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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 1 files:

Smatch caller information:

mm/memory.c do_numa_page() -> can_change_pte_writable()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->vm_flags 1-u64max
PARAM_VALUE 1 addr 0,4096-u64max
DATA_SOURCE 2 pte r pte_modify
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
USER_DATA 1 addr 0,4096-u64max[c]
UNITS 1 addr unit_byte
LOCK2 rcu_read
LOCK2 vmf->ptl
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &pool->lock

mm/memory.c do_uffd_rwp() -> can_change_pte_writable()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->vm_flags 1-u64max
PARAM_VALUE 1 addr 0,4096-u64max
DATA_SOURCE 2 pte r pte_mkyoung
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
USER_DATA 1 addr 0,4096-u64max[c]
UNITS 1 addr unit_byte
LOCK2 rcu_read
LOCK2 vmf->ptl
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &pool->lock

mm/memory.c numa_rebuild_large_mapping() -> can_change_pte_writable()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->vm_flags 1-u64max
BUF_SIZE 0 vma (-1),1-s32max
BUF_SIZE 0 vma (-1),1-s32max
DATA_SOURCE 0 vma $1
DATA_SOURCE 2 pte r pte_modify
RX_PATH
TASK_NOT_RUNNING
USER_DATA 1 addr 4096-u64max
UNITS 1 addr unit_byte
LOCK2 vmf->ptl
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &pool->lock
HALF_LOCKED2 rcu_read

mm/memory.c restore_exclusive_pte() -> can_change_pte_writable()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
BUF_SIZE 0 vma (-1),4,24,64,168-s32max
BUF_SIZE 0 vma (-1),4,24,64,168-s32max
DATA_SOURCE 0 vma $0
DATA_SOURCE 1 addr $3
BIT_INFO 0 vma->vm_flags 0x2,0xffffffffffffffff
NOSPEC 1 addr
NOSPEC 1 addr
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA 1 addr 0,4096-u64max[c]
NO_OVERFLOW_SIMPLE 0 vma->vm_pgoff
UNITS 1 addr unit_byte
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &oldmm->mmap_lock
HALF_LOCKED2 dst_ptl
HALF_LOCKED2 rcu_read
HALF_LOCKED2 src_ptl
HALF_LOCKED2 vmf->ptl