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mio concurrency

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Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
Adam Rutkowski
2021-04-03 21:26:41 -05:00
committed by Kozlowski Mateusz
parent 69c3c6761b
commit 06f3c937c3
5 changed files with 211 additions and 28 deletions
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72
src/utils/utils_alock.c
View File

@@ -62,78 +62,94 @@ struct ocf_alock {
};
int ocf_alock_init(struct ocf_alock **self, unsigned num_entries,
size_t ocf_alock_obj_size(void)
{
return sizeof(struct ocf_alock);
}
int ocf_alock_init_inplace(struct ocf_alock *self, unsigned num_entries,
const char* name, ocf_cache_t cache)
{
uint32_t i;
int error = 0;
struct ocf_alock *alock;
OCF_DEBUG_TRACE(cache);
alock = env_vzalloc(sizeof(*alock));
if (!alock) {
error = __LINE__;
goto exit_err;
}
self->cache = cache;
self->num_entries = num_entries;
alock->cache = cache;
alock->num_entries = num_entries;
error = env_mutex_init(&alock->lock);
error = env_mutex_init(&self->lock);
if (error) {
error = __LINE__;
goto rwsem_err;
}
alock->access = env_vzalloc(num_entries * sizeof(alock->access[0]));
self->access = env_vzalloc(num_entries * sizeof(self->access[0]));
if (!alock->access) {
if (!self->access) {
error = __LINE__;
goto allocation_err;
}
alock->allocator = env_allocator_create(sizeof(struct ocf_alock_waiter), name, false);
if (!alock->allocator) {
self->allocator = env_allocator_create(sizeof(struct ocf_alock_waiter), name, false);
if (!self->allocator) {
error = __LINE__;
goto allocation_err;
}
/* Init concurrency control table */
for (i = 0; i < _WAITERS_LIST_ENTRIES; i++) {
INIT_LIST_HEAD(&alock->waiters_lsts[i].head);
error = env_spinlock_init(&alock->waiters_lsts[i].lock);
INIT_LIST_HEAD(&self->waiters_lsts[i].head);
error = env_spinlock_init(&self->waiters_lsts[i].lock);
if (error) {
error = __LINE__;
goto spinlock_err;
}
}
*self = alock;
return 0;
spinlock_err:
while (i--)
env_spinlock_destroy(&alock->waiters_lsts[i].lock);
env_spinlock_destroy(&self->waiters_lsts[i].lock);
allocation_err:
if (alock->allocator)
env_allocator_destroy(alock->allocator);
if (self->allocator)
env_allocator_destroy(self->allocator);
if (alock->access)
env_vfree(alock->access);
if (self->access)
env_vfree(self->access);
rwsem_err:
env_mutex_destroy(&alock->lock);
env_mutex_destroy(&self->lock);
exit_err:
ocf_cache_log(cache, log_err, "Cannot initialize cache concurrency, "
"ERROR %d", error);
if (alock)
return -1;
}
int ocf_alock_init(struct ocf_alock **self, unsigned num_entries,
const char* name, ocf_cache_t cache)
{
struct ocf_alock *alock;
int ret;
OCF_DEBUG_TRACE(cache);
alock = env_vzalloc(sizeof(*alock));
if (!alock)
return -OCF_ERR_NO_MEM;
ret = ocf_alock_init_inplace(alock, num_entries,
name, cache);
if (!ret)
*self = alock;
else
env_vfree(alock);
*self = NULL;
return -1;
return ret;
}
void ocf_alock_deinit(struct ocf_alock **self)

5
src/utils/utils_alock.h
View File

@@ -87,6 +87,11 @@ bool ocf_alock_is_locked_exclusively(struct ocf_alock *alock,
uint32_t ocf_alock_waitlist_count(struct ocf_alock *alock);
size_t ocf_alock_obj_size(void);
int ocf_alock_init_inplace(struct ocf_alock *self, unsigned num_entries,
const char* name, ocf_cache_t cache);
int ocf_alock_init(struct ocf_alock **self, unsigned num_entries,
const char* name, ocf_cache_t cache);