diff options
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 1edcd967eb8e..c5e3ff398b59 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -251,6 +251,9 @@ enum mddev_flags { MD_NOT_READY, /* do_md_run() is active, so 'array_state' * must not report that array is ready yet */ + MD_BROKEN, /* This is used in RAID-0/LINEAR only, to stop + * I/O in case an array member is gone/failed. + */ }; enum mddev_sb_flags { @@ -739,6 +742,19 @@ extern void mddev_create_wb_pool(struct mddev *mddev, struct md_rdev *rdev, struct md_rdev *md_find_rdev_nr_rcu(struct mddev *mddev, int nr); struct md_rdev *md_find_rdev_rcu(struct mddev *mddev, dev_t dev); +static inline bool is_mddev_broken(struct md_rdev *rdev, const char *md_type) +{ + int flags = rdev->bdev->bd_disk->flags; + + if (!(flags & GENHD_FL_UP)) { + if (!test_and_set_bit(MD_BROKEN, &rdev->mddev->flags)) + pr_warn("md: %s: %s array has a missing/failed member\n", + mdname(rdev->mddev), md_type); + return true; + } + return false; +} + static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev) { int faulty = test_bit(Faulty, &rdev->flags); |