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block/backup: move in-flight requests handling from backup to block-copy

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Move synchronization mechanism to block-copy, to be able to use one
block-copy instance from backup job and backup-top filter in parallel.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191001131409.14202-2-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-10-01 16:14:05 +03:00 • committed by Max Reitz
parent f2d86ade4d
commit a6ffe1998c
3 changed files with 51 additions and 52 deletions
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8
include/block/block-copy.h
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@ -17,6 +17,13 @@
#include "block/block.h"
typedef struct BlockCopyInFlightReq {
int64_t start_byte;
int64_t end_byte;
QLIST_ENTRY(BlockCopyInFlightReq) list;
CoQueue wait_queue; /* coroutines blocked on this request */
} BlockCopyInFlightReq;
typedef void (*ProgressBytesCallbackFunc)(int64_t bytes, void *opaque);
typedef void (*ProgressResetCallbackFunc)(void *opaque);
typedef struct BlockCopyState {
@ -27,6 +34,7 @@ typedef struct BlockCopyState {
bool use_copy_range;
int64_t copy_range_size;
uint64_t len;
QLIST_HEAD(, BlockCopyInFlightReq) inflight_reqs;
BdrvRequestFlags write_flags;