block: Make the block accounting functions operate on BlockAcctStats

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>

1 files changed, 11 insertions, 7 deletions

diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
index 4b15af1ac5..6d52cda4cc 100644
--- a/hw/ide/atapi.c
+++ b/hw/ide/atapi.c
@@ -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;