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Defined in 1 files as a prototype:

Defined in 2 files as a function:

Referenced in 2 files:

Smatch caller information:

mm/huge_memory.c __split_huge_pmd() -> split_huge_pmd_locked()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->vm_file->f_inode->i_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_inode->i_mapping->i_mmap_rwsem.first_waiter->handoff_set 0-1
PARAM_VALUE 0 vma->vm_file->f_inode->i_mapping->i_mmap_rwsem.first_waiter->type 0-1
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_inode->i_rwsem.first_waiter->handoff_set 0-1
PARAM_VALUE 0 vma->vm_file->f_inode->i_rwsem.first_waiter->type 0-1
PARAM_VALUE 0 vma->vm_file->f_inode->i_sb->s_cop->empty_dir 0,86,661756434209751040,4392966320616476672,5234023279986843648,8614756098313990144
PARAM_VALUE 0 vma->vm_file->f_inode->i_sb->s_cop->get_context 0,706,17350455714160640,4513809449498124288,5149251875611672576,7067778626864828416
PARAM_VALUE 0 vma->vm_file->f_inode->i_sb->s_cop->inode_info_offs 1632,1720,1808,2632,2648,2712
PARAM_VALUE 0 vma->vm_file->f_inode->i_sb->s_cop->set_context 0,67,317457138841939968,3250154607523569664,5979066299606671360,6756104566897242112
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_mapping->i_mmap_rwsem.first_waiter->type 0-1
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_sb->s_cop->empty_dir 0,661756434209751040,4392966320616476672,5234023279986843648,8614756098313990144
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_sb->s_cop->get_context 0,17350455714160640,4513809449498124288,5149251875611672576,7067778626864828416
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_sb->s_cop->inode_info_offs 1632,1720,1808,2632,2648
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_sb->s_cop->set_context 0,317457138841939968,3250154607523569664,5979066299606671360,6756104566897242112
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_sb->s_export_op->encode_fh 0,2,1398972869330624512,1616549510479982592,2037984473558433792,2776440803454029824,3228746867770966016,3502492669594062848,3526768263295340544,3559173554394271744,5000850239487131648,5583386343686406144,5817357685191483392-s64max
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->host->i_sb->s_export_op->fh_to_parent 0,4672,148606482432692224,436469935444291584,457356038048772096,467281172929331200,529780027764285440,1092893949038768128,1556959531105513472,1608953577475584000,1649536479961075712,2404761408063094784,2970908329832960000-s64max
PARAM_VALUE 0 vma->vm_file->f_mapping->host->i_sb->s_export_op->get_parent 0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1293513186369728512,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488-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->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->sched_class->uclamp_enabled 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 1 address 0,2097152-u64max
PARAM_VALUE 2 pmd 4096-ptr_max
BUF_SIZE 0 vma (-1),1-s32max
BUF_SIZE 0 vma (-1),1-s32max
BUF_SIZE 0 vma->vm_mm (-1),1-s32max
BUF_SIZE 0 vma->vm_ops (-1),144
BUF_SIZE 0 vma->vm_private_data (-1),1-s32max
CAPPED_DATA 0 vma 1
CAPPED_DATA 1 address 1
CAPPED_DATA 1 address 1
DATA_SOURCE 0 vma $0
DATA_SOURCE 2 pmd $1
DATA_SOURCE 3 freeze $3
NOSPEC 0 vma->vm_end
NOSPEC 0 vma->vm_pgoff
NOSPEC 0 vma->vm_start
NOSPEC 1 address
NOSPEC 1 address
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 0 vma->pfnmap_track_ctx->pfn 0-9007201402224637[c]
USER_DATA 0 vma->pfnmap_track_ctx->size 0,4096-u64max[c]
USER_DATA 0 vma->vm_end 0-u64max
USER_DATA 0 vma->vm_pgoff 0-9007201402224637[c]
USER_DATA 0 vma->vm_start 0-u64max
USER_DATA 1 address 0,2097152-u64max[c]
NO_OVERFLOW_SIMPLE 0 vma->vm_file->f_mapping->host->i_size
NO_OVERFLOW_SIMPLE 0 vma->vm_policy->mode
UNITS 0 vma unit_byte
UNITS 1 address unit_byte
HALF_LOCKED2 &ctx->map_changing_lock
HALF_LOCKED2 &mm->mmap_lock
HALF_LOCKED2 &oldmm->mmap_lock

mm/rmap.c try_to_migrate_one() -> split_huge_pmd_locked()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->vm_mm 4096-ptr_max
PARAM_VALUE 2 pmd 4096-ptr_max
PARAM_VALUE 3 freeze 1
DATA_SOURCE 0 vma $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 vma->vm_start
HALF_LOCKED2 &anon_vma->root->rwsem
HALF_LOCKED2 &folio->private->lock
HALF_LOCKED2 &resv_map->rw_sema
HALF_LOCKED2 0 &vma->vm_private_data->rw_sema

mm/rmap.c try_to_unmap_one() -> split_huge_pmd_locked()

Type Parameter Key Value
PARAM_VALUE 0 vma 4096-ptr_max
PARAM_VALUE 0 vma->vm_mm 4096-ptr_max
PARAM_VALUE 2 pmd 4096-ptr_max
PARAM_VALUE 3 freeze 0
DATA_SOURCE 0 vma $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 vma->vm_start
HALF_LOCKED2 &anon_vma->root->rwsem
HALF_LOCKED2 &folio->private->lock