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authorLars Ellenberg <lars.ellenberg@linbit.com>2014-04-02 01:53:30 +0400
committerPhilipp Reisner <philipp.reisner@linbit.com>2014-07-10 20:35:10 +0400
commite37d2438d8e5e4c1225cf94d45347fa207835447 (patch)
treebd1756066196e9922c476f75759f4846455c2c63 /drivers/block/drbd/drbd_worker.c
parenta8ba0d606933c34c13ea971491a7e0dfa50208ef (diff)
downloadlinux-e37d2438d8e5e4c1225cf94d45347fa207835447.tar.xz
drbd: track meta data IO intent, start and submit time
For diagnostic purposes, track intent, start time and latest submit time of meta data IO. Move separate members from struct drbd_device into the embeded struct drbd_md_io. s/md_io_(page|in_use)/md_io.\1/ Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_worker.c')
-rw-r--r--drivers/block/drbd/drbd_worker.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index ad57129289b5..3978d9ec6f00 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -67,13 +67,10 @@ rwlock_t global_state_lock;
*/
void drbd_md_io_complete(struct bio *bio, int error)
{
- struct drbd_md_io *md_io;
struct drbd_device *device;
- md_io = (struct drbd_md_io *)bio->bi_private;
- device = container_of(md_io, struct drbd_device, md_io);
-
- md_io->error = error;
+ device = bio->bi_private;
+ device->md_io.error = error;
/* We grabbed an extra reference in _drbd_md_sync_page_io() to be able
* to timeout on the lower level device, and eventually detach from it.
@@ -87,7 +84,7 @@ void drbd_md_io_complete(struct bio *bio, int error)
* ASSERT(atomic_read(&device->md_io_in_use) == 1) there.
*/
drbd_md_put_buffer(device);
- md_io->done = 1;
+ device->md_io.done = 1;
wake_up(&device->misc_wait);
bio_put(bio);
if (device->ldev) /* special case: drbd_md_read() during drbd_adm_attach() */