src/patches/suse-2.6.27.25/patches.fixes/md-update-size

   1 From: NeilBrown <neilb@suse.de>
   2 References: bnc#509495
   3 Subject: Update size of md device as soon as it is successfully assemble.
   4
   5 It is import that we get the size of an md device 'right' before
   6 generating the KOBJ_CHANGE message.  If we don't, then if a program
   7 runs as a result of that message and open the md device before the
   8 mdadm which created the device closes it, the new program will see a
   9 size of zero which will be confusing.
  10
  11 So call revalidate_disk, which checks and updates the size.
  12
  13 Signed-off-by: NeilBrown <neilb@suse.de>
  14
  15 ---
  16  drivers/md/md.c |    1 +
  17  1 file changed, 1 insertion(+)
  18
  19 --- linux-2.6.27-SLE11_BRANCH.orig/drivers/md/md.c
  20 +++ linux-2.6.27-SLE11_BRANCH/drivers/md/md.c
  21 @@ -3809,6 +3809,7 @@ static int do_md_run(mddev_t * mddev)
  22         md_wakeup_thread(mddev->thread);
  23         md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */
  24
  25 +       revalidate_disk(mddev->gendisk);
  26         mddev->changed = 1;
  27         md_new_event(mddev);
  28         sysfs_notify(&mddev->kobj, NULL, "array_state");