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block: drop BlockBackendRootState::read_only

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Instead of keeping additional boolean field, let's store the
information in BDRV_O_RDWR bit of BlockBackendRootState::open_flags.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210527154056.70294-4-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-05-27 18:40:56 +03:00 • committed by Kevin Wolf
parent 975da07374
commit 260242a833
3 changed files with 3 additions and 11 deletions
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1
include/block/block_int.h
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@ -1007,7 +1007,6 @@ struct BlockDriverState {
struct BlockBackendRootState {
int open_flags;
bool read_only;
BlockdevDetectZeroesOptions detect_zeroes;
};