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drbd: moved md_io into mdev 

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2011-06-26 11:20:27 +02:00
parent 2b4dd36fba
commit cc94c65015
3 changed files with 10 additions and 9 deletions
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12
drivers/block/drbd/drbd_actlog.c
View File

@ -71,12 +71,10 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
int rw, int size)
{
struct bio *bio;
struct drbd_md_io md_io;
int ok;
md_io.mdev = mdev;
init_completion(&md_io.event);
md_io.error = 0;
init_completion(&mdev->md_io.event);
mdev->md_io.error = 0;
if ((rw & WRITE) && !test_bit(MD_NO_FUA, &mdev->flags))
rw |= REQ_FUA | REQ_FLUSH;
@ -88,7 +86,7 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
ok = (bio_add_page(bio, page, size, 0) == size);
if (!ok)
goto out;
bio->bi_private = &md_io;
bio->bi_private = &mdev->md_io;
bio->bi_end_io = drbd_md_io_complete;
bio->bi_rw = rw;
@ -96,8 +94,8 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
bio_endio(bio, -EIO);
else
submit_bio(rw, bio);
wait_for_completion(&md_io.event);
ok = bio_flagged(bio, BIO_UPTODATE) && md_io.error == 0;
wait_for_completion(&mdev->md_io.event);
ok = bio_flagged(bio, BIO_UPTODATE) && mdev->md_io.error == 0;
out:
bio_put(bio);

4
drivers/block/drbd/drbd_int.h
View File

@ -938,7 +938,6 @@ struct drbd_backing_dev {
};
struct drbd_md_io {
struct drbd_conf *mdev;
struct completion event;
int error;
};
@ -1095,7 +1094,8 @@ struct drbd_conf {
wait_queue_head_t ee_wait;
struct page *md_io_page; /* one page buffer for md_io */
struct page *md_io_tmpp; /* for logical_block_size != 512 */
struct mutex md_io_mutex; /* protects the md_io_buffer */
struct drbd_md_io md_io;
struct mutex md_io_mutex; /* protects the md_io, md_io_page and md_io_tmpp */
spinlock_t al_lock;
wait_queue_head_t al_wait;
struct lru_cache *act_log; /* activity log */

3
drivers/block/drbd/drbd_worker.c
View File

@ -70,8 +70,11 @@ rwlock_t global_state_lock;
void drbd_md_io_complete(struct bio *bio, int error)
{
struct drbd_md_io *md_io;
struct drbd_conf *mdev;
md_io = (struct drbd_md_io *)bio->bi_private;
mdev = container_of(md_io, struct drbd_conf, md_io);
md_io->error = error;
complete(&md_io->event);