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block: Make the block accounting functions operate on BlockAcctStats

Browse source 
This is the next step for decoupling block accounting functions from
BlockDriverState.
In a future commit the BlockAcctStats structure will be moved from
BlockDriverState to the device models structures.

Note that bdrv_get_stats was introduced so device models can retrieve the
BlockAcctStats structure of a BlockDriverState without being aware of it's
layout.
This function should go away when BlockAcctStats will be embedded in the device
models structures.

CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Keith Busch <keith.busch@intel.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: "Michael S. Tsirkin" <mst@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Eric Blake <eblake@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Michael Tokarev <mjt@tls.msk.ru>
CC: John Snow <jsnow@redhat.com>
CC: Markus Armbruster <armbru@redhat.com>
CC: Alexander Graf <agraf@suse.de>
CC: Max Reitz <mreitz@redhat.com>

Signed-off-by: Benoît Canet <benoit.canet@nodalink.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Benoît Canet 2014-09-05 15:46:18 +02:00 • committed by Kevin Wolf
parent 28298fd3d9
commit 5366d0c8bc
13 changed files with 108 additions and 79 deletions
Download patch file Download diff file Expand all files Collapse all files

3
hw/ide/ahci.c
View file

@ -809,7 +809,8 @@ static void ncq_cb(void *opaque, int ret)
DPRINTF(ncq_tfs->drive->port_no, "NCQ transfer tag %d finished\n",
ncq_tfs->tag);
bdrv_acct_done(ncq_tfs->drive->port.ifs[0].bs, &ncq_tfs->acct);
block_acct_done(bdrv_get_stats(ncq_tfs->drive->port.ifs[0].bs),
&ncq_tfs->acct);
qemu_sglist_destroy(&ncq_tfs->sglist);
ncq_tfs->used = 0;
}

18
hw/ide/atapi.c
View file

@ -110,14 +110,16 @@ static int cd_read_sector(IDEState *s, int lba, uint8_t *buf, int sector_size)
switch(sector_size) {
case 2048:
bdrv_acct_start(s->bs, &s->acct, 4 * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct,
4 * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
ret = bdrv_read(s->bs, (int64_t)lba << 2, buf, 4);
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
break;
case 2352:
bdrv_acct_start(s->bs, &s->acct, 4 * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct,
4 * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
ret = bdrv_read(s->bs, (int64_t)lba << 2, buf + 16, 4);
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
if (ret < 0)
return ret;
cd_data_to_raw(buf, lba);
@ -253,7 +255,8 @@ static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size)
s->io_buffer_index = 0;
if (s->atapi_dma) {
bdrv_acct_start(s->bs, &s->acct, size, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, size,
BLOCK_ACCT_READ);
s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
ide_start_dma(s, ide_atapi_cmd_read_dma_cb);
} else {
@ -354,7 +357,7 @@ static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret)
return;
eot:
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
ide_set_inactive(s, false);
}
@ -369,7 +372,8 @@ static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors,
s->io_buffer_size = 0;
s->cd_sector_size = sector_size;
bdrv_acct_start(s->bs, &s->acct, s->packet_transfer_size, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, s->packet_transfer_size,
BLOCK_ACCT_READ);
/* XXX: check if BUSY_STAT should be set */
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;

24
hw/ide/core.c
View file

@ -568,7 +568,7 @@ static void ide_sector_read_cb(void *opaque, int ret)
s->pio_aiocb = NULL;
s->status &= ~BUSY_STAT;
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
if (ret != 0) {
if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
IDE_RETRY_READ)) {
@ -624,7 +624,8 @@ void ide_sector_read(IDEState *s)
s->iov.iov_len = n * BDRV_SECTOR_SIZE;
qemu_iovec_init_external(&s->qiov, &s->iov, 1);
bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct,
n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
s->pio_aiocb = bdrv_aio_readv(s->bs, sector_num, &s->qiov, n,
ide_sector_read_cb, s);
}
@ -756,7 +757,7 @@ void ide_dma_cb(void *opaque, int ret)
eot:
if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
}
ide_set_inactive(s, stay_active);
}
@ -770,12 +771,12 @@ static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
switch (dma_cmd) {
case IDE_DMA_READ:
bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct,
s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
break;
case IDE_DMA_WRITE:
bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
BLOCK_ACCT_WRITE);
block_acct_start(bdrv_get_stats(s->bs), &s->acct,
s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
break;
default:
break;
@ -802,7 +803,7 @@ static void ide_sector_write_cb(void *opaque, int ret)
IDEState *s = opaque;
int n;
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
s->pio_aiocb = NULL;
s->status &= ~BUSY_STAT;
@ -869,7 +870,8 @@ void ide_sector_write(IDEState *s)
s->iov.iov_len = n * BDRV_SECTOR_SIZE;
qemu_iovec_init_external(&s->qiov, &s->iov, 1);
bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct,
n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
s->pio_aiocb = bdrv_aio_writev(s->bs, sector_num, &s->qiov, n,
ide_sector_write_cb, s);
}
@ -888,7 +890,7 @@ static void ide_flush_cb(void *opaque, int ret)
}
if (s->bs) {
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
}
s->status = READY_STAT | SEEK_STAT;
ide_cmd_done(s);
@ -903,7 +905,7 @@ void ide_flush_cache(IDEState *s)
}
s->status |= BUSY_STAT;
bdrv_acct_start(s->bs, &s->acct, 0, BLOCK_ACCT_FLUSH);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, 0, BLOCK_ACCT_FLUSH);
s->pio_aiocb = bdrv_aio_flush(s->bs, ide_flush_cb, s);
}

19
hw/ide/macio.c
View file

@ -171,7 +171,7 @@ static void pmac_ide_atapi_transfer_cb(void *opaque, int ret)
done:
MACIO_DPRINTF("done DMA\n");
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
io->dma_end(opaque);
}
@ -352,7 +352,7 @@ static void pmac_ide_transfer_cb(void *opaque, int ret)
done:
if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
}
io->dma_end(io);
}
@ -370,8 +370,8 @@ static void pmac_ide_transfer(DBDMA_io *io)
/* Handle non-block ATAPI DMA transfers */
if (s->lba == -1) {
s->io_buffer_size = MIN(io->len, s->packet_transfer_size);
bdrv_acct_start(s->bs, &s->acct, s->io_buffer_size,
BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, s->io_buffer_size,
BLOCK_ACCT_READ);
MACIO_DPRINTF("non-block ATAPI DMA transfer size: %d\n",
s->io_buffer_size);
@ -382,22 +382,25 @@ static void pmac_ide_transfer(DBDMA_io *io)
m->dma_active = false;
MACIO_DPRINTF("end of non-block ATAPI DMA transfer\n");
bdrv_acct_done(s->bs, &s->acct);
block_acct_done(bdrv_get_stats(s->bs), &s->acct);
io->dma_end(io);
return;
}
bdrv_acct_start(s->bs, &s->acct, io->len, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, io->len,
BLOCK_ACCT_READ);
pmac_ide_atapi_transfer_cb(io, 0);
return;
}
switch (s->dma_cmd) {
case IDE_DMA_READ:
bdrv_acct_start(s->bs, &s->acct, io->len, BLOCK_ACCT_READ);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, io->len,
BLOCK_ACCT_READ);
break;
case IDE_DMA_WRITE:
bdrv_acct_start(s->bs, &s->acct, io->len, BLOCK_ACCT_WRITE);
block_acct_start(bdrv_get_stats(s->bs), &s->acct, io->len,
BLOCK_ACCT_WRITE);
break;
default:
break;