diff options
| -rw-r--r-- | block.c | 6 | ||||
| -rw-r--r-- | include/block/block_int.h | 2 |
2 files changed, 5 insertions, 3 deletions
@@ -654,8 +654,8 @@ BlockDriver *bdrv_find_protocol(const char *filename, * we do it anyway for backward compatibility. * * @buf contains the image's first @buf_size bytes. - * @buf_size is the buffer size in bytes (generally 2048, but can be smaller - * if the image file is smaller) + * @buf_size is the buffer size in bytes (generally BLOCK_PROBE_BUF_SIZE, + * but can be smaller if the image file is smaller) * @filename is its filename. * * For all block drivers, call the bdrv_probe() method to get its @@ -685,7 +685,7 @@ static int find_image_format(BlockDriverState *bs, const char *filename, BlockDriver **pdrv, Error **errp) { BlockDriver *drv; - uint8_t buf[2048]; + uint8_t buf[BLOCK_PROBE_BUF_SIZE]; int ret = 0; /* Return the raw BlockDriver * to scsi-generic devices or empty drives */ diff --git a/include/block/block_int.h b/include/block/block_int.h index a1c17b9578..cd94559a64 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -57,6 +57,8 @@ #define BLOCK_OPT_REDUNDANCY "redundancy" #define BLOCK_OPT_NOCOW "nocow" +#define BLOCK_PROBE_BUF_SIZE 512 + typedef struct BdrvTrackedRequest { BlockDriverState *bs; int64_t offset; |