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| author | Jonathan Brassow <jbrassow@redhat.com> | 2011-06-07 17:49:36 -0500 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-06-08 15:11:31 +1000 |
| commit | 0fd018af37dadbb7826850883ad8abfecdb1a00b (patch) | |
| tree | f95ebb9ec9111dc87ad8037ff7e07da802d924e3 /drivers/md | |
| parent | ac42450c7c814769bee963ae4b897c149bb0ab53 (diff) | |
| download | linux-0fd018af37dadbb7826850883ad8abfecdb1a00b.tar.gz linux-0fd018af37dadbb7826850883ad8abfecdb1a00b.tar.bz2 linux-0fd018af37dadbb7826850883ad8abfecdb1a00b.zip | |
MD: move thread wakeups into resume
Move personality and sync/recovery thread starting outside md_run.
Moving the wakeup's of the personality and sync/recovery threads out of
md_run and into do_md_run and mddev_resume solves two issues:
1) It allows bitmap_load to be called before the sync_thread is run and
2) when MD personalities are used by device-mapper (dm-raid.c), the start-up
of the array is better alligned with device-mapper primatives
(CTR/resume/suspend/DTR). I/O - in this case, recovery operations - should
not happen until after a resume has taken place.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 3715e89dcaae..d5385188c445 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -351,6 +351,9 @@ void mddev_resume(mddev_t *mddev) mddev->suspended = 0; wake_up(&mddev->sb_wait); mddev->pers->quiesce(mddev, 0); + + md_wakeup_thread(mddev->thread); + md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */ } EXPORT_SYMBOL_GPL(mddev_resume); @@ -4619,9 +4622,6 @@ int md_run(mddev_t *mddev) if (mddev->flags) md_update_sb(mddev, 0); - md_wakeup_thread(mddev->thread); - md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */ - md_new_event(mddev); sysfs_notify_dirent_safe(mddev->sysfs_state); sysfs_notify_dirent_safe(mddev->sysfs_action); @@ -4642,6 +4642,10 @@ static int do_md_run(mddev_t *mddev) bitmap_destroy(mddev); goto out; } + + md_wakeup_thread(mddev->thread); + md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */ + set_capacity(mddev->gendisk, mddev->array_sectors); revalidate_disk(mddev->gendisk); mddev->changed = 1; |