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block: split flags in copy_range

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Pass read flags and write flags separately. This is needed to handle
coming BDRV_REQ_NO_SERIALISING clearly in following patches.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-07-09 19:37:17 +03:00 • committed by Kevin Wolf
parent 999658a05e
commit 67b51fb998
11 changed files with 90 additions and 59 deletions
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5
block/block-backend.c
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@ -2218,7 +2218,8 @@ void blk_unregister_buf(BlockBackend *blk, void *host)
int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
BlockBackend *blk_out, int64_t off_out,
int bytes, BdrvRequestFlags flags)
int bytes, BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags)
{
int r;
r = blk_check_byte_request(blk_in, off_in, bytes);
@ -2231,5 +2232,5 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
}
return bdrv_co_copy_range(blk_in->root, off_in,
blk_out->root, off_out,
bytes, flags);
bytes, read_flags, write_flags);
}