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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/md/dm-uevent.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/md/dm-uevent.c')
-rw-r--r--ANDROID_3.4.5/drivers/md/dm-uevent.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/ANDROID_3.4.5/drivers/md/dm-uevent.c b/ANDROID_3.4.5/drivers/md/dm-uevent.c
deleted file mode 100644
index 8efe033b..00000000
--- a/ANDROID_3.4.5/drivers/md/dm-uevent.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Device Mapper Uevent Support (dm-uevent)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2007
- * Author: Mike Anderson <andmike@linux.vnet.ibm.com>
- */
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/kobject.h>
-#include <linux/dm-ioctl.h>
-#include <linux/export.h>
-
-#include "dm.h"
-#include "dm-uevent.h"
-
-#define DM_MSG_PREFIX "uevent"
-
-static const struct {
- enum dm_uevent_type type;
- enum kobject_action action;
- char *name;
-} _dm_uevent_type_names[] = {
- {DM_UEVENT_PATH_FAILED, KOBJ_CHANGE, "PATH_FAILED"},
- {DM_UEVENT_PATH_REINSTATED, KOBJ_CHANGE, "PATH_REINSTATED"},
-};
-
-static struct kmem_cache *_dm_event_cache;
-
-struct dm_uevent {
- struct mapped_device *md;
- enum kobject_action action;
- struct kobj_uevent_env ku_env;
- struct list_head elist;
- char name[DM_NAME_LEN];
- char uuid[DM_UUID_LEN];
-};
-
-static void dm_uevent_free(struct dm_uevent *event)
-{
- kmem_cache_free(_dm_event_cache, event);
-}
-
-static struct dm_uevent *dm_uevent_alloc(struct mapped_device *md)
-{
- struct dm_uevent *event;
-
- event = kmem_cache_zalloc(_dm_event_cache, GFP_ATOMIC);
- if (!event)
- return NULL;
-
- INIT_LIST_HEAD(&event->elist);
- event->md = md;
-
- return event;
-}
-
-static struct dm_uevent *dm_build_path_uevent(struct mapped_device *md,
- struct dm_target *ti,
- enum kobject_action action,
- const char *dm_action,
- const char *path,
- unsigned nr_valid_paths)
-{
- struct dm_uevent *event;
-
- event = dm_uevent_alloc(md);
- if (!event) {
- DMERR("%s: dm_uevent_alloc() failed", __func__);
- goto err_nomem;
- }
-
- event->action = action;
-
- if (add_uevent_var(&event->ku_env, "DM_TARGET=%s", ti->type->name)) {
- DMERR("%s: add_uevent_var() for DM_TARGET failed",
- __func__);
- goto err_add;
- }
-
- if (add_uevent_var(&event->ku_env, "DM_ACTION=%s", dm_action)) {
- DMERR("%s: add_uevent_var() for DM_ACTION failed",
- __func__);
- goto err_add;
- }
-
- if (add_uevent_var(&event->ku_env, "DM_SEQNUM=%u",
- dm_next_uevent_seq(md))) {
- DMERR("%s: add_uevent_var() for DM_SEQNUM failed",
- __func__);
- goto err_add;
- }
-
- if (add_uevent_var(&event->ku_env, "DM_PATH=%s", path)) {
- DMERR("%s: add_uevent_var() for DM_PATH failed", __func__);
- goto err_add;
- }
-
- if (add_uevent_var(&event->ku_env, "DM_NR_VALID_PATHS=%d",
- nr_valid_paths)) {
- DMERR("%s: add_uevent_var() for DM_NR_VALID_PATHS failed",
- __func__);
- goto err_add;
- }
-
- return event;
-
-err_add:
- dm_uevent_free(event);
-err_nomem:
- return ERR_PTR(-ENOMEM);
-}
-
-/**
- * dm_send_uevents - send uevents for given list
- *
- * @events: list of events to send
- * @kobj: kobject generating event
- *
- */
-void dm_send_uevents(struct list_head *events, struct kobject *kobj)
-{
- int r;
- struct dm_uevent *event, *next;
-
- list_for_each_entry_safe(event, next, events, elist) {
- list_del_init(&event->elist);
-
- /*
- * When a device is being removed this copy fails and we
- * discard these unsent events.
- */
- if (dm_copy_name_and_uuid(event->md, event->name,
- event->uuid)) {
- DMINFO("%s: skipping sending uevent for lost device",
- __func__);
- goto uevent_free;
- }
-
- if (add_uevent_var(&event->ku_env, "DM_NAME=%s", event->name)) {
- DMERR("%s: add_uevent_var() for DM_NAME failed",
- __func__);
- goto uevent_free;
- }
-
- if (add_uevent_var(&event->ku_env, "DM_UUID=%s", event->uuid)) {
- DMERR("%s: add_uevent_var() for DM_UUID failed",
- __func__);
- goto uevent_free;
- }
-
- r = kobject_uevent_env(kobj, event->action, event->ku_env.envp);
- if (r)
- DMERR("%s: kobject_uevent_env failed", __func__);
-uevent_free:
- dm_uevent_free(event);
- }
-}
-EXPORT_SYMBOL_GPL(dm_send_uevents);
-
-/**
- * dm_path_uevent - called to create a new path event and queue it
- *
- * @event_type: path event type enum
- * @ti: pointer to a dm_target
- * @path: string containing pathname
- * @nr_valid_paths: number of valid paths remaining
- *
- */
-void dm_path_uevent(enum dm_uevent_type event_type, struct dm_target *ti,
- const char *path, unsigned nr_valid_paths)
-{
- struct mapped_device *md = dm_table_get_md(ti->table);
- struct dm_uevent *event;
-
- if (event_type >= ARRAY_SIZE(_dm_uevent_type_names)) {
- DMERR("%s: Invalid event_type %d", __func__, event_type);
- return;
- }
-
- event = dm_build_path_uevent(md, ti,
- _dm_uevent_type_names[event_type].action,
- _dm_uevent_type_names[event_type].name,
- path, nr_valid_paths);
- if (IS_ERR(event))
- return;
-
- dm_uevent_add(md, &event->elist);
-}
-EXPORT_SYMBOL_GPL(dm_path_uevent);
-
-int dm_uevent_init(void)
-{
- _dm_event_cache = KMEM_CACHE(dm_uevent, 0);
- if (!_dm_event_cache)
- return -ENOMEM;
-
- DMINFO("version 1.0.3");
-
- return 0;
-}
-
-void dm_uevent_exit(void)
-{
- kmem_cache_destroy(_dm_event_cache);
-}