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MD: change the parameter of md thread 

Change the thread parameter, so the thread can carry extra info. Next patch
will use it.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Shaohua Li 2012-10-11 13:34:00 +11:00 committed by NeilBrown
parent 57c67df488
commit 4ed8731d8e
6 changed files with 17 additions and 11 deletions
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9
drivers/md/md.c
View File

@ -6641,7 +6641,7 @@ static int md_thread(void * arg)
clear_bit(THREAD_WAKEUP, &thread->flags);
if (!kthread_should_stop())
thread->run(thread->mddev);
thread->run(thread);
}
return 0;
@ -6656,8 +6656,8 @@ void md_wakeup_thread(struct md_thread *thread)
}
}
struct md_thread *md_register_thread(void (*run) (struct mddev *), struct mddev *mddev,
const char *name)
struct md_thread *md_register_thread(void (*run) (struct md_thread *),
struct mddev *mddev, const char *name)
{
struct md_thread *thread;
@ -7206,8 +7206,9 @@ EXPORT_SYMBOL_GPL(md_allow_write);
#define SYNC_MARKS 10
#define SYNC_MARK_STEP (3*HZ)
void md_do_sync(struct mddev *mddev)
void md_do_sync(struct md_thread *thread)
{
struct mddev *mddev = thread->mddev;
struct mddev *mddev2;
unsigned int currspeed = 0,
window;

7
drivers/md/md.h
View File

@ -540,12 +540,13 @@ static inline void sysfs_unlink_rdev(struct mddev *mddev, struct md_rdev *rdev)
list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set)
struct md_thread {
void (*run) (struct mddev *mddev);
void (*run) (struct md_thread *thread);
struct mddev *mddev;
wait_queue_head_t wqueue;
unsigned long flags;
struct task_struct *tsk;
unsigned long timeout;
void *private;
};
#define THREAD_WAKEUP 0
@ -584,7 +585,7 @@ static inline void safe_put_page(struct page *p)
extern int register_md_personality(struct md_personality *p);
extern int unregister_md_personality(struct md_personality *p);
extern struct md_thread *md_register_thread(
void (*run)(struct mddev *mddev),
void (*run)(struct md_thread *thread),
struct mddev *mddev,
const char *name);
extern void md_unregister_thread(struct md_thread **threadp);
@ -603,7 +604,7 @@ extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
extern void md_super_wait(struct mddev *mddev);
extern int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
struct page *page, int rw, bool metadata_op);
extern void md_do_sync(struct mddev *mddev);
extern void md_do_sync(struct md_thread *thread);
extern void md_new_event(struct mddev *mddev);
extern int md_allow_write(struct mddev *mddev);
extern void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev);

3
drivers/md/multipath.c
View File

@ -335,8 +335,9 @@ abort:
* 3. Performs writes following reads for array syncronising.
*/
static void multipathd (struct mddev *mddev)
static void multipathd(struct md_thread *thread)
{
struct mddev *mddev = thread->mddev;
struct multipath_bh *mp_bh;
struct bio *bio;
unsigned long flags;

3
drivers/md/raid1.c
View File

@ -2294,8 +2294,9 @@ read_more:
}
}
static void raid1d(struct mddev *mddev)
static void raid1d(struct md_thread *thread)
{
struct mddev *mddev = thread->mddev;
struct r1bio *r1_bio;
unsigned long flags;
struct r1conf *conf = mddev->private;

3
drivers/md/raid10.c
View File

@ -2732,8 +2732,9 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
}
}
static void raid10d(struct mddev *mddev)
static void raid10d(struct md_thread *thread)
{
struct mddev *mddev = thread->mddev;
struct r10bio *r10_bio;
unsigned long flags;
struct r10conf *conf = mddev->private;

3
drivers/md/raid5.c
View File

@ -4625,8 +4625,9 @@ static int handle_active_stripes(struct r5conf *conf)
* During the scan, completed stripes are saved for us by the interrupt
* handler, so that they will not have to wait for our next wakeup.
*/
static void raid5d(struct mddev *mddev)
static void raid5d(struct md_thread *thread)
{
struct mddev *mddev = thread->mddev;
struct r5conf *conf = mddev->private;
int handled;
struct blk_plug plug;