map_dirent identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

fs/hpfs/hpfs_fn.h, line 255 (as a prototype)

Defined in 1 files as a function:

fs/hpfs/dnode.c, line 909 (as a function)

Referenced in 4 files:

Smatch caller information:

fs/hpfs/dir.c hpfs_lookup() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_op	4096-ptr_max
PARAM_VALUE	0	inode->i_op->atomic_open	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->create	0,4096-ptr_max
PARAM_VALUE	0	inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	3	len	0-s32max
PARAM_VALUE	4	dd	0
PARAM_VALUE	5	qbh	7777795222642487296
BUF_SIZE	2	name	s32min-(-2),1-s32max
BUF_SIZE	2	name	s32min-(-2),1-s32max
DATA_SOURCE	0	inode	$0
BIT_INFO	0	inode->i_flags	0x0,0xffffffef
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	inode->i_mode	0-u16max
USER_DATA	0	inode->i_size	(-9223372036854775807)-(-4),0-s64max
NO_OVERFLOW_SIMPLE	0	inode->i_blkbits
UNITS	1	dno	unit_byte
UNITS	2	name	unit_byte
UNITS	3	len	unit_byte
LOCK2		&sbi->hpfs_mutex
HALF_LOCKED2	0	&inode->i_rwsem

fs/hpfs/namei.c hpfs_rename() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_flctx->flc_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_op	4096-ptr_max
PARAM_VALUE	0	inode->i_op->rename	4096-ptr_max
PARAM_VALUE	4	dd	3453727711124025344
PARAM_VALUE	5	qbh	1287390439487766528
BUF_SIZE	2	name	s32min-(-2),1-s32max
BUF_SIZE	2	name	s32min-(-2),1-s32max
CAPPED_DATA	0	inode	1
DATA_SOURCE	0	inode	$1
RX_PATH
TASK_NOT_RUNNING
UNITS	1	dno	unit_byte
UNITS	2	name	unit_byte
UNITS	3	len	unit_byte
LOCK2		&sbi->hpfs_mutex
HALF_LOCKED2		&source->i_rwsem
HALF_LOCKED2		&target->i_rwsem

fs/hpfs/namei.c hpfs_rename() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	2	name	4096-ptr_max
PARAM_VALUE	3	len	0-s32max
PARAM_VALUE	4	dd	0
PARAM_VALUE	5	qbh	8091605300689240064
BUF_SIZE	2	name	s32min-(-2),1-s32max
BUF_SIZE	2	name	s32min-(-2),1-s32max
CAPPED_DATA	0	inode	1
DATA_SOURCE	0	inode	$3
RX_PATH
TASK_NOT_RUNNING
UNITS	1	dno	unit_byte
UNITS	2	name	unit_byte
UNITS	3	len	unit_byte
LOCK2		&sbi->hpfs_mutex
HALF_LOCKED2		&source->i_rwsem
HALF_LOCKED2		&target->i_rwsem

fs/hpfs/namei.c hpfs_rename() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_flctx->flc_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_op	4096-ptr_max
PARAM_VALUE	0	inode->i_op->rename	4096-ptr_max
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	0	inode->i_sb->s_bdev->bd_mapping->i_private_lock.rlock.dep_map->name	0-255
PARAM_VALUE	4	dd	3453727711124025344
PARAM_VALUE	5	qbh	1287390439487766528
BUF_SIZE	2	name	s32min-(-2),1-s32max
BUF_SIZE	2	name	s32min-(-2),1-s32max
CAPPED_DATA	0	inode	1
CAPPED_DATA	0	inode->i_sb->s_fs_info->n_hotfixes	1
CAPPED_DATA	3	len	1
DATA_SOURCE	0	inode	$1
RX_PATH
TASK_NOT_RUNNING
UNITS	1	dno	unit_byte
UNITS	2	name	unit_byte
UNITS	3	len	unit_byte
LOCK2		&sbi->hpfs_mutex
HALF_LOCKED2		&source->i_rwsem
HALF_LOCKED2		&target->i_rwsem

fs/hpfs/namei.c hpfs_rmdir() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_flctx->flc_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_op	4096-ptr_max
PARAM_VALUE	0	inode->i_op->rmdir	4096-ptr_max
PARAM_VALUE	0	inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	0	inode->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648
PARAM_VALUE	4	dd	2453316920485838848
PARAM_VALUE	5	qbh	5998597991468331008
BUF_SIZE	2	name	s32min-(-2),1-s32max
BUF_SIZE	2	name	s32min-(-2),1-s32max
CAPPED_DATA	0	inode	1
DATA_SOURCE	0	inode	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	1	dno	unit_byte
UNITS	2	name	unit_byte
UNITS	3	len	unit_byte
LOCK2		&dentry->d_inode->i_rwsem
LOCK2		&sbi->hpfs_mutex
HALF_LOCKED2		&dentry->d_lockref.lock
HALF_LOCKED2		&dentry->d_sb->s_vfs_rename_mutex
HALF_LOCKED2		&dir->d_inode->i_rwsem
HALF_LOCKED2	0	&inode->i_rwsem
TYPE_LOCK		(struct inode)->i_rwsem

fs/hpfs/namei.c hpfs_unlink() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_flctx->flc_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_op	4096-ptr_max
PARAM_VALUE	0	inode->i_op->unlink	4096-ptr_max
PARAM_VALUE	0	inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	0	inode->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648
PARAM_VALUE	4	dd	5125596268434030592
PARAM_VALUE	5	qbh	4527361282712035328
BUF_SIZE	2	name	s32min-(-2),1-s32max
BUF_SIZE	2	name	s32min-(-2),1-s32max
CAPPED_DATA	0	inode	1
DATA_SOURCE	0	inode	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	1	dno	unit_byte
UNITS	2	name	unit_byte
UNITS	3	len	unit_byte
LOCK2		&sbi->hpfs_mutex
LOCK2		&target->i_rwsem
HALF_LOCKED2		&dentry->d_lockref.lock
HALF_LOCKED2		&dentry->d_sb->s_vfs_rename_mutex
HALF_LOCKED2		&dir->d_inode->i_rwsem
HALF_LOCKED2	0	&inode->i_rwsem
TYPE_LOCK		(struct inode)->i_rwsem

fs/hpfs/super.c hpfs_fill_super() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_blocks	0-s32max,18446744071562067968-u64max
PARAM_VALUE	0	inode->i_data.a_ops->bmap	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->direct_IO	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->dirty_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->error_remove_folio	0,373303432983703552,3650281484867371008,6933238642996355072,7934844886813757440
PARAM_VALUE	0	inode->i_data.a_ops->free_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->invalidate_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->is_dirty_writeback	0,7518438349615988736,8867638692533350400
PARAM_VALUE	0	inode->i_data.a_ops->is_partially_uptodate	0,1933474595957665792,7182876493439184896
PARAM_VALUE	0	inode->i_data.a_ops->launder_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->migrate_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->read_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->readahead	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->release_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->swap_activate	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->swap_deactivate	0,1546359495696728064,3888069641387622400,7359158453655175168,8604917376913055744
PARAM_VALUE	0	inode->i_data.a_ops->swap_rw	0,4986685196838862848,8487923053812363264
PARAM_VALUE	0	inode->i_data.a_ops->write_begin	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->write_end	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->writepages	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.host->i_sb->s_export_op->encode_fh	0,2,1398972869330624512,1616549510479982592,2037984473558433792
PARAM_VALUE	0	inode->i_data.host->i_sb->s_export_op->fh_to_dentry	0,8684,447817974243774464,687732489194512384,742201802719268864
PARAM_VALUE	0	inode->i_data.host->i_sb->s_export_op->fh_to_parent	0,5297,148606482432692224,436469935444291584,467281172929331200
PARAM_VALUE	0	inode->i_data.host->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896
PARAM_VALUE	0	inode->i_dentry.first	4096-ptr_max
PARAM_VALUE	0	inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_mapping->i_mmap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	inode->i_mapping->i_mmap_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	inode->i_op->atomic_open	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->create	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->fiemap	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->fileattr_get	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->fileattr_set	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_acl	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_inode_acl	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_link	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_offset_ctx	0,2606890545167454208
PARAM_VALUE	0	inode->i_op->getattr	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->link	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->listxattr	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->lookup	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->mkdir	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->mknod	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->permission	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->readlink	0,1728600404483375104,2832489546165891072,2874824064778891264,3069732422725099520,4516337085607264256
PARAM_VALUE	0	inode->i_op->rename	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->rmdir	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->set_acl	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->setattr	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->symlink	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->sync_lazytime	0,6951464784224747520
PARAM_VALUE	0	inode->i_op->tmpfile	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->unlink	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->update_time	0,4096-ptr_max
PARAM_VALUE	0	inode->i_rwsem.count.counter	0
PARAM_VALUE	0	inode->i_rwsem.dep_map->name	0-255
PARAM_VALUE	0	inode->i_rwsem.first_waiter	0
PARAM_VALUE	0	inode->i_rwsem.magic	4096-ptr_max
PARAM_VALUE	0	inode->i_rwsem.osq.tail.counter	0
PARAM_VALUE	0	inode->i_rwsem.owner.counter	0
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	0	inode->i_sb->__s_d_op	0,4096-ptr_max
PARAM_VALUE	0	inode->i_sb->s_bdev->bd_mapping->i_private_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_sb->s_export_op->encode_fh	0,2,1398972869330624512,1616549510479982592,2037984473558433792
PARAM_VALUE	0	inode->i_size	s32min-4294967295
PARAM_VALUE	0	inode->i_wb->dwork->timer->entry.pprev	4096-ptr_max
PARAM_VALUE	0	inode->i_wb->work_lock.rlock.dep_map->name	0-255
PARAM_VALUE	1	dno	1-u32max
PARAM_VALUE	2	name	817033570115190784
PARAM_VALUE	3	len	2
PARAM_VALUE	4	dd	0
PARAM_VALUE	5	qbh	1772818897161506816
BUF_SIZE	0	inode->i_sb	(-1),2880
BUF_SIZE	2	name	3
CAPPED_DATA	0	inode	1
CAPPED_DATA	0	inode->i_ino	1
DATA_SOURCE	0	inode	r iget_locked
DATA_SOURCE	1	dno	r hpfs_fnode_dno
STR_LEN	0	inode	2
STR_LEN	0	inode->i_sb	(-1),8
NOSPEC	0	inode->i_ino
TERMINATED	2	name	1
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	inode->i_ino	0-u32max[c]
NO_OVERFLOW_SIMPLE	0	inode->i_blkbits
NO_OVERFLOW_SIMPLE	0	inode->i_bytes
NO_OVERFLOW_SIMPLE	0	inode->i_ino
NO_OVERFLOW_SIMPLE	0	inode->i_sb->s_blocksize
NO_OVERFLOW_SIMPLE	0	inode->i_sb->s_blocksize_bits
LOCK2		&sbi->hpfs_mutex
HALF_LOCKED2		&fc->uapi_mutex

fs/hpfs/inode.c hpfs_write_inode_nolock() -> map_dirent()

Type	Parameter	Key	Value
PARAM_VALUE	0	inode	4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->bmap	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->direct_IO	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->dirty_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->error_remove_folio	0,373303432983703552,3650281484867371008,6933238642996355072,7934844886813757440
PARAM_VALUE	0	inode->i_data.a_ops->free_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->invalidate_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->is_dirty_writeback	0,7518438349615988736,8867638692533350400
PARAM_VALUE	0	inode->i_data.a_ops->is_partially_uptodate	0,1933474595957665792,7182876493439184896
PARAM_VALUE	0	inode->i_data.a_ops->launder_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->migrate_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->read_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->readahead	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->release_folio	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->swap_activate	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->swap_deactivate	0,1546359495696728064,3888069641387622400,7359158453655175168,8604917376913055744
PARAM_VALUE	0	inode->i_data.a_ops->swap_rw	0,4986685196838862848,8487923053812363264
PARAM_VALUE	0	inode->i_data.a_ops->write_begin	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->write_end	0,4096-ptr_max
PARAM_VALUE	0	inode->i_data.a_ops->writepages	0,4096-ptr_max
PARAM_VALUE	0	inode->i_mapping->host->i_sb->s_cop->empty_dir	0,86,661756434209751040,4392966320616476672,5234023279986843648,8614756098313990144
PARAM_VALUE	0	inode->i_mapping->host->i_sb->s_cop->get_context	0,706,17350455714160640,4513809449498124288,5149251875611672576,7067778626864828416
PARAM_VALUE	0	inode->i_mapping->host->i_sb->s_cop->set_context	0,67,317457138841939968,3250154607523569664,5979066299606671360,6756104566897242112
PARAM_VALUE	0	inode->i_mapping->i_mmap_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	inode->i_mapping->i_mmap_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	inode->i_op->atomic_open	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->create	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->fiemap	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->fileattr_get	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->fileattr_set	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_acl	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_inode_acl	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_link	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->get_offset_ctx	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->getattr	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->link	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->listxattr	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->lookup	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->mkdir	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->mknod	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->permission	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->readlink	0,1728600404483375104,2832489546165891072,2874824064778891264,3069732422725099520,4516337085607264256
PARAM_VALUE	0	inode->i_op->rename	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->rmdir	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->set_acl	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->setattr	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->symlink	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->sync_lazytime	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->tmpfile	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->unlink	0,4096-ptr_max
PARAM_VALUE	0	inode->i_op->update_time	0,4096-ptr_max
PARAM_VALUE	0	inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	inode->i_sb	4096-ptr_max
PARAM_VALUE	0	inode->i_sb->s_bdev->bd_mapping->i_private_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	inode->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648
PARAM_VALUE	0	inode->i_sb->s_export_op->encode_fh	0,2,1398972869330624512,1616549510479982592,2037984473558433792,2776440803454029824,3228746867770966016,3502492669594062848,3526768263295340544,3559173554394271744,5000850239487131648,5583386343686406144,5817357685191483392-s64max
PARAM_VALUE	0	inode->i_sb->s_export_op->fh_to_parent	0,5297,148606482432692224,436469935444291584,467281172929331200,529780027764285440,1092893949038768128,1556959531105513472,1608953577475584000,1649536479961075712,2404761408063094784,2970908329832960000,3511613614414655488-s64max
PARAM_VALUE	0	inode->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896
PARAM_VALUE	0	inode->i_sb->s_fs_info	4096-ptr_max
PARAM_VALUE	2	name	817033570115190784
PARAM_VALUE	3	len	2
PARAM_VALUE	4	dd	0
PARAM_VALUE	5	qbh	3552708175923826688
BUF_SIZE	0	inode->i_data.a_ops	(-1),152
BUF_SIZE	0	inode->i_fop	(-1),272
BUF_SIZE	0	inode->i_op	(-1),256
BUF_SIZE	2	name	3
CAPPED_DATA	0	inode	1
CAPPED_DATA	0	inode->i_sb	1
DATA_SOURCE	0	inode	$0
STR_LEN	0	inode	2
NOSPEC	0	inode->i_size
TERMINATED	2	name	1
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	inode->__i_nlink	1-u32max
USER_DATA	0	inode->i_blocks	1-18014398509481984[c]
USER_DATA	0	inode->i_mode	0-u16max
USER_DATA	0	inode->i_sb->s_flags	0-u64max[c]
USER_DATA	0	inode->i_size	(-9223372036854775807)-(-4),0-s64max
NO_OVERFLOW_SIMPLE	0	inode->i_blkbits
NO_OVERFLOW_SIMPLE	0	inode->i_ino
NO_OVERFLOW_SIMPLE	0	inode->i_linklen
NO_OVERFLOW_SIMPLE	0	inode->i_sb->s_blocksize
NO_OVERFLOW_SIMPLE	0	inode->i_sb->s_blocksize_bits
UNITS	1	dno	unit_byte
HALF_LOCKED2		&sbi->hpfs_mutex
HALF_LOCKED2	0	&inode->i_rwsem
HALF_LOCKED2	0	&inode->i_sb->s_fs_info->hpfs_mutex