diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/faulty.c | 6 | ||||
| -rw-r--r-- | drivers/md/linear.c | 2 | ||||
| -rw-r--r-- | drivers/md/md.c | 40 | ||||
| -rw-r--r-- | drivers/md/md.h | 1 | ||||
| -rw-r--r-- | drivers/md/multipath.c | 3 | ||||
| -rw-r--r-- | drivers/md/raid0.c | 2 |
6 files changed, 31 insertions, 23 deletions
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index 6e83b38d931d..87d88dbb667f 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -299,8 +299,12 @@ static int run(mddev_t *mddev) { mdk_rdev_t *rdev; int i; + conf_t *conf; - conf_t *conf = kmalloc(sizeof(*conf), GFP_KERNEL); + if (md_check_no_bitmap(mddev)) + return -EINVAL; + + conf = kmalloc(sizeof(*conf), GFP_KERNEL); if (!conf) return -ENOMEM; diff --git a/drivers/md/linear.c b/drivers/md/linear.c index dda2f1b64a6d..564c390f8a1b 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -189,6 +189,8 @@ static int linear_run (mddev_t *mddev) { linear_conf_t *conf; + if (md_check_no_bitmap(mddev)) + return -EINVAL; mddev->queue->queue_lock = &mddev->queue->__queue_lock; conf = linear_conf(mddev, mddev->raid_disks); diff --git a/drivers/md/md.c b/drivers/md/md.c index 0f11fd1417ab..09be637d52cb 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -736,6 +736,24 @@ struct super_type { }; /* + * Check that the given mddev has no bitmap. + * + * This function is called from the run method of all personalities that do not + * support bitmaps. It prints an error message and returns non-zero if mddev + * has a bitmap. Otherwise, it returns 0. + * + */ +int md_check_no_bitmap(mddev_t *mddev) +{ + if (!mddev->bitmap_file && !mddev->bitmap_offset) + return 0; + printk(KERN_ERR "%s: bitmaps are not supported for %s\n", + mdname(mddev), mddev->pers->name); + return 1; +} +EXPORT_SYMBOL(md_check_no_bitmap); + +/* * load_super for 0.90.0 */ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) @@ -788,17 +806,6 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version rdev->data_offset = 0; rdev->sb_size = MD_SB_BYTES; - if (sb->state & (1<<MD_SB_BITMAP_PRESENT)) { - if (sb->level != 1 && sb->level != 4 - && sb->level != 5 && sb->level != 6 - && sb->level != 10) { - /* FIXME use a better test */ - printk(KERN_WARNING - "md: bitmaps not supported for this level.\n"); - goto abort; - } - } - if (sb->level == LEVEL_MULTIPATH) rdev->desc_nr = -1; else @@ -1176,17 +1183,6 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) bdevname(rdev->bdev,b)); return -EINVAL; } - if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_BITMAP_OFFSET)) { - if (sb->level != cpu_to_le32(1) && - sb->level != cpu_to_le32(4) && - sb->level != cpu_to_le32(5) && - sb->level != cpu_to_le32(6) && - sb->level != cpu_to_le32(10)) { - printk(KERN_WARNING - "md: bitmaps not supported for this level.\n"); - return -EINVAL; - } - } rdev->preferred_minor = 0xffff; rdev->data_offset = le64_to_cpu(sb->data_offset); diff --git a/drivers/md/md.h b/drivers/md/md.h index ea2c441449d4..9430a110db93 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -430,5 +430,6 @@ extern void md_new_event(mddev_t *mddev); extern int md_allow_write(mddev_t *mddev); extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev); extern void md_set_array_sectors(mddev_t *mddev, sector_t array_sectors); +extern int md_check_no_bitmap(mddev_t *mddev); #endif /* _MD_MD_H */ diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index c1ca63f278a9..cbe368fa6598 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -421,6 +421,9 @@ static int multipath_run (mddev_t *mddev) struct multipath_info *disk; mdk_rdev_t *rdev; + if (md_check_no_bitmap(mddev)) + return -EINVAL; + if (mddev->level != LEVEL_MULTIPATH) { printk("multipath: %s: raid level not set to multipath IO (%d)\n", mdname(mddev), mddev->level); diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 717e64a4af9a..ab4a489d8695 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -314,6 +314,8 @@ static int raid0_run(mddev_t *mddev) printk(KERN_ERR "md/raid0: chunk size must be set.\n"); return -EINVAL; } + if (md_check_no_bitmap(mddev)) + return -EINVAL; blk_queue_max_sectors(mddev->queue, mddev->chunk_sectors); mddev->queue->queue_lock = &mddev->queue->__queue_lock; |
