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| author | NeilBrown <neilb@suse.de> | 2010-03-29 11:10:42 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2010-05-18 15:27:53 +1000 |
| commit | fe60b0142813002be16dfae28780d9779ee22473 (patch) | |
| tree | 1b2337036bbb30857531cd2d54729d38fdd75a3a /drivers/md | |
| parent | b821eaa572fd737faaf6928ba046e571526c36c6 (diff) | |
| download | linux-3.10-fe60b0142813002be16dfae28780d9779ee22473.tar.gz linux-3.10-fe60b0142813002be16dfae28780d9779ee22473.tar.bz2 linux-3.10-fe60b0142813002be16dfae28780d9779ee22473.zip | |
md: factor do_md_run to separate accesses to ->gendisk
As part of relaxing the binding between an mddev and gendisk,
we separate do_md_run into two functions.
md_run does all the work internal to md
do_md_run calls md_run and makes and changes to gendisk
that are required.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index f2b30019b1c..e752332268d 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4297,11 +4297,10 @@ static void md_safemode_timeout(unsigned long data) static int start_dirty_degraded; -static int do_md_run(mddev_t * mddev) +static int md_run(mddev_t *mddev) { int err; mdk_rdev_t *rdev; - struct gendisk *disk; struct mdk_personality *pers; if (list_empty(&mddev->disks)) @@ -4366,8 +4365,6 @@ static int do_md_run(mddev_t * mddev) sysfs_notify_dirent(rdev->sysfs_state); } - disk = mddev->gendisk; - spin_lock(&pers_lock); pers = find_pers(mddev->level, mddev->clevel); if (!pers || !try_module_get(pers->owner)) { @@ -4495,21 +4492,32 @@ static int do_md_run(mddev_t * mddev) if (mddev->flags) md_update_sb(mddev, 0); - set_capacity(disk, mddev->array_sectors); - md_wakeup_thread(mddev->thread); md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */ - revalidate_disk(mddev->gendisk); md_new_event(mddev); sysfs_notify_dirent(mddev->sysfs_state); if (mddev->sysfs_action) sysfs_notify_dirent(mddev->sysfs_action); sysfs_notify(&mddev->kobj, NULL, "degraded"); - kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE); return 0; } +static int do_md_run(mddev_t *mddev) +{ + int err; + + err = md_run(mddev); + if (err) + goto out; + + set_capacity(mddev->gendisk, mddev->array_sectors); + revalidate_disk(mddev->gendisk); + kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE); +out: + return err; +} + static int restart_array(mddev_t *mddev) { struct gendisk *disk = mddev->gendisk; |