diff options
Diffstat (limited to 'sys/fs/tmpfs/tmpfs.h')
| -rw-r--r-- | sys/fs/tmpfs/tmpfs.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/fs/tmpfs/tmpfs.h b/sys/fs/tmpfs/tmpfs.h index fe81d39..8661f42 100644 --- a/sys/fs/tmpfs/tmpfs.h +++ b/sys/fs/tmpfs/tmpfs.h @@ -158,9 +158,11 @@ struct tmpfs_node { * Doubly-linked list entry which links all existing nodes for * a single file system. This is provided to ease the removal * of all nodes during the unmount operation, and to support - * the implementation of VOP_VNTOCNP(). + * the implementation of VOP_VNTOCNP(). tn_attached is false + * when the node is removed from list and unlocked. */ LIST_ENTRY(tmpfs_node) tn_entries; /* (m) */ + bool tn_attached; /* (m) */ /* * The node's type. Any of 'VBLK', 'VCHR', 'VDIR', 'VFIFO', @@ -231,6 +233,9 @@ struct tmpfs_node { */ int tn_vpstate; /* (i) */ + /* Transient refcounter on this node. */ + u_int tn_refcount; /* (m) + (i) */ + /* misc data field for different tn_type node */ union { /* Valid when tn_type == VBLK || tn_type == VCHR. */ @@ -358,6 +363,9 @@ struct tmpfs_mount { /* Number of nodes currently that are in use. */ ino_t tm_nodes_inuse; + /* Refcounter on this struct tmpfs_mount. */ + uint64_t tm_refcount; + /* maximum representable file size */ u_int64_t tm_maxfilesize; @@ -402,10 +410,14 @@ struct tmpfs_dir_cursor { * Prototypes for tmpfs_subr.c. */ +void tmpfs_ref_node(struct tmpfs_node *node); +void tmpfs_ref_node_locked(struct tmpfs_node *node); int tmpfs_alloc_node(struct mount *mp, struct tmpfs_mount *, enum vtype, uid_t uid, gid_t gid, mode_t mode, struct tmpfs_node *, char *, dev_t, struct tmpfs_node **); void tmpfs_free_node(struct tmpfs_mount *, struct tmpfs_node *); +bool tmpfs_free_node_locked(struct tmpfs_mount *, struct tmpfs_node *, bool); +void tmpfs_free_tmp(struct tmpfs_mount *); int tmpfs_alloc_dirent(struct tmpfs_mount *, struct tmpfs_node *, const char *, u_int, struct tmpfs_dirent **); void tmpfs_free_dirent(struct tmpfs_mount *, struct tmpfs_dirent *); |
