMUFile* f)
@@ -458,8 +462,6 @@ static int block_load(QEMUFile *f, void *opaque, int version_id)
BlockDriverState *bs;
uint8_t *buf;
- buf = qemu_malloc(BLOCK_SIZE);
-
do {
addr = qemu_get_be64(f);
@@ -475,6 +477,8 @@ static int block_load(QEMUFile *f, void *opaque, int version_id)
bs = bdrv_find(device_name);
+ buf = qemu_malloc(BLOCK_SIZE);
+
qemu_get_buffer(f, buf, BLOCK_SIZE);
if (bs != NULL) {
bdrv_write(bs, addr, buf, BDRV_SECTORS_PER_DIRTY_CHUNK);
@@ -482,14 +486,14 @@ static int block_load(QEMUFile *f, void *opaque, int version_id)
printf("Error unknown block device %s\n", device_name);
/* FIXME: add error handling */
}
+
+ qemu_free(buf);
} else if (!(flags & BLK_MIG_FLAG_EOS)) {
printf("Unknown flags\n");
/* FIXME: add error handling */
}
} while (!(flags & BLK_MIG_FLAG_EOS));
- qemu_free(buf);
-
return 0;
}