aboutsummaryrefslogtreecommitdiffstats
path: root/fs/partitions/check.c
diff options
context:
space:
mode:
authorJens Axboe <jaxboe@fusionio.com>2010-11-16 04:09:42 -0500
committerJens Axboe <jaxboe@fusionio.com>2010-11-16 04:09:42 -0500
commita02056349cdea2252cd2b21643ebf025e83a29f2 (patch)
treeb7c889d6cbe8e7188d07d99a5c9da858c53a5b6c /fs/partitions/check.c
parent34db1d595ef6f183fbc1e42cda45a3dfa0035258 (diff)
parente53beacd23d9cb47590da6a7a7f6d417b941a994 (diff)
Merge branch 'v2.6.37-rc2' into for-2.6.38/core
Diffstat (limited to 'fs/partitions/check.c')
-rw-r--r--fs/partitions/check.c42
1 files changed, 29 insertions, 13 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 861ae84fcee5..12213f7ce7a2 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -361,6 +361,7 @@ static void part_release(struct device *dev)
361{ 361{
362 struct hd_struct *p = dev_to_part(dev); 362 struct hd_struct *p = dev_to_part(dev);
363 free_part_stats(p); 363 free_part_stats(p);
364 free_part_info(p);
364 kfree(p); 365 kfree(p);
365} 366}
366 367
@@ -410,7 +411,8 @@ static DEVICE_ATTR(whole_disk, S_IRUSR | S_IRGRP | S_IROTH,
410 whole_disk_show, NULL); 411 whole_disk_show, NULL);
411 412
412struct hd_struct *add_partition(struct gendisk *disk, int partno, 413struct hd_struct *add_partition(struct gendisk *disk, int partno,
413 sector_t start, sector_t len, int flags) 414 sector_t start, sector_t len, int flags,
415 struct partition_meta_info *info)
414{ 416{
415 struct hd_struct *p; 417 struct hd_struct *p;
416 dev_t devt = MKDEV(0, 0); 418 dev_t devt = MKDEV(0, 0);
@@ -447,6 +449,14 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
447 p->partno = partno; 449 p->partno = partno;
448 p->policy = get_disk_ro(disk); 450 p->policy = get_disk_ro(disk);
449 451
452 if (info) {
453 struct partition_meta_info *pinfo = alloc_part_info(disk);
454 if (!pinfo)
455 goto out_free_stats;
456 memcpy(pinfo, info, sizeof(*info));
457 p->info = pinfo;
458 }
459
450 dname = dev_name(ddev); 460 dname = dev_name(ddev);
451 if (isdigit(dname[strlen(dname) - 1])) 461 if (isdigit(dname[strlen(dname) - 1]))
452 dev_set_name(pdev, "%sp%d", dname, partno); 462 dev_set_name(pdev, "%sp%d", dname, partno);
@@ -460,7 +470,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
460 470
461 err = blk_alloc_devt(p, &devt); 471 err = blk_alloc_devt(p, &devt);
462 if (err) 472 if (err)
463 goto out_free_stats; 473 goto out_free_info;
464 pdev->devt = devt; 474 pdev->devt = devt;
465 475
466 /* delay uevent until 'holders' subdir is created */ 476 /* delay uevent until 'holders' subdir is created */
@@ -490,6 +500,8 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
490 500
491 return p; 501 return p;
492 502
503out_free_info:
504 free_part_info(p);
493out_free_stats: 505out_free_stats:
494 free_part_stats(p); 506 free_part_stats(p);
495out_free: 507out_free:
@@ -522,14 +534,14 @@ void register_disk(struct gendisk *disk)
522 534
523 if (device_add(ddev)) 535 if (device_add(ddev))
524 return; 536 return;
525#ifndef CONFIG_SYSFS_DEPRECATED 537 if (!sysfs_deprecated) {
526 err = sysfs_create_link(block_depr, &ddev->kobj, 538 err = sysfs_create_link(block_depr, &ddev->kobj,
527 kobject_name(&ddev->kobj)); 539 kobject_name(&ddev->kobj));
528 if (err) { 540 if (err) {
529 device_del(ddev); 541 device_del(ddev);
530 return; 542 return;
543 }
531 } 544 }
532#endif
533 disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj); 545 disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
534 disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj); 546 disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
535 547
@@ -651,6 +663,7 @@ rescan:
651 /* add partitions */ 663 /* add partitions */
652 for (p = 1; p < state->limit; p++) { 664 for (p = 1; p < state->limit; p++) {
653 sector_t size, from; 665 sector_t size, from;
666 struct partition_meta_info *info = NULL;
654 667
655 size = state->parts[p].size; 668 size = state->parts[p].size;
656 if (!size) 669 if (!size)
@@ -684,8 +697,12 @@ rescan:
684 size = get_capacity(disk) - from; 697 size = get_capacity(disk) - from;
685 } 698 }
686 } 699 }
700
701 if (state->parts[p].has_info)
702 info = &state->parts[p].info;
687 part = add_partition(disk, p, from, size, 703 part = add_partition(disk, p, from, size,
688 state->parts[p].flags); 704 state->parts[p].flags,
705 &state->parts[p].info);
689 if (IS_ERR(part)) { 706 if (IS_ERR(part)) {
690 printk(KERN_ERR " %s: p%d could not be added: %ld\n", 707 printk(KERN_ERR " %s: p%d could not be added: %ld\n",
691 disk->disk_name, p, -PTR_ERR(part)); 708 disk->disk_name, p, -PTR_ERR(part));
@@ -746,8 +763,7 @@ void del_gendisk(struct gendisk *disk)
746 kobject_put(disk->part0.holder_dir); 763 kobject_put(disk->part0.holder_dir);
747 kobject_put(disk->slave_dir); 764 kobject_put(disk->slave_dir);
748 disk->driverfs_dev = NULL; 765 disk->driverfs_dev = NULL;
749#ifndef CONFIG_SYSFS_DEPRECATED 766 if (!sysfs_deprecated)
750 sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk))); 767 sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
751#endif
752 device_del(disk_to_dev(disk)); 768 device_del(disk_to_dev(disk));
753} 769}