A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

target: Add global device list for EXTENDED_COPY

Browse source 
EXTENDED_COPY needs to be able to search a global list of devices
based on NAA WWN device identifiers, so add a simple g_device_list
protected by g_device_mutex.

Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Martin Petersen <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Roland Dreier <[email protected]>
Cc: Zach Brown <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: Nicholas Bellinger <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Nicholas Bellinger 2013-08-22 11:33:37 -07:00 • committed by Nicholas Bellinger
commit d9ea32bff2
2 changed files with 14 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
drivers/target/target_core_device.c
View file

@ -47,6 +47,9 @@
#include "target_core_pr.h"
#include "target_core_ua.h"
DEFINE_MUTEX(g_device_mutex);
LIST_HEAD(g_device_list);
static struct se_hba *lun0_hba;
/* not static, needed by tpg.c */
struct se_device *g_lun0_dev;
@ -1406,6 +1409,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
INIT_LIST_HEAD(&dev->delayed_cmd_list);
INIT_LIST_HEAD(&dev->state_list);
INIT_LIST_HEAD(&dev->qf_cmd_list);
INIT_LIST_HEAD(&dev->g_dev_node);
spin_lock_init(&dev->stats_lock);
spin_lock_init(&dev->execute_task_lock);
spin_lock_init(&dev->delayed_cmd_lock);
@ -1525,6 +1529,11 @@ int target_configure_device(struct se_device *dev)
spin_lock(&hba->device_lock);
hba->dev_count++;
spin_unlock(&hba->device_lock);
mutex_lock(&g_device_mutex);
list_add_tail(&dev->g_dev_node, &g_device_list);
mutex_unlock(&g_device_mutex);
return 0;
out_free_alua:
@ -1543,6 +1552,10 @@ void target_free_device(struct se_device *dev)
if (dev->dev_flags & DF_CONFIGURED) {
destroy_workqueue(dev->tmr_wq);
mutex_lock(&g_device_mutex);
list_del(&dev->g_dev_node);
mutex_unlock(&g_device_mutex);
spin_lock(&hba->device_lock);
hba->dev_count--;
spin_unlock(&hba->device_lock);