From 36e3b2e7338a5a5323f7ca9d8d4d439e971a18dd Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Fri, 15 Jul 2016 17:22:55 -0600 Subject: [PATCH] raw-posix: Switch paio_submit() to byte-based The only remaining uses of paio_submit() were flush (with no offset or count) and discard (which we are switching to byte-based); furthermore, the similarly named paio_submit_co() is already byte-based. Signed-off-by: Eric Blake Reviewed-by: Stefan Hajnoczi Message-id: 1468624988-423-7-git-send-email-eblake@redhat.com Signed-off-by: Stefan Hajnoczi --- block/raw-posix.c | 14 ++++++++------ block/raw-win32.c | 19 +++++++++++-------- block/trace-events | 2 +- 3 files changed, 20 insertions(+), 15 deletions(-) diff --git a/block/raw-posix.c b/block/raw-posix.c index 20f4d7aa8d..b48efb3859 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -1214,7 +1214,7 @@ static int paio_submit_co(BlockDriverState *bs, int fd, } static BlockAIOCB *paio_submit(BlockDriverState *bs, int fd, - int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, + int64_t offset, QEMUIOVector *qiov, int count, BlockCompletionFunc *cb, void *opaque, int type) { RawPosixAIOData *acb = g_new(RawPosixAIOData, 1); @@ -1224,8 +1224,8 @@ static BlockAIOCB *paio_submit(BlockDriverState *bs, int fd, acb->aio_type = type; acb->aio_fildes = fd; - acb->aio_nbytes = nb_sectors * BDRV_SECTOR_SIZE; - acb->aio_offset = sector_num * BDRV_SECTOR_SIZE; + acb->aio_nbytes = count; + acb->aio_offset = offset; if (qiov) { acb->aio_iov = qiov->iov; @@ -1233,7 +1233,7 @@ static BlockAIOCB *paio_submit(BlockDriverState *bs, int fd, assert(qiov->size == acb->aio_nbytes); } - trace_paio_submit(acb, opaque, sector_num, nb_sectors, type); + trace_paio_submit(acb, opaque, offset, count, type); pool = aio_get_thread_pool(bdrv_get_aio_context(bs)); return thread_pool_submit_aio(pool, aio_worker, acb, cb, opaque); } @@ -1792,7 +1792,8 @@ static coroutine_fn BlockAIOCB *raw_aio_discard(BlockDriverState *bs, { BDRVRawState *s = bs->opaque; - return paio_submit(bs, s->fd, sector_num, NULL, nb_sectors, + return paio_submit(bs, s->fd, sector_num << BDRV_SECTOR_BITS, NULL, + nb_sectors << BDRV_SECTOR_BITS, cb, opaque, QEMU_AIO_DISCARD); } @@ -2212,7 +2213,8 @@ static coroutine_fn BlockAIOCB *hdev_aio_discard(BlockDriverState *bs, if (fd_open(bs) < 0) { return NULL; } - return paio_submit(bs, s->fd, sector_num, NULL, nb_sectors, + return paio_submit(bs, s->fd, sector_num << BDRV_SECTOR_BITS, NULL, + nb_sectors << BDRV_SECTOR_BITS, cb, opaque, QEMU_AIO_DISCARD|QEMU_AIO_BLKDEV); } diff --git a/block/raw-win32.c b/block/raw-win32.c index 9b813d99ae..56f45fea9e 100644 --- a/block/raw-win32.c +++ b/block/raw-win32.c @@ -142,7 +142,7 @@ static int aio_worker(void *arg) } static BlockAIOCB *paio_submit(BlockDriverState *bs, HANDLE hfile, - int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, + int64_t offset, QEMUIOVector *qiov, int count, BlockCompletionFunc *cb, void *opaque, int type) { RawWin32AIOData *acb = g_new(RawWin32AIOData, 1); @@ -155,11 +155,12 @@ static BlockAIOCB *paio_submit(BlockDriverState *bs, HANDLE hfile, if (qiov) { acb->aio_iov = qiov->iov; acb->aio_niov = qiov->niov; + assert(qiov->size == count); } - acb->aio_nbytes = nb_sectors * 512; - acb->aio_offset = sector_num * 512; + acb->aio_nbytes = count; + acb->aio_offset = offset; - trace_paio_submit(acb, opaque, sector_num, nb_sectors, type); + trace_paio_submit(acb, opaque, offset, count, type); pool = aio_get_thread_pool(bdrv_get_aio_context(bs)); return thread_pool_submit_aio(pool, aio_worker, acb, cb, opaque); } @@ -378,9 +379,10 @@ static BlockAIOCB *raw_aio_readv(BlockDriverState *bs, BDRVRawState *s = bs->opaque; if (s->aio) { return win32_aio_submit(bs, s->aio, s->hfile, sector_num, qiov, - nb_sectors, cb, opaque, QEMU_AIO_READ); + nb_sectors, cb, opaque, QEMU_AIO_READ); } else { - return paio_submit(bs, s->hfile, sector_num, qiov, nb_sectors, + return paio_submit(bs, s->hfile, sector_num << BDRV_SECTOR_BITS, qiov, + nb_sectors << BDRV_SECTOR_BITS, cb, opaque, QEMU_AIO_READ); } } @@ -392,9 +394,10 @@ static BlockAIOCB *raw_aio_writev(BlockDriverState *bs, BDRVRawState *s = bs->opaque; if (s->aio) { return win32_aio_submit(bs, s->aio, s->hfile, sector_num, qiov, - nb_sectors, cb, opaque, QEMU_AIO_WRITE); + nb_sectors, cb, opaque, QEMU_AIO_WRITE); } else { - return paio_submit(bs, s->hfile, sector_num, qiov, nb_sectors, + return paio_submit(bs, s->hfile, sector_num << BDRV_SECTOR_BITS, qiov, + nb_sectors << BDRV_SECTOR_BITS, cb, opaque, QEMU_AIO_WRITE); } } diff --git a/block/trace-events b/block/trace-events index 90d618a107..978ef4f02a 100644 --- a/block/trace-events +++ b/block/trace-events @@ -58,7 +58,7 @@ qmp_block_stream(void *bs, void *job) "bs %p job %p" # block/raw-win32.c # block/raw-posix.c paio_submit_co(int64_t offset, int count, int type) "offset %"PRId64" count %d type %d" -paio_submit(void *acb, void *opaque, int64_t sector_num, int nb_sectors, int type) "acb %p opaque %p sector_num %"PRId64" nb_sectors %d type %d" +paio_submit(void *acb, void *opaque, int64_t offset, int count, int type) "acb %p opaque %p offset %"PRId64" count %d type %d" # block/qcow2.c qcow2_writev_start_req(void *co, int64_t offset, int bytes) "co %p offset %" PRIx64 " bytes %d" -- 2.11.4.GIT