cd2bcf1061
This introduces an enhanced spinlock that adds safeguards compared to the default pthread_spinlock_t. In particular: - A pthread_spinlock_t is still used, but additional error checking is performed to ensure there is no undefined behavior on relock, unlocking when not the owner, or destoying a locked lock. - The SPDK concurrency model allows an SPDK thread to be migrated between pthreads. Releasing a pthread spinlock on a different thread from where it is taken is undefined behavior. If an SPDK spinlock is held at a time that a time when a poller or message returns control to thread_poll(), the program will abort. - SPDK spinlocks can only be obtained from an SPDK thread. Signed-off-by: Mike Gerdts <mgerdts@nvidia.com> Change-Id: I6dd6493ab5f5532ae69e20654546405a507eb594 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15277 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Community-CI: Mellanox Build Bot
86 lines
2.1 KiB
Plaintext
86 lines
2.1 KiB
Plaintext
{
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global:
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# public functions in spdk/thread.h
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spdk_thread_lib_init;
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spdk_thread_lib_init_ext;
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spdk_thread_lib_fini;
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spdk_thread_create;
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spdk_thread_get_app_thread;
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spdk_set_thread;
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spdk_thread_exit;
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spdk_thread_is_running;
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spdk_thread_is_exited;
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spdk_thread_destroy;
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spdk_thread_get_ctx;
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spdk_thread_get_cpumask;
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spdk_thread_set_cpumask;
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spdk_thread_get_from_ctx;
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spdk_thread_poll;
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spdk_thread_next_poller_expiration;
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spdk_thread_has_active_pollers;
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spdk_thread_has_pollers;
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spdk_thread_is_idle;
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spdk_thread_get_count;
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spdk_get_thread;
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spdk_thread_get_name;
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spdk_thread_get_id;
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spdk_thread_get_by_id;
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spdk_thread_get_stats;
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spdk_thread_get_last_tsc;
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spdk_thread_send_msg;
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spdk_thread_send_critical_msg;
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spdk_for_each_thread;
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spdk_thread_set_interrupt_mode;
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spdk_poller_register;
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spdk_poller_register_named;
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spdk_poller_unregister;
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spdk_poller_pause;
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spdk_poller_resume;
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spdk_poller_register_interrupt;
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spdk_io_device_register;
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spdk_io_device_unregister;
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spdk_get_io_channel;
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spdk_put_io_channel;
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spdk_io_channel_get_ctx;
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spdk_io_channel_from_ctx;
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spdk_io_channel_get_thread;
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spdk_io_channel_get_io_device;
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spdk_for_each_channel;
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spdk_io_channel_iter_get_io_device;
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spdk_io_channel_iter_get_channel;
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spdk_io_channel_iter_get_ctx;
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spdk_for_each_channel_continue;
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spdk_interrupt_register;
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spdk_interrupt_unregister;
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spdk_interrupt_set_event_types;
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spdk_thread_get_interrupt_fd;
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spdk_interrupt_mode_enable;
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spdk_interrupt_mode_is_enabled;
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spdk_spin_init;
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spdk_spin_destroy;
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spdk_spin_lock;
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spdk_spin_unlock;
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spdk_spin_held;
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# internal functions in spdk_internal/thread.h
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spdk_poller_get_name;
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spdk_poller_get_id;
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spdk_poller_get_state_str;
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spdk_poller_get_period_ticks;
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spdk_poller_get_stats;
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spdk_io_channel_get_io_device_name;
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spdk_io_channel_get_ref_count;
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spdk_io_device_get_name;
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spdk_thread_get_first_active_poller;
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spdk_thread_get_next_active_poller;
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spdk_thread_get_first_timed_poller;
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spdk_thread_get_next_timed_poller;
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spdk_thread_get_first_paused_poller;
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spdk_thread_get_next_paused_poller;
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spdk_thread_get_first_io_channel;
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spdk_thread_get_next_io_channel;
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local: *;
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};
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