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| author | Jun'ichi Nomura <j-nomura@ce.jp.nec.com> | 2006-03-27 01:17:59 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-27 08:45:00 -0800 |
| commit | f165921df46a977e3561f1bd9f13a348441486d1 (patch) | |
| tree | a44679427f97090aeb4d5ba62568a41f4b367763 /drivers/md | |
| parent | 5463c7904c952aa6b6804dd902c72a5332fa5221 (diff) | |
| download | linux-f165921df46a977e3561f1bd9f13a348441486d1.tar.gz linux-f165921df46a977e3561f1bd9f13a348441486d1.tar.bz2 linux-f165921df46a977e3561f1bd9f13a348441486d1.zip | |
[PATCH] dm/md dependency tree in sysfs: dm to use bd_claim_by_disk
Use bd_claim_by_disk.
Following symlinks are created if dm-0 maps to sda:
/sys/block/dm-0/slaves/sda --> /sys/block/sda
/sys/block/sda/holders/dm-0 --> /sys/block/dm-0
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-table.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 84f4594afd3c..76610a6ac01c 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -350,7 +350,7 @@ static struct dm_dev *find_device(struct list_head *l, dev_t dev) /* * Open a device so we can use it as a map destination. */ -static int open_dev(struct dm_dev *d, dev_t dev) +static int open_dev(struct dm_dev *d, dev_t dev, struct mapped_device *md) { static char *_claim_ptr = "I belong to device-mapper"; struct block_device *bdev; @@ -362,7 +362,7 @@ static int open_dev(struct dm_dev *d, dev_t dev) bdev = open_by_devnum(dev, d->mode); if (IS_ERR(bdev)) return PTR_ERR(bdev); - r = bd_claim(bdev, _claim_ptr); + r = bd_claim_by_disk(bdev, _claim_ptr, dm_disk(md)); if (r) blkdev_put(bdev); else @@ -373,12 +373,12 @@ static int open_dev(struct dm_dev *d, dev_t dev) /* * Close a device that we've been using. */ -static void close_dev(struct dm_dev *d) +static void close_dev(struct dm_dev *d, struct mapped_device *md) { if (!d->bdev) return; - bd_release(d->bdev); + bd_release_from_disk(d->bdev, dm_disk(md)); blkdev_put(d->bdev); d->bdev = NULL; } @@ -399,7 +399,7 @@ static int check_device_area(struct dm_dev *dd, sector_t start, sector_t len) * careful to leave things as they were if we fail to reopen the * device. */ -static int upgrade_mode(struct dm_dev *dd, int new_mode) +static int upgrade_mode(struct dm_dev *dd, int new_mode, struct mapped_device *md) { int r; struct dm_dev dd_copy; @@ -409,9 +409,9 @@ static int upgrade_mode(struct dm_dev *dd, int new_mode) dd->mode |= new_mode; dd->bdev = NULL; - r = open_dev(dd, dev); + r = open_dev(dd, dev, md); if (!r) - close_dev(&dd_copy); + close_dev(&dd_copy, md); else *dd = dd_copy; @@ -453,7 +453,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti, dd->mode = mode; dd->bdev = NULL; - if ((r = open_dev(dd, dev))) { + if ((r = open_dev(dd, dev, t->md))) { kfree(dd); return r; } @@ -464,7 +464,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti, list_add(&dd->list, &t->devices); } else if (dd->mode != (mode | dd->mode)) { - r = upgrade_mode(dd, mode); + r = upgrade_mode(dd, mode, t->md); if (r) return r; } @@ -541,7 +541,7 @@ int dm_get_device(struct dm_target *ti, const char *path, sector_t start, void dm_put_device(struct dm_target *ti, struct dm_dev *dd) { if (atomic_dec_and_test(&dd->count)) { - close_dev(dd); + close_dev(dd, ti->table->md); list_del(&dd->list); kfree(dd); } |