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block: split BlockAcctStats creation and setup

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block_acct_destroy is called unconditionally in blk_delete, but there is
no BlockAcctStats function that is called unconditionally in blk_new.
Split block_acct_init in two, so that it will be possible to create a
QemuMutex in block_acct_init and destroy it in block_acct_cleanup.

Cc: Alberto Garcia <berto@igalia.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170605123908.18777-19-pbonzini@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-06-05 14:39:07 +02:00 committed by Fam Zheng
parent 39c1b4254e
commit 9caa6f3dbe
4 changed files with 12 additions and 7 deletions
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13
block/accounting.c
View File

@ -32,15 +32,18 @@
static QEMUClockType clock_type = QEMU_CLOCK_REALTIME;
static const int qtest_latency_ns = NANOSECONDS_PER_SECOND / 1000;
void block_acct_init(BlockAcctStats *stats, bool account_invalid,
void block_acct_init(BlockAcctStats *stats)
{
if (qtest_enabled()) {
clock_type = QEMU_CLOCK_VIRTUAL;
}
}
void block_acct_setup(BlockAcctStats *stats, bool account_invalid,
bool account_failed)
{
stats->account_invalid = account_invalid;
stats->account_failed = account_failed;
if (qtest_enabled()) {
clock_type = QEMU_CLOCK_VIRTUAL;
}
}
void block_acct_cleanup(BlockAcctStats *stats)

1
block/block-backend.c
View File

@ -219,6 +219,7 @@ BlockBackend *blk_new(uint64_t perm, uint64_t shared_perm)
qemu_co_mutex_init(&blk->public.throttled_reqs_lock);
qemu_co_queue_init(&blk->public.throttled_reqs[0]);
qemu_co_queue_init(&blk->public.throttled_reqs[1]);
block_acct_init(&blk->stats);
notifier_list_init(&blk->remove_bs_notifiers);
notifier_list_init(&blk->insert_bs_notifiers);

2
blockdev.c
View File

@ -595,7 +595,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
autostart = 0;
}
block_acct_init(blk_get_stats(blk), account_invalid, account_failed);
block_acct_setup(blk_get_stats(blk), account_invalid, account_failed);
if (!parse_stats_intervals(blk_get_stats(blk), interval_list, errp)) {
blk_unref(blk);

3
include/block/accounting.h
View File

@ -61,7 +61,8 @@ typedef struct BlockAcctCookie {
enum BlockAcctType type;
} BlockAcctCookie;
void block_acct_init(BlockAcctStats *stats, bool account_invalid,
void block_acct_init(BlockAcctStats *stats);
void block_acct_setup(BlockAcctStats *stats, bool account_invalid,
bool account_failed);
void block_acct_cleanup(BlockAcctStats *stats);
void block_acct_add_interval(BlockAcctStats *stats, unsigned interval_length);