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block: Make the block accounting functions operate on BlockAcctStats

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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

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;