__ceph_lookup_mds_session identifier - Linux source code next-20260811

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

fs/ceph/mds_client.h, line 618 (as a prototype)

Defined in 1 files as a function:

fs/ceph/mds_client.c, line 982 (as a function)

Referenced in 4 files:

Smatch caller information:

fs/ceph/metric.c metric_get_session() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	0	mdsc->stopping	0
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
DATA_SOURCE	0	mdsc	$0
PARAM_COMPARE	1	mds	< $0->max_sessions
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/mds_client.c __do_request() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->fsc	4096-ptr_max
PARAM_VALUE	0	mdsc->fsc->mount_state	s32min-3,5,7-s32max
PARAM_VALUE	0	mdsc->mdsmap	4096-ptr_max
PARAM_VALUE	0	mdsc->mdsmap->possible_max_rank	1-u32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->snap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	mdsc->snap_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	mds	0-s32max
BUF_SIZE	0	mdsc->mdsmap	(-1),104
CAPPED_DATA	1	mds	1
DATA_SOURCE	0	mdsc	$0
DATA_SOURCE	1	mds	r __choose_mds
PARAM_COMPARE	1	mds	< $0->mdsmap->possible_max_rank
NOSPEC	0	mdsc->mdsmap->possible_max_rank
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	mdsc->fsc->max_file_size	s64min-9223372036854775806[c]
USER_DATA	0	mdsc->mdsmap->m_cas_pg_pool	0-u64max
USER_DATA	0	mdsc->mdsmap->m_client_epoch	0-u32max
USER_DATA	0	mdsc->mdsmap->m_enabled	0-1
USER_DATA	0	mdsc->mdsmap->m_last_failure	0-u32max
USER_DATA	0	mdsc->mdsmap->m_max_file_size	0-u64max
USER_DATA	0	mdsc->mdsmap->m_max_mds	0-u32max
USER_DATA	0	mdsc->mdsmap->m_max_xattr_size	0-u64max
USER_DATA	0	mdsc->mdsmap->m_num_data_pg_pools	s32min-s32max
USER_DATA	0	mdsc->mdsmap->m_root	0-u32max
USER_DATA	0	mdsc->mdsmap->m_session_autoclose	0-u32max
USER_DATA	0	mdsc->mdsmap->m_session_timeout	0-u32max
USER_DATA	0	mdsc->mdsmap->possible_max_rank	1-u32max
USER_DATA	1	mds	0-s32max[c]
LOCK2	0	&mdsc->mutex
HALF_LOCKED2	0	&mdsc->snap_rwsem
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/mds_client.c __open_export_target_session() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->fsc	4096-ptr_max
PARAM_VALUE	0	mdsc->snap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	mdsc->snap_rwsem.first_waiter->type	0-1
DATA_SOURCE	0	mdsc	$0
DATA_SOURCE	1	mds	$1
NO_OVERFLOW_SIMPLE	0	mdsc->max_sessions
HALF_LOCKED2	0	&mdsc->mutex

fs/ceph/mds_client.c ceph_mdsc_close_sessions() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->fsc	4096-ptr_max
PARAM_VALUE	0	mdsc->fsc->client	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	0	mdsc->snap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	mdsc->snap_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
DATA_SOURCE	0	mdsc	$0
PARAM_COMPARE	1	mds	< $0->max_sessions
RX_PATH
TASK_NOT_RUNNING
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/mds_client.c ceph_mdsc_force_umount() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
DATA_SOURCE	0	mdsc	$0
PARAM_COMPARE	1	mds	< $0->max_sessions
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/mds_client.c ceph_mdsc_iterate_sessions() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
DATA_SOURCE	0	mdsc	$0
PARAM_COMPARE	1	mds	< $0->max_sessions
RX_PATH
TASK_NOT_RUNNING
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/mds_client.c delayed_work() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->fsc->client->osdc.lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	mdsc->fsc->client->osdc.lock.first_waiter->type	0-1
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mdsmap	4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	0	mdsc->stopping	s32min-2
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
PARAM_COMPARE	1	mds	< $0->max_sessions
HARD_MAX	0	mdsc->stopping	2
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/caps.c ceph_flush_snaps() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
CAPPED_DATA	0	&mdsc->mutex	1
RX_PATH
TASK_NOT_RUNNING
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/caps.c ceph_reserve_caps() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->caps_list_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->fsc	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	mdsc->caps_total_count	1
CAPPED_DATA	1	mds	1
DATA_SOURCE	0	mdsc	$0
PARAM_COMPARE	1	mds	< $0->max_sessions
RX_PATH
TASK_NOT_RUNNING
UNITS	1	mds	unit_array_size
LOCK2	0	&mdsc->mutex
HALF_LOCKED2		&dir->i_rwsem
TYPE_LOCK		(struct ceph_mds_client)->mutex

fs/ceph/debugfs.c caps_show() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
PARAM_COMPARE	1	mds	< $0->max_sessions
RX_PATH
TASK_NOT_RUNNING
UNITS	1	mds	unit_array_size
LOCK2		&s->lock
LOCK2	0	&mdsc->mutex
TYPE_LOCK		(struct ceph_mds_client)->mutex
TYPE_LOCK		(struct seq_file)->lock

fs/ceph/debugfs.c mds_sessions_show() -> __ceph_lookup_mds_session()

Type	Parameter	Key	Value
PARAM_VALUE	0	mdsc	4096-ptr_max
PARAM_VALUE	0	mdsc->max_sessions	1-s32max
PARAM_VALUE	0	mdsc->mutex.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	mdsc->mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	mdsc->mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	mdsc->mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	mdsc->mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	mds	0-s32max
CAPPED_DATA	0	&mdsc->mutex	1
CAPPED_DATA	1	mds	1
PARAM_COMPARE	1	mds	< $0->max_sessions
RX_PATH
TASK_NOT_RUNNING
UNITS	1	mds	unit_array_size
LOCK2		&s->lock
LOCK2	0	&mdsc->mutex
TYPE_LOCK		(struct ceph_mds_client)->mutex
TYPE_LOCK		(struct seq_file)->lock