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author | Ingo Molnar <mingo@elte.hu> | 2008-09-10 11:32:52 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-09-10 11:32:52 +0200 |
commit | e92b4fdacc6a7d8cc7895b81347671d5fcd6c5e1 (patch) | |
tree | 4f84567261682d8ec2ad4102bce1ff970a6eed1a /block/genhd.c | |
parent | 9fcaff0e660d886e9a766460adbe558dd25de31b (diff) | |
parent | adee14b2e1557d0a8559f29681732d05a89dfc35 (diff) | |
download | linux-e92b4fdacc6a7d8cc7895b81347671d5fcd6c5e1.tar.bz2 |
Merge commit 'v2.6.27-rc6' into x86/iommu
Diffstat (limited to 'block/genhd.c')
-rw-r--r-- | block/genhd.c | 51 |
1 files changed, 36 insertions, 15 deletions
diff --git a/block/genhd.c b/block/genhd.c index c13cc77291af..e0ce23ac2ece 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -190,7 +190,6 @@ void add_disk(struct gendisk *disk) disk->minors, NULL, exact_match, exact_lock, disk); register_disk(disk); blk_register_queue(disk); - blk_register_filter(disk); bdi = &disk->queue->backing_dev_info; bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor)); @@ -203,7 +202,6 @@ EXPORT_SYMBOL(del_gendisk); /* in partitions/check.c */ void unlink_gendisk(struct gendisk *disk) { - blk_unregister_filter(disk); sysfs_remove_link(&disk->dev.kobj, "bdi"); bdi_unregister(&disk->queue->backing_dev_info); blk_unregister_queue(disk); @@ -293,27 +291,30 @@ void __init printk_all_partitions(void) /* iterator */ static int find_start(struct device *dev, void *data) { - loff_t k = *(loff_t *)data; + loff_t *k = data; if (dev->type != &disk_type) return 0; - if (!k--) + if (!*k) return 1; + (*k)--; return 0; } static void *part_start(struct seq_file *part, loff_t *pos) { struct device *dev; - loff_t n = *pos; + loff_t k = *pos; - if (!n) - seq_puts(part, "major minor #blocks name\n\n"); + if (!k) + part->private = (void *)1LU; /* tell show to print header */ mutex_lock(&block_class_lock); - dev = class_find_device(&block_class, NULL, (void *)pos, find_start); - if (dev) + dev = class_find_device(&block_class, NULL, &k, find_start); + if (dev) { + put_device(dev); return dev_to_disk(dev); + } return NULL; } @@ -330,8 +331,10 @@ static void *part_next(struct seq_file *part, void *v, loff_t *pos) struct device *dev; ++*pos; dev = class_find_device(&block_class, &gp->dev, NULL, find_next); - if (dev) + if (dev) { + put_device(dev); return dev_to_disk(dev); + } return NULL; } @@ -346,6 +349,17 @@ static int show_partition(struct seq_file *part, void *v) int n; char buf[BDEVNAME_SIZE]; + /* + * Print header if start told us to do. This is to preserve + * the original behavior of not printing header if no + * partition exists. This hackery will be removed later with + * class iteration clean up. + */ + if (part->private) { + seq_puts(part, "major minor #blocks name\n\n"); + part->private = NULL; + } + /* Don't show non-partitionable removeable devices or empty devices */ if (!get_capacity(sgp) || (sgp->minors == 1 && (sgp->flags & GENHD_FL_REMOVABLE))) @@ -568,11 +582,14 @@ static struct device_type disk_type = { static void *diskstats_start(struct seq_file *part, loff_t *pos) { struct device *dev; + loff_t k = *pos; mutex_lock(&block_class_lock); - dev = class_find_device(&block_class, NULL, (void *)pos, find_start); - if (dev) + dev = class_find_device(&block_class, NULL, &k, find_start); + if (dev) { + put_device(dev); return dev_to_disk(dev); + } return NULL; } @@ -583,8 +600,10 @@ static void *diskstats_next(struct seq_file *part, void *v, loff_t *pos) ++*pos; dev = class_find_device(&block_class, &gp->dev, NULL, find_next); - if (dev) + if (dev) { + put_device(dev); return dev_to_disk(dev); + } return NULL; } @@ -712,10 +731,12 @@ dev_t blk_lookup_devt(const char *name, int part) mutex_lock(&block_class_lock); find.name = name; find.part = part; - dev = class_find_device(&block_class, NULL, (void *)&find, match_id); - if (dev) + dev = class_find_device(&block_class, NULL, &find, match_id); + if (dev) { + put_device(dev); devt = MKDEV(MAJOR(dev->devt), MINOR(dev->devt) + part); + } mutex_unlock(&block_class_lock); return devt; |