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[PULL 16/18] stat64: Add stat64_set() operation
From: |
Juan Quintela |
Subject: |
[PULL 16/18] stat64: Add stat64_set() operation |
Date: |
Thu, 27 Apr 2023 17:22:32 +0200 |
From: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
include/qemu/stats64.h | 6 ++++++
util/stats64.c | 11 +++++++++++
2 files changed, 17 insertions(+)
diff --git a/include/qemu/stats64.h b/include/qemu/stats64.h
index 802402254b..99b5cb724a 100644
--- a/include/qemu/stats64.h
+++ b/include/qemu/stats64.h
@@ -40,6 +40,11 @@ static inline uint64_t stat64_get(const Stat64 *s)
return qatomic_read__nocheck(&s->value);
}
+static inline void stat64_set(Stat64 *s, uint64_t value)
+{
+ qatomic_set__nocheck(&s->value, value);
+}
+
static inline void stat64_add(Stat64 *s, uint64_t value)
{
qatomic_add(&s->value, value);
@@ -62,6 +67,7 @@ static inline void stat64_max(Stat64 *s, uint64_t value)
}
#else
uint64_t stat64_get(const Stat64 *s);
+void stat64_set(Stat64 *s, uint64_t value);
bool stat64_min_slow(Stat64 *s, uint64_t value);
bool stat64_max_slow(Stat64 *s, uint64_t value);
bool stat64_add32_carry(Stat64 *s, uint32_t low, uint32_t high);
diff --git a/util/stats64.c b/util/stats64.c
index 897613c949..09736014ec 100644
--- a/util/stats64.c
+++ b/util/stats64.c
@@ -57,6 +57,17 @@ uint64_t stat64_get(const Stat64 *s)
return ((uint64_t)high << 32) | low;
}
+void stat64_set(Stat64 *s, uint64_t val)
+{
+ while (!stat64_wrtrylock(s)) {
+ cpu_relax();
+ }
+
+ qatomic_set(&s->high, val >> 32);
+ qatomic_set(&s->low, val);
+ stat64_wrunlock(s);
+}
+
bool stat64_add32_carry(Stat64 *s, uint32_t low, uint32_t high)
{
uint32_t old;
--
2.40.0
- [PULL 00/18] Migration 20230427 patches, Juan Quintela, 2023/04/27
- [PULL 04/18] migration: Create migrate_downtime_limit() function, Juan Quintela, 2023/04/27
- [PULL 10/18] migration: Create migrate_tls_hostname() function, Juan Quintela, 2023/04/27
- [PULL 06/18] migration: Move block_cleanup_parameters() to options.c, Juan Quintela, 2023/04/27
- [PULL 01/18] multifd: Fix the number of channels ready, Juan Quintela, 2023/04/27
- [PULL 17/18] migration: Make dirty_pages_rate atomic, Juan Quintela, 2023/04/27
- [PULL 14/18] multifd: Protect multifd_send_sync_main() calls, Juan Quintela, 2023/04/27
- [PULL 13/18] multifd: Create property multifd-flush-after-each-section, Juan Quintela, 2023/04/27
- [PULL 05/18] migration: Move migrate_set_block_incremental() to options.c, Juan Quintela, 2023/04/27
- [PULL 16/18] stat64: Add stat64_set() operation,
Juan Quintela <=
- [PULL 18/18] migration: Make dirty_bytes_last_sync atomic, Juan Quintela, 2023/04/27
- [PULL 07/18] migration: Remove MigrationState from block_cleanup_parameters(), Juan Quintela, 2023/04/27
- [PULL 08/18] migration: Create migrate_tls_creds() function, Juan Quintela, 2023/04/27
- [PULL 15/18] multifd: Only flush once each full round of memory, Juan Quintela, 2023/04/27
- [PULL 11/18] migration: Create migrate_block_bitmap_mapping() function, Juan Quintela, 2023/04/27
- [PULL 09/18] migration: Create migrate_tls_authz() function, Juan Quintela, 2023/04/27
- [PULL 02/18] migration: Create migrate_params_init() function, Juan Quintela, 2023/04/27
- [PULL 12/18] migration: Move migration_properties to options.c, Juan Quintela, 2023/04/27
- [PULL 03/18] migration: Make all functions check have the same format, Juan Quintela, 2023/04/27
- Re: [PULL 00/18] Migration 20230427 patches, Richard Henderson, 2023/04/28