zfs_dirlock Struct Reference

Directory Entry Locks. More...

#include <zfs_znode.h>

Collaboration diagram for zfs_dirlock:

Data Fields
char *	dl_name
	directory entry being locked
uint32_t	dl_sharecnt
	0 if exclusive, > 0 if shared
uint8_t	dl_namelock
	1 if z_name_lock is NOT held
uint16_t	dl_namesize
	set if dl_name was allocated
kcondvar_t	dl_cv
	wait for entry to be unlocked
struct znode *	dl_dzp
	directory znode
struct zfs_dirlock *	dl_next
	next in z_dirlocks list

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Detailed Description

Directory Entry Locks.

Directory entry locks control access to directory entries. They are used to protect creates, deletes, and renames. Each directory znode has a mutex and a list of locked names.

Definition at line 181 of file zfs_znode.h.

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Field Documentation

kcondvar_t zfs_dirlock::dl_cv

wait for entry to be unlocked

Definition at line 186 of file zfs_znode.h.

struct znode* zfs_dirlock::dl_dzp

directory znode

Definition at line 187 of file zfs_znode.h.

char* zfs_dirlock::dl_name

directory entry being locked

Definition at line 182 of file zfs_znode.h.

uint8_t zfs_dirlock::dl_namelock

1 if z_name_lock is NOT held

Definition at line 184 of file zfs_znode.h.

uint16_t zfs_dirlock::dl_namesize

set if dl_name was allocated

Definition at line 185 of file zfs_znode.h.

struct zfs_dirlock* zfs_dirlock::dl_next

next in z_dirlocks list

Definition at line 188 of file zfs_znode.h.

uint32_t zfs_dirlock::dl_sharecnt

0 if exclusive, > 0 if shared

Definition at line 183 of file zfs_znode.h.

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The documentation for this struct was generated from the following file:

• sys/zfs_znode.h