Defined in 3 files as a macro:

Defined in 10 files as a function:

Referenced in 13 files:

Smatch caller information:

arch/x86/mm/init_64.c free_pud_table() -> p4d_clear()

Type Parameter Key Value
PARAM_VALUE 0 p4dp 4096-ptr_max
DATA_SOURCE 0 p4dp $1
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2 global &init_mm.page_table_lock
TYPE_LOCK (struct mm_struct)->page_table_lock

mm/kasan/init.c kasan_free_pud() -> p4d_clear()

Type Parameter Key Value
PARAM_VALUE 0 p4dp 4096-ptr_max
DATA_SOURCE 0 p4dp $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &dev->mutex

mm/kasan/init.c kasan_remove_p4d_table() -> p4d_clear()

Type Parameter Key Value
PARAM_VALUE 0 p4dp 4096-ptr_max
DATA_SOURCE 0 p4dp $0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &dev->mutex

arch/x86/mm/kasan_init_64.c clear_pgds() -> p4d_clear()

Type Parameter Key Value
NOCHECK_CALL
LOCK2 irq

arch/x86/mm/kasan_init_64.c clear_pgds() -> p4d_clear()

Type Parameter Key Value
NOCHECK_CALL
LOCK2 irq

mm/memory.c free_pud_range() -> p4d_clear()

Type Parameter Key Value
PARAM_VALUE 0 p4dp 4096-ptr_max
DATA_SOURCE 0 p4dp $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &tsk->signal->exec_update_lock

mm/pgtable-generic.c p4d_clear_bad() -> p4d_clear()

Type Parameter Key Value
PARAM_VALUE 0 p4dp 4096-ptr_max
DATA_SOURCE 0 p4dp $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &mm->mmap_lock

mm/debug_vm_pgtable.c destroy_args() -> p4d_clear()

Type Parameter Key Value
PREEMPT_ADD
NOCHECK_CALL

mm/debug_vm_pgtable.c p4d_clear_tests() -> p4d_clear()

Type Parameter Key Value
PARAM_VALUE 0 p4dp 4096-ptr_max
PREEMPT_ADD
NOCHECK_CALL
LOCK2 &args.mm->page_table_lock
TYPE_LOCK (struct mm_struct)->page_table_lock

mm/debug_vm_pgtable.c p4d_populate_tests() -> p4d_clear()

Type Parameter Key Value
PREEMPT_ADD
NOCHECK_CALL
LOCK2 &args.mm->page_table_lock
TYPE_LOCK (struct mm_struct)->page_table_lock

mm/debug_vm_pgtable.c pgd_populate_tests() -> p4d_clear()

Type Parameter Key Value
PREEMPT_ADD
NOCHECK_CALL
LOCK2 &args.mm->page_table_lock
TYPE_LOCK (struct mm_struct)->page_table_lock