diff options
Diffstat (limited to 'include/block/block_int.h')
| -rw-r--r-- | include/block/block_int.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index 205715600b..7d2b152779 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -338,11 +338,14 @@ typedef struct BlockLimits { * power of 2, and less than max_pwrite_zeroes if that is set */ uint32_t pwrite_zeroes_alignment; - /* optimal transfer length in sectors */ - int opt_transfer_length; - - /* maximal transfer length in sectors */ - int max_transfer_length; + /* optimal transfer length in bytes (must be power of 2, and + * multiple of bs->request_alignment), or 0 if no preferred size */ + uint32_t opt_transfer; + + /* maximal transfer length in bytes (need not be power of 2, but + * should be multiple of opt_transfer), or 0 for no 32-bit limit. + * For now, anything larger than INT_MAX is clamped down. */ + uint32_t max_transfer; /* memory alignment so that no bounce buffer is needed */ size_t min_mem_alignment; |