diff options
| author | Hannes Reinecke <hare@suse.de> | 2012-07-26 11:12:18 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2015-02-05 23:32:57 +0100 |
| commit | dfe15ac1c6ad301b092ed295f0cfdb16cfaf5cfa (patch) | |
| tree | 2b3fcf506f4956a34f709eef4c9bc9260e5ae788 /drivers | |
| parent | md: make reconfig_mutex optional for writes to md sysfs files. (diff) | |
| download | linux-dfe15ac1c6ad301b092ed295f0cfdb16cfaf5cfa.tar.xz linux-dfe15ac1c6ad301b092ed295f0cfdb16cfaf5cfa.zip | |
md: wakeup thread upon rdev_dec_pending()
After each call to rdev_dec_pending() we should wakeup the
md thread if the device is found to be faulty.
Otherwise we'll incur heavy delays on failing devices.
Signed-off-by: Neil Brown <nfbrown@suse.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/md.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 14367d919351..318ca8fd430f 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -474,13 +474,6 @@ static inline int mddev_trylock(struct mddev *mddev) } extern void mddev_unlock(struct mddev *mddev); -static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev) -{ - int faulty = test_bit(Faulty, &rdev->flags); - if (atomic_dec_and_test(&rdev->nr_pending) && faulty) - set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); -} - static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors) { atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); @@ -666,4 +659,14 @@ static inline int mddev_check_plugged(struct mddev *mddev) return !!blk_check_plugged(md_unplug, mddev, sizeof(struct blk_plug_cb)); } + +static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev) +{ + int faulty = test_bit(Faulty, &rdev->flags); + if (atomic_dec_and_test(&rdev->nr_pending) && faulty) { + set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); + md_wakeup_thread(mddev->thread); + } +} + #endif /* _MD_MD_H */ |