Messages in this thread Patches in this message | | | From | NeilBrown <> | Date | Mon, 3 Mar 2008 11:17:24 +1100 | Subject | [PATCH 004 of 9] md: Clean up irregularity with raid autodetect. |
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When a raid1 array is stopped, all components currently get added to the list for auto-detection. However we should really only add components that were found by autodetection in the first place. So add a flag to record that information, and use it.
Signed-off-by: Neil Brown <neilb@suse.de>
### Diffstat output ./drivers/md/md.c | 4 +++- ./include/linux/raid/md_k.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-)
diff .prev/drivers/md/md.c ./drivers/md/md.c --- .prev/drivers/md/md.c 2008-02-22 15:46:10.000000000 +1100 +++ ./drivers/md/md.c 2008-02-22 15:46:25.000000000 +1100 @@ -1503,7 +1503,8 @@ static void export_rdev(mdk_rdev_t * rde free_disk_sb(rdev); list_del_init(&rdev->same_set); #ifndef MODULE - md_autodetect_dev(rdev->bdev->bd_dev); + if (test_bit(AutoDetected, &rdev->flags)) + md_autodetect_dev(rdev->bdev->bd_dev); #endif unlock_rdev(rdev); kobject_put(&rdev->kobj); @@ -6025,6 +6026,7 @@ static void autostart_arrays(int part) MD_BUG(); continue; } + set_bit(AutoDetected, &rdev->flags); list_add(&rdev->same_set, &pending_raid_disks); i_passed++; } diff .prev/include/linux/raid/md_k.h ./include/linux/raid/md_k.h --- .prev/include/linux/raid/md_k.h 2008-02-22 15:46:25.000000000 +1100 +++ ./include/linux/raid/md_k.h 2008-02-22 15:46:25.000000000 +1100 @@ -83,6 +83,7 @@ struct mdk_rdev_s #define BarriersNotsupp 5 /* BIO_RW_BARRIER is not supported */ #define AllReserved 6 /* If whole device is reserved for * one array */ +#define AutoDetected 7 /* added by auto-detect */ int desc_nr; /* descriptor index in the superblock */ int raid_disk; /* role of device in array */
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