9eaafd90d1
On 08/05/13 15:03, Paolo Bonzini wrote: > > [...] > > 1) BlockDriver is a struct in which these function members are > interesting: > > .bdrv_reopen_prepare > .bdrv_co_readv > .bdrv_co_writev > .bdrv_co_is_allocated > .bdrv_co_write_zeroes > .bdrv_co_discard > .bdrv_getlength > .bdrv_get_info > .bdrv_truncate > .bdrv_is_inserted > .bdrv_media_changed > .bdrv_eject > .bdrv_lock_medium > .bdrv_ioctl > .bdrv_aio_ioctl > .bdrv_has_zero_init > > They should be implemented as simple forwarders (see above). There are > 16 functions listed here, you can easily see how this already accounts > for 100+ SLOC roughly... > > The implementations of bdrv_co_readv and bdrv_co_writev should also call > BLKDBG_EVENT on bs->file too, before forwarding to bs->file. The events > to be generated are BLKDBG_READ_AIO and BLKDBG_WRITE_AIO. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* BlockDriver implementation for "raw"
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*
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* Copyright (C) 2013, Red Hat, Inc.
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*
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* Author:
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* Laszlo Ersek <lersek@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "block/block_int.h"
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static TYPE raw_reopen_prepare(BlockDriverState *bs)
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{
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return bdrv_reopen_prepare(bs->file);
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}
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static TYPE raw_co_readv(BlockDriverState *bs)
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{
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BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO);
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return bdrv_co_readv(bs->file);
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}
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static TYPE raw_co_writev(BlockDriverState *bs)
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{
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BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
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return bdrv_co_writev(bs->file);
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}
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static TYPE raw_co_is_allocated(BlockDriverState *bs)
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{
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return bdrv_co_is_allocated(bs->file);
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}
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static TYPE raw_co_write_zeroes(BlockDriverState *bs)
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{
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return bdrv_co_write_zeroes(bs->file);
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}
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static TYPE raw_co_discard(BlockDriverState *bs)
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{
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return bdrv_co_discard(bs->file);
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}
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static TYPE raw_getlength(BlockDriverState *bs)
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{
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return bdrv_getlength(bs->file);
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}
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static TYPE raw_get_info(BlockDriverState *bs)
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{
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return bdrv_get_info(bs->file);
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}
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static TYPE raw_truncate(BlockDriverState *bs)
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{
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return bdrv_truncate(bs->file);
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}
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static TYPE raw_is_inserted(BlockDriverState *bs)
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{
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return bdrv_is_inserted(bs->file);
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}
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static TYPE raw_media_changed(BlockDriverState *bs)
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{
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return bdrv_media_changed(bs->file);
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}
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static TYPE raw_eject(BlockDriverState *bs)
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{
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return bdrv_eject(bs->file);
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}
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static TYPE raw_lock_medium(BlockDriverState *bs)
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{
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return bdrv_lock_medium(bs->file);
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}
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static TYPE raw_ioctl(BlockDriverState *bs)
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{
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return bdrv_ioctl(bs->file);
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}
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static TYPE raw_aio_ioctl(BlockDriverState *bs)
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{
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return bdrv_aio_ioctl(bs->file);
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}
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static TYPE raw_has_zero_init(BlockDriverState *bs)
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{
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return bdrv_has_zero_init(bs->file);
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}
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