From f6ac207893a661a6c32819c43a2ab2789b40d12f Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Fri, 7 Jul 2017 07:44:54 -0500 Subject: backup: Switch block_backup.h to byte-based We are gradually converting to byte-based interfaces, as they are easier to reason about than sector-based. Continue by converting the public interface to backup jobs (no semantic change), including a change to CowRequest to track by bytes instead of cluster indices. Note that this does not change the difference between the public interface (starting point, and size of the subsequent range) and the internal interface (starting and end points). Signed-off-by: Eric Blake Reviewed-by: John Snow Reviewed-by: Xie Changlong Reviewed-by: Jeff Cody Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- include/block/block_backup.h | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'include/block') diff --git a/include/block/block_backup.h b/include/block/block_backup.h index 8a75947..994a3bd 100644 --- a/include/block/block_backup.h +++ b/include/block/block_backup.h @@ -21,17 +21,16 @@ #include "block/block_int.h" typedef struct CowRequest { - int64_t start; - int64_t end; + int64_t start_byte; + int64_t end_byte; QLIST_ENTRY(CowRequest) list; CoQueue wait_queue; /* coroutines blocked on this request */ } CowRequest; -void backup_wait_for_overlapping_requests(BlockJob *job, int64_t sector_num, - int nb_sectors); +void backup_wait_for_overlapping_requests(BlockJob *job, int64_t offset, + uint64_t bytes); void backup_cow_request_begin(CowRequest *req, BlockJob *job, - int64_t sector_num, - int nb_sectors); + int64_t offset, uint64_t bytes); void backup_cow_request_end(CowRequest *req); void backup_do_checkpoint(BlockJob *job, Error **errp); -- cgit v1.1