alloc_hugetlb_folio identifier - Linux source code next-20260811

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  - next-20260811

Defined in 1 files as a prototype:

include/linux/hugetlb.h, line 703 (as a prototype)

Defined in 1 files as a function:

mm/hugetlb.c, line 2939 (as a function)

Referenced in 3 files:

Smatch caller information:

mm/hugetlb.c copy_hugetlb_page_range() -> alloc_hugetlb_folio()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->anon_name	0,4096-ptr_max
PARAM_VALUE	0	vma->anon_vma_chain.next	4096-ptr_max
PARAM_VALUE	0	vma->anon_vma_chain.next->next	4096-ptr_max
PARAM_VALUE	0	vma->anon_vma_chain.prev	4096-ptr_max
PARAM_VALUE	0	vma->anon_vma_chain.prev->next	4096-ptr_max
PARAM_VALUE	0	vma->anon_vma_chain.prev->prev	4096-ptr_max
PARAM_VALUE	0	vma->flags.__vma_flags	4096-ptr_max
PARAM_VALUE	0	vma->numab_state	0
PARAM_VALUE	0	vma->pfnmap_track_ctx	0,4096-ptr_max
PARAM_VALUE	0	vma->vm_end	1073741824-u64max
PARAM_VALUE	0	vma->vm_file	0,4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->context.execute_only_pkey	(-1)
PARAM_VALUE	0	vma->vm_mm->context.ldt	0
PARAM_VALUE	0	vma->vm_mm->context.ldt_usr_sem.magic	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->context.lock.magic	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->context.pkey_allocation_map	1
PARAM_VALUE	0	vma->vm_mm->context.tlb_gen.counter	0
PARAM_VALUE	0	vma->vm_mm->context.untag_mask	u64max
PARAM_VALUE	0	vma->vm_mm->def_flags	0,1073741824
PARAM_VALUE	0	vma->vm_mm->exe_file	0,4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->ioctx_table	0
PARAM_VALUE	0	vma->vm_mm->iommu_mm	0
PARAM_VALUE	0	vma->vm_mm->locked_vm	0
PARAM_VALUE	0	vma->vm_mm->lru_gen.bitmap	0
PARAM_VALUE	0	vma->vm_mm->lru_gen.memcg	0
PARAM_VALUE	0	vma->vm_mm->map_count	0-s32max
PARAM_VALUE	0	vma->vm_mm->mm_cid.lock.magic	3735899821
PARAM_VALUE	0	vma->vm_mm->mm_cid.lock.owner	(-1)
PARAM_VALUE	0	vma->vm_mm->mm_cid.lock.owner_cpu	u32max
PARAM_VALUE	0	vma->vm_mm->mm_cid.max_cids	0
PARAM_VALUE	0	vma->vm_mm->mm_cid.mode	0
PARAM_VALUE	0	vma->vm_mm->mm_cid.mutex.magic	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->mm_cid.pcpu	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->mm_cid.pcpu_thrs	0
PARAM_VALUE	0	vma->vm_mm->mm_cid.update_deferred	0
PARAM_VALUE	0	vma->vm_mm->mm_cid.users	0
PARAM_VALUE	0	vma->vm_mm->mm_count.counter	1
PARAM_VALUE	0	vma->vm_mm->mm_id	0-s32max
PARAM_VALUE	0	vma->vm_mm->mm_mt.ma_flags	771
PARAM_VALUE	0	vma->vm_mm->mm_mt.ma_root	0
PARAM_VALUE	0	vma->vm_mm->mm_users.counter	1
PARAM_VALUE	0	vma->vm_mm->mmap_lock.count.counter	0
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter	0
PARAM_VALUE	0	vma->vm_mm->mmap_lock.magic	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->mmap_lock.osq.tail.counter	0-s32max
PARAM_VALUE	0	vma->vm_mm->mmap_lock.owner.counter	0
PARAM_VALUE	0	vma->vm_mm->notifier_subscriptions	0
PARAM_VALUE	0	vma->vm_mm->owner	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->pgd	18446612682070032384
PARAM_VALUE	0	vma->vm_mm->pinned_vm.counter	0
PARAM_VALUE	0	vma->vm_mm->sc_stat.cpu	(-1)
PARAM_VALUE	0	vma->vm_mm->sc_stat.footprint	0
PARAM_VALUE	0	vma->vm_mm->sc_stat.lock.magic	3735899821
PARAM_VALUE	0	vma->vm_mm->sc_stat.lock.owner	(-1)
PARAM_VALUE	0	vma->vm_mm->sc_stat.lock.owner_cpu	u32max
PARAM_VALUE	0	vma->vm_mm->sc_stat.nr_running_avg	0
PARAM_VALUE	0	vma->vm_mm->sc_stat.pcpu_sched	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->uprobes_state.xol_area	0
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task	0
PARAM_VALUE	0	vma->vm_ops	0,4096-ptr_max
PARAM_VALUE	0	vma->vm_policy	0,4096-ptr_max
PARAM_VALUE	0	vma->vm_refcnt.refs.counter	0-1
PARAM_VALUE	0	vma->vm_userfaultfd_ctx.ctx->map_changing_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_userfaultfd_ctx.ctx->map_changing_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vmlock_dep_map->name	0-255
PARAM_VALUE	0	vma->vmlock_dep_map.cpu	0
PARAM_VALUE	0	vma->vmlock_dep_map.lock_type	0
PARAM_VALUE	1	addr	0-18446744073709551614
PARAM_VALUE	2	cow_from_owner	0
CAPPED_DATA	0	vma->vm_mm->mm_id	1
CAPPED_DATA	1	addr	1
CAPPED_DATA	1	addr	1
DATA_SOURCE	0	vma	$2
TERMINATED	0	vma->vm_mm->mm_lock_seq.dep_map.name	1
PREEMPT_ADD			<- disables preempt
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	vma->vm_file->f_mapping->host->i_bytes
NO_OVERFLOW_SIMPLE	0	vma->vm_start
UNITS	0	vma	unit_byte
UNITS	1	addr	unit_byte
LOCK2		&mm->mmap_lock
LOCK2		&oldmm->mmap_lock
TYPE_LOCK		(struct mm_struct)->mmap_lock

mm/hugetlb.c hugetlb_mfill_atomic_pte() -> alloc_hugetlb_folio()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->flags.__vma_flags	4096-ptr_max
PARAM_VALUE	0	vma->vm_end	1073741824-u64max
PARAM_VALUE	0	vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
PARAM_VALUE	0	vma->vm_ops	4096-ptr_max
PARAM_VALUE	0	vma->vm_ops->pagesize	1-u64max
PARAM_VALUE	0	vma->vm_refcnt.refs.counter	(-1073741824),0-s32max
PARAM_VALUE	0	vma->vm_userfaultfd_ctx.ctx	1-u64max
PARAM_VALUE	2	cow_from_owner	0
CAPPED_DATA	0	vma	1
DATA_SOURCE	0	vma	$1
DATA_SOURCE	1	addr	$2
NOSPEC	1	addr
NOSPEC	1	addr
USER_DATA	0	vma->vm_policy->home_node	0-1023
USER_DATA	1	addr	0-18446744073709551614[c]
NO_OVERFLOW_SIMPLE	1	addr
UNITS	1	addr	unit_byte
LOCK2		&state.ctx->map_changing_lock
HALF_LOCKED2		&ctx->map_changing_lock
TYPE_LOCK		(struct userfaultfd_ctx)->map_changing_lock

mm/hugetlb.c hugetlb_mfill_atomic_pte() -> alloc_hugetlb_folio()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->flags.__vma_flags	4096-ptr_max
PARAM_VALUE	0	vma->vm_end	1073741824-u64max
PARAM_VALUE	0	vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
PARAM_VALUE	0	vma->vm_ops	4096-ptr_max
PARAM_VALUE	0	vma->vm_ops->pagesize	1-u64max
PARAM_VALUE	0	vma->vm_refcnt.refs.counter	(-1073741824),0-s32max
PARAM_VALUE	0	vma->vm_userfaultfd_ctx.ctx	1-u64max
PARAM_VALUE	2	cow_from_owner	0
CAPPED_DATA	0	vma	1
DATA_SOURCE	0	vma	$1
DATA_SOURCE	1	addr	$2
NOSPEC	1	addr
NOSPEC	1	addr
USER_DATA	0	vma->vm_policy->home_node	0-1023
USER_DATA	1	addr	0-18446744073709551614[c]
NO_OVERFLOW_SIMPLE	1	addr
UNITS	1	addr	unit_byte
LOCK2		&state.ctx->map_changing_lock
HALF_LOCKED2		&ctx->map_changing_lock
TYPE_LOCK		(struct userfaultfd_ctx)->map_changing_lock

mm/hugetlb.c hugetlb_no_page() -> alloc_hugetlb_folio()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->vm_file	4096-ptr_max
PARAM_VALUE	2	cow_from_owner	0
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	addr	0-u64max[c]
UNITS	1	addr	unit_byte
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		&pool->lock

mm/hugetlb.c hugetlb_wp() -> alloc_hugetlb_folio()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->i_mmap_rwsem.first_waiter->type	0-1
BIT_INFO	0	vma->vm_flags	0x0,0xffffffffffffff7f
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	vma->vm_policy->flags	0,24,8192-57368[c]
USER_DATA	0	vma->vm_policy->home_node	0-1023
USER_DATA	1	addr	0-u64max[c]
UNITS	1	addr	unit_byte
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		&pool->lock

fs/hugetlbfs/inode.c hugetlbfs_fallocate() -> alloc_hugetlb_folio()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	5422530354261037056
PARAM_VALUE	0	vma->anon_vma	0
PARAM_VALUE	0	vma->shared.rb_subtree_last	0
PARAM_VALUE	0	vma->vm_end	0
PARAM_VALUE	0	vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vma->vm_flags	0
PARAM_VALUE	0	vma->vm_lock_seq	u32max
PARAM_VALUE	0	vma->vm_ops	6756087424609792000
PARAM_VALUE	0	vma->vm_pgoff	0
PARAM_VALUE	0	vma->vm_policy	0
PARAM_VALUE	0	vma->vm_private_data	0
PARAM_VALUE	0	vma->vm_refcnt.refs.counter	0
PARAM_VALUE	0	vma->vm_start	0
PARAM_VALUE	2	cow_from_owner	0
MEM_ZERO	0	vma
RX_PATH
TASK_NOT_RUNNING
LOCK2		&inode->i_rwsem
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct inode)->i_rwsem