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| author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
|---|---|---|
| committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
| commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
| tree | 6135abc790ca67dedbe07c39806591e70eda81ce /include/linux/klist.h | |
| download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip | |
initial_commit
Diffstat (limited to 'include/linux/klist.h')
| -rw-r--r-- | include/linux/klist.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/include/linux/klist.h b/include/linux/klist.h new file mode 100644 index 00000000..a370ce57 --- /dev/null +++ b/include/linux/klist.h @@ -0,0 +1,68 @@ +/* + * klist.h - Some generic list helpers, extending struct list_head a bit. + * + * Implementations are found in lib/klist.c + * + * + * Copyright (C) 2005 Patrick Mochel + * + * This file is rleased under the GPL v2. + */ + +#ifndef _LINUX_KLIST_H +#define _LINUX_KLIST_H + +#include <linux/spinlock.h> +#include <linux/kref.h> +#include <linux/list.h> + +struct klist_node; +struct klist { + spinlock_t k_lock; + struct list_head k_list; + void (*get)(struct klist_node *); + void (*put)(struct klist_node *); +} __attribute__ ((aligned (sizeof(void *)))); + +#define KLIST_INIT(_name, _get, _put) \ + { .k_lock = __SPIN_LOCK_UNLOCKED(_name.k_lock), \ + .k_list = LIST_HEAD_INIT(_name.k_list), \ + .get = _get, \ + .put = _put, } + +#define DEFINE_KLIST(_name, _get, _put) \ + struct klist _name = KLIST_INIT(_name, _get, _put) + +extern void klist_init(struct klist *k, void (*get)(struct klist_node *), + void (*put)(struct klist_node *)); + +struct klist_node { + void *n_klist; /* never access directly */ + struct list_head n_node; + struct kref n_ref; +}; + +extern void klist_add_tail(struct klist_node *n, struct klist *k); +extern void klist_add_head(struct klist_node *n, struct klist *k); +extern void klist_add_after(struct klist_node *n, struct klist_node *pos); +extern void klist_add_before(struct klist_node *n, struct klist_node *pos); + +extern void klist_del(struct klist_node *n); +extern void klist_remove(struct klist_node *n); + +extern int klist_node_attached(struct klist_node *n); + + +struct klist_iter { + struct klist *i_klist; + struct klist_node *i_cur; +}; + + +extern void klist_iter_init(struct klist *k, struct klist_iter *i); +extern void klist_iter_init_node(struct klist *k, struct klist_iter *i, + struct klist_node *n); +extern void klist_iter_exit(struct klist_iter *i); +extern struct klist_node *klist_next(struct klist_iter *i); + +#endif |