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Defined in 2 files as a function:

Referenced in 2 files:

Smatch caller information:

mm/pgtable-generic.c pte_offset_map_lock() -> pte_lockptr()

Type Parameter Key Value
PARAM_VALUE 1 pmd 6907873346333675520
BUF_SIZE 0 mm s32min-s32max
DATA_SOURCE 0 mm $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
UNITS 0 mm unit_byte
LOCK2 rcu_read
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &oldmm->mmap_lock
HALF_LOCKED2 &state.ctx->map_changing_lock
HALF_LOCKED2 &vma->anon_vma->root->rwsem
HALF_LOCKED2 global &ksm_thread_mutex
HALF_LOCKED2 0 &mm->context.ldt_usr_sem
HALF_LOCKED2 0 &mm->mmap_lock

mm/pgtable-generic.c pte_offset_map_ro_nolock() -> pte_lockptr()

Type Parameter Key Value
PARAM_VALUE 1 pmd 4273992439356854272
DATA_SOURCE 0 mm $0
RX_PATH
TASK_NOT_RUNNING
UNITS 0 mm unit_byte
LOCK2 rcu_read
HALF_LOCKED2 0 &mm->mmap_lock

mm/pgtable-generic.c pte_offset_map_rw_nolock() -> pte_lockptr()

Type Parameter Key Value
PARAM_VALUE 1 pmd 4096-ptr_max
BUF_SIZE 0 mm s32min-(-1),1-s32max
BUF_SIZE 0 mm s32min-(-1),1-s32max
DATA_SOURCE 0 mm $0
DATA_SOURCE 1 pmd $3
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
UNITS 0 mm unit_byte
LOCK2 rcu_read
HALF_LOCKED2 &ctx->map_changing_lock
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &oldmm->mmap_lock
HALF_LOCKED2 dst_ptl
HALF_LOCKED2 old_ptl
HALF_LOCKED2 0 &mm->mmap_lock

mm/khugepaged.c retract_page_tables() -> pte_lockptr()

Type Parameter Key Value
PARAM_VALUE 0 mm 4096-ptr_max
PARAM_VALUE 1 pmd 4096-ptr_max
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
UNITS 0 mm unit_byte
LOCK2 &mapping->i_mmap_rwsem
HALF_LOCKED2 &mm->mmap_lock
TYPE_LOCK (struct address_space)->i_mmap_rwsem