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block: Extract the BlockAcctStats structure

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Extract the block accounting statistics into a structure so the block device
models can hold them in the future.

CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Eric Blake <eblake@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 15:46:15 +02:00
committed by Kevin Wolf
parent 1a7044bb62
commit 0ddd0ad96a
4 changed files with 24 additions and 18 deletions
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11
block.c
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@@ -3363,8 +3363,8 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs,
bdrv_set_dirty(bs, sector_num, nb_sectors);
if (bs->wr_highest_sector < sector_num + nb_sectors - 1) {
bs->wr_highest_sector = sector_num + nb_sectors - 1;
if (bs->stats.wr_highest_sector < sector_num + nb_sectors - 1) {
bs->stats.wr_highest_sector = sector_num + nb_sectors - 1;
}
if (bs->growable && ret >= 0) {
bs->total_sectors = MAX(bs->total_sectors, sector_num + nb_sectors);
@@ -5588,9 +5588,10 @@ bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie)
{
assert(cookie->type < BDRV_MAX_IOTYPE);
bs->nr_bytes[cookie->type] += cookie->bytes;
bs->nr_ops[cookie->type]++;
bs->total_time_ns[cookie->type] += get_clock() - cookie->start_time_ns;
bs->stats.nr_bytes[cookie->type] += cookie->bytes;
bs->stats.nr_ops[cookie->type]++;
bs->stats.total_time_ns[cookie->type] += get_clock() -
cookie->start_time_ns;
}
void bdrv_img_create(const char *filename, const char *fmt,