From 1ef01253eb90d0c69129c817e85fa92f9d45602a Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Thu, 5 Feb 2015 13:58:10 -0500 Subject: [PATCH] block: Lift some BDS functions to the BlockBackend Create the blk_* counterparts for the following bdrv_* functions (which make sense to call on the BlockBackend level): - bdrv_co_write_zeroes() - bdrv_write_compressed() - bdrv_truncate() - bdrv_nb_sectors() - bdrv_discard() - bdrv_load_vmstate() - bdrv_save_vmstate() Signed-off-by: Max Reitz Reviewed-by: Eric Blake Message-id: 1423162705-32065-2-git-send-email-mreitz@redhat.com Signed-off-by: Stefan Hajnoczi --- block/block-backend.c | 38 ++++++++++++++++++++++++++++++++++ include/sysemu/block-backend.h | 10 +++++++++ 2 files changed, 48 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index c28e2402c7..7dc985c070 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -440,6 +440,11 @@ void blk_get_geometry(BlockBackend *blk, uint64_t *nb_sectors_ptr) bdrv_get_geometry(blk->bs, nb_sectors_ptr); } +int64_t blk_nb_sectors(BlockBackend *blk) +{ + return bdrv_nb_sectors(blk->bs); +} + BlockAIOCB *blk_aio_readv(BlockBackend *blk, int64_t sector_num, QEMUIOVector *iov, int nb_sectors, BlockCompletionFunc *cb, void *opaque) @@ -668,3 +673,36 @@ void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, { return qemu_aio_get(aiocb_info, blk_bs(blk), cb, opaque); } + +int coroutine_fn blk_co_write_zeroes(BlockBackend *blk, int64_t sector_num, + int nb_sectors, BdrvRequestFlags flags) +{ + return bdrv_co_write_zeroes(blk->bs, sector_num, nb_sectors, flags); +} + +int blk_write_compressed(BlockBackend *blk, int64_t sector_num, + const uint8_t *buf, int nb_sectors) +{ + return bdrv_write_compressed(blk->bs, sector_num, buf, nb_sectors); +} + +int blk_truncate(BlockBackend *blk, int64_t offset) +{ + return bdrv_truncate(blk->bs, offset); +} + +int blk_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors) +{ + return bdrv_discard(blk->bs, sector_num, nb_sectors); +} + +int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf, + int64_t pos, int size) +{ + return bdrv_save_vmstate(blk->bs, buf, pos, size); +} + +int blk_load_vmstate(BlockBackend *blk, uint8_t *buf, int64_t pos, int size) +{ + return bdrv_load_vmstate(blk->bs, buf, pos, size); +} diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index aab12b982c..4ef0407536 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -91,6 +91,7 @@ int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int count); int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int count); int64_t blk_getlength(BlockBackend *blk); void blk_get_geometry(BlockBackend *blk, uint64_t *nb_sectors_ptr); +int64_t blk_nb_sectors(BlockBackend *blk); BlockAIOCB *blk_aio_readv(BlockBackend *blk, int64_t sector_num, QEMUIOVector *iov, int nb_sectors, BlockCompletionFunc *cb, void *opaque); @@ -151,5 +152,14 @@ BlockAcctStats *blk_get_stats(BlockBackend *blk); void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, BlockCompletionFunc *cb, void *opaque); +int coroutine_fn blk_co_write_zeroes(BlockBackend *blk, int64_t sector_num, + int nb_sectors, BdrvRequestFlags flags); +int blk_write_compressed(BlockBackend *blk, int64_t sector_num, + const uint8_t *buf, int nb_sectors); +int blk_truncate(BlockBackend *blk, int64_t offset); +int blk_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors); +int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf, + int64_t pos, int size); +int blk_load_vmstate(BlockBackend *blk, uint8_t *buf, int64_t pos, int size); #endif -- GitLab