gup_must_unshare identifier - Linux source code next-20260811

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a function:

mm/internal.h, line 1359 (as a function)

Referenced in 1 files:

mm/gup.c

Smatch caller information:

mm/gup.c follow_huge_pmd() -> gup_must_unshare()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_inode->i_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_inode->i_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->host->i_sb->s_export_op->fh_to_dentry	0,8684,447817974243774464,687732489194512384,742201802719268864,868497899885588480,1471448175530500096,2021658383390310400,2445877819203563520,2512819722689847296,2649270699546726400,2761259683714371584,2893332316235677696-s64max
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_file->f_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->context.asid_transition	1
PARAM_VALUE	0	vma->vm_mm->iommu_mm->pasid	0-4294967295
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->delays->blkio_count	0-4294967295
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->sched_task_group->parent	0-s64max
PARAM_VALUE	0	vma->vm_private_data->rw_sema->wait_lock.owner	(-4611686018427387904)-4611686018427387903
PARAM_VALUE	0	vma->vm_private_data->rw_sema.dep_map->name	0-255
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->handoff_set	1
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->list.next	2212933610777083904
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->list.prev	2212933610777083904
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->type	0-1
PARAM_VALUE	1	flags	1-u32max
DATA_SOURCE	0	vma	$0
DATA_SOURCE	1	flags	$3
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	flags	1-u32max
NO_OVERFLOW_SIMPLE	0	vma->vm_file->f_mapping->host->i_size
HALF_LOCKED2		&mm->mmap_lock

mm/gup.c follow_huge_pud() -> gup_must_unshare()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_inode->i_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_inode->i_mapping->invalidate_lock.first_waiter->type	0-1
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_file->f_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->delays->blkio_count	0-4294967295
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->sched_task_group->idle	s32min-s32max
PARAM_VALUE	0	vma->vm_private_data->rw_sema->wait_lock.owner	(-4611686018427387904)-4611686018427387903
PARAM_VALUE	0	vma->vm_private_data->rw_sema.dep_map->name	0-255
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->handoff_set	1
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->list.next	2212933610777083904
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->list.prev	2212933610777083904
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->type	0-1
PARAM_VALUE	1	flags	1-u32max
PARAM_VALUE	2	page	4096-ptr_max
DATA_SOURCE	0	vma	$0
DATA_SOURCE	1	flags	$3
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	flags	1-u32max
NO_OVERFLOW_SIMPLE	0	vma->vm_file->f_mapping->host->i_bytes
HALF_LOCKED2		&mm->mmap_lock

mm/gup.c follow_page_pte() -> gup_must_unshare()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	4096-ptr_max
PARAM_VALUE	0	vma->vm_file->f_inode->i_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_inode->i_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->host->i_sb->s_export_op->fh_to_dentry	0,8684,447817974243774464,687732489194512384,742201802719268864,868497899885588480,1471448175530500096,2021658383390310400,2445877819203563520,2512819722689847296,2649270699546726400,2761259683714371584,2893332316235677696-s64max
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_file->f_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_file->f_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm	4096-ptr_max
PARAM_VALUE	0	vma->vm_mm->iommu_mm->pasid	0-4294967295
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->delays->blkio_count	0-4294967295
PARAM_VALUE	0	vma->vm_mm->vma_writer_wait.task->sched_task_group->parent	0-s64max
PARAM_VALUE	0	vma->vm_private_data->rw_sema->wait_lock.owner	(-4611686018427387904)-4611686018427387903
PARAM_VALUE	0	vma->vm_private_data->rw_sema.dep_map->name	0-255
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->handoff_set	1
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->list.next	2212933610777083904
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->list.prev	2212933610777083904
PARAM_VALUE	0	vma->vm_private_data->rw_sema.first_waiter->type	0-1
PARAM_VALUE	2	page	4096-ptr_max
DATA_SOURCE	0	vma	$0
DATA_SOURCE	1	flags	$3
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	flags	0-u32max
NO_OVERFLOW_SIMPLE	0	vma->vm_file->f_mapping->host->i_size
LOCK2		ptl
HALF_LOCKED2		&mm->mmap_lock

mm/gup.c gup_fast_pmd_leaf() -> gup_must_unshare()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	0
PARAM_VALUE	1	flags	2-2097150
PARAM_VALUE	2	page	1-u64max
DATA_SOURCE	1	flags	$4
BIT_INFO	1	flags	0x0,0x18152b
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	flags	2-2097150
LOCK2		flags

mm/gup.c gup_fast_pte_range() -> gup_must_unshare()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	0
PARAM_VALUE	1	flags	2-2097150
PARAM_VALUE	2	page	4096-ptr_max
DATA_SOURCE	1	flags	$4
BIT_INFO	1	flags	0x0,0x18152b
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	flags	2-2097150
LOCK2		flags
LOCK2		rcu_read

mm/gup.c gup_fast_pud_leaf() -> gup_must_unshare()

Type	Parameter	Key	Value
PARAM_VALUE	0	vma	0
PARAM_VALUE	1	flags	2-2097150
PARAM_VALUE	2	page	1-u64max
DATA_SOURCE	1	flags	$4
BIT_INFO	1	flags	0x0,0x18152b
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	flags	2-2097150
LOCK2		flags