release_fault_lock identifier - Linux source code next-20260811

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  - next-20260811

Defined in 2 files as a function:

Referenced in 3 files:

Smatch caller information:

mm/userfaultfd.c handle_userfault() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	4096-ptr_max
PARAM_VALUE	0	vmf->flags	4-u32max
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->vma	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
BUF_SIZE	0	vmf->cow_page	(-1),64
BUF_SIZE	0	vmf->vma	(-1),1-s32max
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$0
BIT_INFO	0	vmf->flags	0x4,0xfffffff7
NOSPEC	0	vmf->address
NOSPEC	0	vmf->pgoff
NOSPEC	0	vmf->real_address
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0-u64max[c]
USER_DATA	0	vmf->pgoff	0-36028797018963967
USER_DATA	0	vmf->pte	4096-ptr_max[u]
USER_DATA	0	vmf->real_address	0-u64max
USER_DATA	0	vmf->vma->swap_readahead_info.counter	0-s64max[c]
USER_DATA	0	vmf->vma->vm_policy->flags	0,24,8192-57368[c]
USER_DATA	0	vmf->vma->vm_policy->home_node	0-1023
USER_DATA	0	vmf->vma->vm_policy->mode	2-3,5-u16max
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_end
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_start

mm/userfaultfd.c handle_userfault() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	4096-ptr_max
PARAM_VALUE	0	vmf->flags	4-u32max
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->vma	4096-ptr_max
PARAM_VALUE	0	vmf->vma->flags.__vma_flags	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
PARAM_VALUE	0	vmf->vma->vm_userfaultfd_ctx.ctx->fault_pending_wqh.lock.rlock.dep_map->name	0-255
BUF_SIZE	0	vmf->cow_page	(-1),64
BUF_SIZE	0	vmf->vma	(-1),1-s32max
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$0
BIT_INFO	0	vmf->flags	0x4,0xffffffffffffffff
NOSPEC	0	vmf->address
NOSPEC	0	vmf->pgoff
NOSPEC	0	vmf->real_address
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0-u64max[c]
USER_DATA	0	vmf->pgoff	0-36028797018963967
USER_DATA	0	vmf->pte	4096-ptr_max[u]
USER_DATA	0	vmf->real_address	0-u64max
USER_DATA	0	vmf->vma->swap_readahead_info.counter	0-s64max[c]
USER_DATA	0	vmf->vma->vm_policy->flags	0,24,8192-57368[c]
USER_DATA	0	vmf->vma->vm_policy->home_node	0-1023
USER_DATA	0	vmf->vma->vm_policy->mode	2-3,5-u16max
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_end
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_start

mm/shmem.c maybe_unlock_mmap_for_io() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	4096-ptr_max
PARAM_VALUE	0	vmf->flags	4-u32max
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->pgoff	0-18446744073709551614
PARAM_VALUE	0	vmf->vma	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_inode->i_mapping	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_inode->i_private	1-u64max
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->kcov->mode	0-4294967295
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->kcov->remote	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->kcov->remote_size	0-4294967295
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->kcov_remote->mode	0-4294967295
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->kcov_remote->remote	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->kcov_remote->remote_size	0-4294967295
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->ptracer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->sched_task_group->idle	s32min-s32max
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->thread_pid->attr->exit_code	s32min-s32max
BUF_SIZE	0	vmf->cow_page	(-1),64
CAPPED_DATA	0	vmf->pgoff	1
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$0
NOSPEC	0	vmf->address
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0-u64max[c]
USER_DATA	0	vmf->pgoff	0-s32max[c]
USER_DATA	0	vmf->pte	4096-ptr_max[u]
USER_DATA	0	vmf->real_address	0-u64max[c]
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_end
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_start
LOCK2		&inode->i_lock
TYPE_LOCK		(struct inode)->i_lock

mm/filemap.c __folio_lock_or_retry() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	2508977417524461568,2900308121553498112
PARAM_VALUE	0	vmf->address	0,4096-u64max
PARAM_VALUE	0	vmf->cow_page	0
PARAM_VALUE	0	vmf->flags	4,2048-6998
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->page	0,4096-ptr_max
PARAM_VALUE	0	vmf->pmd	4096-ptr_max
PARAM_VALUE	0	vmf->prealloc_pte	0
PARAM_VALUE	0	vmf->pte	0
PARAM_VALUE	0	vmf->pud	0,4096-ptr_max
PARAM_VALUE	0	vmf->vma	4096-ptr_max
BUF_SIZE	0	vmf->vma	(-1),4,24,64,168-s32max
CAPPED_DATA	0	vmf->address	1
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$1
NOSPEC	0	vmf->address
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0,4096-u64max[c]
USER_DATA	0	vmf->pgoff	0-4503599627370495[c]
USER_DATA	0	vmf->real_address	0-u64max[c]
USER_DATA	0	vmf->vma->swap_readahead_info.counter	0-s64max[c]
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
HALF_LOCKED2		&mm->mmap_lock

mm/filemap.c __folio_lock_or_retry() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	2508977417524461568,2900308121553498112
PARAM_VALUE	0	vmf->address	0,4096-u64max
PARAM_VALUE	0	vmf->cow_page	0
PARAM_VALUE	0	vmf->flags	2048-6998
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->page	0,4096-ptr_max
PARAM_VALUE	0	vmf->pmd	4096-ptr_max
PARAM_VALUE	0	vmf->prealloc_pte	0
PARAM_VALUE	0	vmf->pte	0
PARAM_VALUE	0	vmf->pud	0,4096-ptr_max
PARAM_VALUE	0	vmf->vma	4096-ptr_max
BUF_SIZE	0	vmf->vma	(-1),4,24,64,168-s32max
CAPPED_DATA	0	vmf->address	1
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$1
NOSPEC	0	vmf->address
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0,4096-u64max[c]
USER_DATA	0	vmf->pgoff	0-4503599627370495[c]
USER_DATA	0	vmf->real_address	0-u64max[c]
USER_DATA	0	vmf->vma->swap_readahead_info.counter	0-s64max[c]
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
HALF_LOCKED2		&mm->mmap_lock

mm/filemap.c lock_folio_maybe_drop_mmap() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	4096-ptr_max
PARAM_VALUE	0	vmf->flags	16-u32max
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->pgoff	0-18446744073709551614
PARAM_VALUE	0	vmf->vma	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_op->readlink	0,1728600404483375104,2832489546165891072,2874824064778891264,3069732422725099520,4516337085607264256
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648,2712
PARAM_VALUE	0	vmf->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	vmf->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	vmf->vma->vm_file->f_mapping->host->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488,2483979068402987008-s64max
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
BUF_SIZE	0	vmf->cow_page	(-1),64
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$0
BIT_INFO	0	vmf->flags	0x10,0xfffffff7
NOSPEC	0	vmf->address
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0-u64max[c]
USER_DATA	0	vmf->pgoff	0-4503599627370495
USER_DATA	0	vmf->pte	4096-ptr_max[u]
USER_DATA	0	vmf->real_address	0-u64max[c]
USER_DATA	0	vmf->vma->vm_file->f_ra.order	1-31[c]
USER_DATA	0	vmf->vma->vm_file->f_ra.size	0-u32max
USER_DATA	0	vmf->vma->vm_file->f_ra.start	0-4503599627370495[c]
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_end
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_start
HALF_LOCKED2		&mapping->invalidate_lock

mm/filemap.c maybe_unlock_mmap_for_io() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	4096-ptr_max
PARAM_VALUE	0	vmf->flags	4-u32max
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->pgoff	0-18446744073709551614
PARAM_VALUE	0	vmf->vma	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_mapping->i_mmap_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_op->readlink	0,1728600404483375104,2832489546165891072,2874824064778891264,3069732422725099520,4516337085607264256
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648,2712
PARAM_VALUE	0	vmf->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	vmf->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	vmf->vma->vm_file->f_mapping->host->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488,2483979068402987008-s64max
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->host->i_sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->invalidate_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_file->f_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->vma_writer_wait.task->sched_class->uclamp_enabled	0-1
BUF_SIZE	0	vmf->cow_page	(-1),64
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$0
NOSPEC	0	vmf->address
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0-u64max[c]
USER_DATA	0	vmf->pgoff	0-4503599627370495
USER_DATA	0	vmf->pte	4096-ptr_max[u]
USER_DATA	0	vmf->real_address	0-u64max[c]
USER_DATA	0	vmf->vma->vm_file->f_ra.order	1-31[c]
USER_DATA	0	vmf->vma->vm_file->f_ra.size	0-u32max
USER_DATA	0	vmf->vma->vm_file->f_ra.start	0-4503599627370495[c]
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_end
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_start

mm/memory.c maybe_unlock_mmap_for_io() -> release_fault_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	vmf	2508977417524461568,2900308121553498112
PARAM_VALUE	0	vmf->address	0,4096-u64max
PARAM_VALUE	0	vmf->cow_page	0
PARAM_VALUE	0	vmf->flags	4-6998
PARAM_VALUE	0	vmf->gfp_mask	0,64-u32max
PARAM_VALUE	0	vmf->page	4096-ptr_max
PARAM_VALUE	0	vmf->pmd	4096-ptr_max
PARAM_VALUE	0	vmf->pte	0,4096-ptr_max
PARAM_VALUE	0	vmf->ptl	4096-ptr_max
PARAM_VALUE	0	vmf->ptl->rlock.dep_map->name	0-255
PARAM_VALUE	0	vmf->pud	0,4096-ptr_max
PARAM_VALUE	0	vmf->vma	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file	4096-ptr_max
PARAM_VALUE	0	vmf->vma->vm_file->f_inode->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648
PARAM_VALUE	0	vmf->vma->vm_file->f_inode->i_sb->s_export_op->fh_to_parent	0,148606482432692224,436469935444291584,467281172929331200,529780027764285440,1092893949038768128,1556959531105513472,1608953577475584000,1649536479961075712,2404761408063094784,2970908329832960000,3511613614414655488-s64max
PARAM_VALUE	0	vmf->vma->vm_file->f_inode->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488,2483979068402987008-s64max
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->handoff_set	0-1
PARAM_VALUE	0	vmf->vma->vm_mm->mmap_lock.first_waiter->type	0-1
PARAM_VALUE	0	vmf->vma->vm_ops	0,4096-ptr_max
BUF_SIZE	0	vmf->vma	(-1),4,24,64,168-s32max
CAPPED_DATA	0	vmf->address	1
CAPPED_DATA	0	vmf->vma	1
DATA_SOURCE	0	vmf	$0
NOSPEC	0	vmf->address
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	0	vmf->address	0,4096-u64max[c]
USER_DATA	0	vmf->pgoff	0-4503599627370495[c]
USER_DATA	0	vmf->real_address	0-u64max[c]
NO_OVERFLOW_SIMPLE	0	vmf->vma->vm_pgoff
HALF_LOCKED2		&mm->mmap_lock