| /kernel/linux/linux-5.10/kernel/ |
| D | watch_queue.c | 2 /* Watch queue and general notification mechanism, built on pipes
30 MODULE_DESCRIPTION("Watch queue");
92 * Post a notification to a watch queue.
187 * @wlist: The watch list to post the event to.
190 * @id: The ID to match on the watch.
192 * Post a notification of an event into a set of watch queues and let the users
205 struct watch *watch; in __post_watch_notification() local
214 hlist_for_each_entry_rcu(watch, &wlist->watchers, list_node) { in __post_watch_notification()
215 if (watch->id != id) in __post_watch_notification()
218 n->info |= watch->info_id; in __post_watch_notification()
[all …]
|
| D | audit_watch.c | 33 * audit_krule holds a reference to its associated watch.
100 void audit_get_watch(struct audit_watch *watch) in audit_get_watch() argument
102 refcount_inc(&watch->count); in audit_get_watch()
105 void audit_put_watch(struct audit_watch *watch) in audit_put_watch() argument
107 if (refcount_dec_and_test(&watch->count)) { in audit_put_watch()
108 WARN_ON(watch->parent); in audit_put_watch()
109 WARN_ON(!list_empty(&watch->rules)); in audit_put_watch()
110 kfree(watch->path); in audit_put_watch()
111 kfree(watch); in audit_put_watch()
115 static void audit_remove_watch(struct audit_watch *watch) in audit_remove_watch() argument
[all …]
|
| /kernel/linux/linux-6.6/kernel/ |
| D | watch_queue.c | 2 /* Watch queue and general notification mechanism, built on pipes
30 MODULE_DESCRIPTION("Watch queue");
91 * Post a notification to a watch queue.
183 * @wlist: The watch list to post the event to.
186 * @id: The ID to match on the watch.
188 * Post a notification of an event into a set of watch queues and let the users
201 struct watch *watch; in __post_watch_notification() local
210 hlist_for_each_entry_rcu(watch, &wlist->watchers, list_node) { in __post_watch_notification()
211 if (watch->id != id) in __post_watch_notification()
214 n->info |= watch->info_id; in __post_watch_notification()
[all …]
|
| D | audit_watch.c | 33 * audit_krule holds a reference to its associated watch.
100 void audit_get_watch(struct audit_watch *watch) in audit_get_watch() argument
102 refcount_inc(&watch->count); in audit_get_watch()
105 void audit_put_watch(struct audit_watch *watch) in audit_put_watch() argument
107 if (refcount_dec_and_test(&watch->count)) { in audit_put_watch()
108 WARN_ON(watch->parent); in audit_put_watch()
109 WARN_ON(!list_empty(&watch->rules)); in audit_put_watch()
110 kfree(watch->path); in audit_put_watch()
111 kfree(watch); in audit_put_watch()
115 static void audit_remove_watch(struct audit_watch *watch) in audit_remove_watch() argument
[all …]
|
| /kernel/linux/linux-5.10/Documentation/ |
| D | watch_queue.rst | 33 watch through that pipe. Only sources that have been connected to a pipe will
63 the type of record from that source (see the Watch Sources section below). The
65 internally by the watch queue itself. There are two subtypes:
70 The first indicates that an object on which a watch was installed was removed
79 * The watch ID (mask with WATCH_INFO_ID and shift by WATCH_INFO_ID__SHIFT).
80 This indicates that caller's ID of the watch, which may be between 0
94 Watch List (Notification Source) API
97 A "watch list" is a list of watchers that are subscribed to a source of
100 non-global watch list is typically referred to by reference to the object it
102 watch that specific key).
[all …]
|
| /kernel/linux/linux-6.6/Documentation/core-api/ |
| D | watch_queue.rst | 33 watch through that pipe. Only sources that have been connected to a pipe will
63 the type of record from that source (see the Watch Sources section below). The
65 internally by the watch queue itself. There are two subtypes:
70 The first indicates that an object on which a watch was installed was removed
79 * The watch ID (mask with WATCH_INFO_ID and shift by WATCH_INFO_ID__SHIFT).
80 This indicates that caller's ID of the watch, which may be between 0
94 Watch List (Notification Source) API
97 A "watch list" is a list of watchers that are subscribed to a source of
100 non-global watch list is typically referred to by reference to the object it
102 watch that specific key).
[all …]
|
| /kernel/linux/linux-5.10/drivers/xen/xenbus/ |
| D | xenbus_dev_frontend.c | 97 * alone during a watch callback.
228 struct xenbus_watch watch; member
233 static void free_watch_adapter(struct watch_adapter *watch) in free_watch_adapter() argument
235 kfree(watch->watch.node); in free_watch_adapter()
236 kfree(watch->token); in free_watch_adapter()
237 kfree(watch); in free_watch_adapter()
243 struct watch_adapter *watch; in alloc_watch_adapter() local
245 watch = kzalloc(sizeof(*watch), GFP_KERNEL); in alloc_watch_adapter()
246 if (watch == NULL) in alloc_watch_adapter()
249 watch->watch.node = kstrdup(path, GFP_KERNEL); in alloc_watch_adapter()
[all …]
|
| D | xenbus_xs.c | 59 * New watch events happening in this time can be ignored by firing all watches
81 /* List of pending watch callback events, and a lock to protect it. */
85 /* Protect watch (de)register against save/restore. */
763 /* Register callback to watch this node. */
764 int register_xenbus_watch(struct xenbus_watch *watch) in register_xenbus_watch() argument
767 char token[sizeof(watch) * 2 + 1]; in register_xenbus_watch()
770 sprintf(token, "%lX", (long)watch); in register_xenbus_watch()
772 watch->nr_pending = 0; in register_xenbus_watch()
778 list_add(&watch->list, &watches); in register_xenbus_watch()
781 err = xs_watch(watch->node, token); in register_xenbus_watch()
[all …]
|
| D | xenbus_client.c | 115 * xenbus_watch_path - register a watch
117 * @path: path to watch
118 * @watch: watch to register
121 * Register a @watch on the given path, using the given xenbus_watch structure
124 * @watch->node, and remains the caller's to free. On error, @watch->node will
129 struct xenbus_watch *watch, in xenbus_watch_path() argument
137 watch->node = path; in xenbus_watch_path()
138 watch->will_handle = will_handle; in xenbus_watch_path()
139 watch->callback = callback; in xenbus_watch_path()
141 err = register_xenbus_watch(watch); in xenbus_watch_path()
[all …]
|
| /kernel/linux/linux-6.6/drivers/xen/xenbus/ |
| D | xenbus_dev_frontend.c | 97 * alone during a watch callback.
228 struct xenbus_watch watch; member
233 static void free_watch_adapter(struct watch_adapter *watch) in free_watch_adapter() argument
235 kfree(watch->watch.node); in free_watch_adapter()
236 kfree(watch->token); in free_watch_adapter()
237 kfree(watch); in free_watch_adapter()
243 struct watch_adapter *watch; in alloc_watch_adapter() local
245 watch = kzalloc(sizeof(*watch), GFP_KERNEL); in alloc_watch_adapter()
246 if (watch == NULL) in alloc_watch_adapter()
249 watch->watch.node = kstrdup(path, GFP_KERNEL); in alloc_watch_adapter()
[all …]
|
| D | xenbus_client.c | 115 * xenbus_watch_path - register a watch
117 * @path: path to watch
118 * @watch: watch to register
121 * Register a @watch on the given path, using the given xenbus_watch structure
124 * @watch->node, and remains the caller's to free. On error, @watch->node will
129 struct xenbus_watch *watch, in xenbus_watch_path() argument
137 watch->node = path; in xenbus_watch_path()
138 watch->will_handle = will_handle; in xenbus_watch_path()
139 watch->callback = callback; in xenbus_watch_path()
141 err = register_xenbus_watch(watch); in xenbus_watch_path()
[all …]
|
| D | xenbus_xs.c | 59 * New watch events happening in this time can be ignored by firing all watches
81 /* List of pending watch callback events, and a lock to protect it. */
85 /* Protect watch (de)register against save/restore. */
777 /* Register callback to watch this node. */
778 int register_xenbus_watch(struct xenbus_watch *watch) in register_xenbus_watch() argument
781 char token[sizeof(watch) * 2 + 1]; in register_xenbus_watch()
784 sprintf(token, "%lX", (long)watch); in register_xenbus_watch()
786 watch->nr_pending = 0; in register_xenbus_watch()
792 list_add(&watch->list, &watches); in register_xenbus_watch()
795 err = xs_watch(watch->node, token); in register_xenbus_watch()
[all …]
|
| /kernel/linux/linux-6.6/include/linux/ |
| D | watch_queue.h | 2 /* User-mappable watch queue
52 * Representation of a watch on an object.
54 struct watch { struct
63 const struct cred *cred; /* Creds of the owner of the watch */ argument
75 void (*release_watch)(struct watch *); argument
85 extern void init_watch(struct watch *, struct watch_queue *);
86 extern int add_watch_to_object(struct watch *, struct watch_list *);
95 void (*release_watch)(struct watch *)) in init_watch_list() argument
120 * watch_sizeof - Calculate the information part of the size of a watch record,
|
| /kernel/linux/linux-5.10/include/linux/ |
| D | watch_queue.h | 2 /* User-mappable watch queue
53 * Representation of a watch on an object.
55 struct watch { struct
64 const struct cred *cred; /* Creds of the owner of the watch */ argument
76 void (*release_watch)(struct watch *); argument
86 extern void init_watch(struct watch *, struct watch_queue *);
87 extern int add_watch_to_object(struct watch *, struct watch_list *);
96 void (*release_watch)(struct watch *)) in init_watch_list() argument
121 * watch_sizeof - Calculate the information part of the size of a watch record,
|
| /kernel/linux/linux-6.6/drivers/counter/ |
| D | counter-chrdev.c | 139 struct counter_watch *const watch, in counter_set_event_node() argument
148 if (event_node->event == watch->event && in counter_set_event_node()
149 event_node->channel == watch->channel) in counter_set_event_node()
160 event_node->event = watch->event; in counter_set_event_node()
161 event_node->channel = watch->channel; in counter_set_event_node()
166 /* Check if component watch has already been set before */ in counter_set_event_node()
268 struct counter_watch watch; in counter_add_watch() local
276 if (copy_from_user(&watch, uwatch, sizeof(watch))) in counter_add_watch()
279 if (watch.component.type == COUNTER_COMPONENT_NONE) in counter_add_watch()
282 parent = watch.component.parent; in counter_add_watch()
[all …]
|
| /kernel/linux/linux-6.6/include/uapi/linux/ |
| D | inotify.h | 22 __s32 wd; /* watch descriptor */
23 __u32 mask; /* watch mask */
29 /* the following are legal, implemented events that user-space can watch for */
43 /* the following are legal events. they are sent as needed to any watch */
53 #define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */
57 #define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */
80 * watch descriptor.
|
| D | counter.h | 71 * struct counter_watch - Counter component watch configuration
72 * @component: component to watch when event triggers
84 * Queues a Counter watch for the specified event.
108 * @watch: component watch configuration
114 struct counter_watch watch; member
|
| /kernel/linux/linux-5.10/include/uapi/linux/ |
| D | inotify.h | 22 __s32 wd; /* watch descriptor */
23 __u32 mask; /* watch mask */
29 /* the following are legal, implemented events that user-space can watch for */
43 /* the following are legal events. they are sent as needed to any watch */
53 #define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */
57 #define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */
80 * watch descriptor.
|
| D | watch_queue.h | 67 * Extended watch removal notification. This is used optionally if the type
75 struct watch_notification watch; member
95 * - watch.type = WATCH_TYPE_KEY_NOTIFY
96 * - watch.subtype = enum key_notification_type
99 struct watch_notification watch; member
|
| /kernel/liteos_a/shell/full/src/cmds/ |
| D | watch_shellcmd.c | 51 EVENT_CB_S watchEvent; /* event handle of the watch structure */
52 CHAR cmdbuf[CMD_MAX_LEN]; /* the command to watch */
94 PRINTK("\nUsage: watch\n"); in OsWatchCmdUsage()
95 PRINTK("watch [options] command\n"); in OsWatchCmdUsage()
109 PRINTK("No watch task to turn off.\n"); in OsWatchOverFunc()
170 PRINT_ERR("no watch command!\n"); in OsWatchCmdSplice()
197 PRINT_ERR("Watch event init failed in %s, %d\n", __FUNCTION__, __LINE__); in OsWatchTaskCreate()
210 PRINT_ERR("Watch task init failed in %s, %d\n", __FUNCTION__, __LINE__); in OsWatchTaskCreate()
239 PRINTK("Please turn off previous watch before to start a new watch.\n"); in OsShellCmdWatch()
275 SHELLCMD_ENTRY(watch_shellcmd, CMD_TYPE_EX, "watch", XARGS, (CmdCallBackFunc)OsShellCmdWatch);
|
| /kernel/linux/linux-6.6/Documentation/translations/zh_CN/core-api/ |
| D | watch_queue.rst | 105 void (*release_watch)(struct watch *wlist));
138 struct watch {
159 * ``void init_watch(struct watch *watch, struct watch_queue *wqueue);``
163 * ``int add_watch_to_object(struct watch *watch, struct watch_list *wlist);``
251 (watch.info & info_mask) == info_filter
|
| /kernel/linux/linux-6.6/arch/mips/kernel/ |
| D | watch.c | 12 #include <asm/watch.h>
15 * Install the watch registers for the current thread. A maximum of
20 struct mips3264_watch_reg_state *watches = &t->thread.watch.mips3264; in mips_install_watch_registers()
53 ¤t->thread.watch.mips3264; in mips_read_watch_registers()
75 * since we got here, the watch condition was met and in mips_read_watch_registers()
83 * Disable all watch registers. Although only four registers are
85 * looping in the watch handler.
|
| /kernel/linux/linux-5.10/arch/mips/kernel/ |
| D | watch.c | 12 #include <asm/watch.h>
15 * Install the watch registers for the current thread. A maximum of
20 struct mips3264_watch_reg_state *watches = &t->thread.watch.mips3264; in mips_install_watch_registers()
53 ¤t->thread.watch.mips3264; in mips_read_watch_registers()
75 * since we got here, the watch condition was met and in mips_read_watch_registers()
83 * Disable all watch registers. Although only four registers are
85 * looping in the watch handler.
|
| /kernel/linux/linux-5.10/Documentation/filesystems/ |
| D | inotify.rst | 18 What is the design decision behind not tying the watch to the open fd of
30 an fd-per-watch?
33 An fd-per-watch quickly consumes more file descriptors than are allowed,
37 A watch consumes less memory than an open file, separating the number
47 fd returns all watch events and also any potential out-of-band data. If
48 every fd was a separate watch,
|
| /kernel/linux/linux-6.6/Documentation/filesystems/ |
| D | inotify.rst | 18 What is the design decision behind not tying the watch to the open fd of
30 an fd-per-watch?
33 An fd-per-watch quickly consumes more file descriptors than are allowed,
37 A watch consumes less memory than an open file, separating the number
47 fd returns all watch events and also any potential out-of-band data. If
48 every fd was a separate watch,
|