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Defined in 1 files as a function:

Referenced in 2 files:

Smatch caller information:

mm/userfaultfd.c userfaultfd_register_range() -> uffd_disable_huge_pmd_share()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->flags.__vma_flags 4096-ptr_max
CAPPED_DATA 0 vma 1
DATA_SOURCE 0 vma r vma_modify_flags_uffd
NOSPEC 0 vma->vm_start
USER_DATA 0 vma->vm_pgoff 0-4503599627370495[c]
USER_DATA 0 vma->vm_start 1-u64max[c]
NO_OVERFLOW_SIMPLE 0 vma->vm_start
LOCK2 &mm->mmap_lock
TYPE_LOCK (struct mm_struct)->mmap_lock

mm/hugetlb.c want_pmd_share() -> uffd_disable_huge_pmd_share()

Type Parameter Key Value
PARAM_VALUE 0 vma 1-u64max
BUF_SIZE 0 vma (-1)-s32max
BUF_SIZE 0 vma (-1)-s32max
BUF_SIZE 0 vma->vm_mm (-1)-s32max
CAPPED_DATA 0 vma 1
DATA_SOURCE 0 vma $0
NOSPEC 0 vma->vm_start
RX_PATH
TASK_NOT_RUNNING
USER_DATA 0 vma->vm_end 4096-u64max[c]
USER_DATA 0 vma->vm_start 0-u64max
NO_OVERFLOW_SIMPLE 0 vma->vm_file->f_mapping->host->i_bytes
NO_OVERFLOW_SIMPLE 0 vma->vm_file->f_mapping->host->i_size
NO_OVERFLOW_SIMPLE 0 vma->vm_pgoff
UNITS 0 vma unit_byte
HALF_LOCKED2 &mapping->i_mmap_rwsem
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &oldmm->mmap_lock
HALF_LOCKED2 &state.ctx->map_changing_lock
HALF_LOCKED2 0 &vma->vm_file->f_mapping->i_mmap_rwsem