mirror of https://gitee.com/openkylin/linux.git
This pull request includes the following UBI/UBIFS changes:
* Minor fixes for UBI and UBIFS -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABAgAGBQJVi9DTAAoJEPmeIjfg4UaaOlAP/AtZqcxpCHlKpbZUz7z1MmCb MP9AbowP0CSXrMYSA7GrBROw+bfTM7aZrhWqhhoJxAyBbb9LGldjW9xZmUqUvS5e LZjAO8sWqxEbfVBqnpTgA2AiSN37I3+epYqgDFNlNCtxPYxkEXpXVoLUSdrAUKw8 24EjPe0tq1JKLmjh3XJQZJnmCW+7xPKRUj7KiwPZzombIoNXFA9z4PCOLLlnDx1X TRasArrncarslQaHQerRoZUKC/hoIGZMipv94pNovgO8HAcZ/N19ef1Fc4iG5zvS XUMerUyKMTVfR6LFjueMjRpEMOmDb4AifWeDKY00xqY4RCnkIcAAqVRBGWQep6Y4 PxCwttNktykWj/LygPCsQk6gd0IxdVGsFra4DpxhCCWXaUw2RJCRg0a4mQFOqojO tmCVQVYgd4Ob2DDnxmS7Z8IvjIWzsSkgatF+Dde2feeHUwEuM9NoudHg704+A30x 3fNwIFhuREhOymxGpBaprfaKh7khF88CcrGjiEOvw/DK0QfwlVoUVLqjkNVaLZXC nrwNATdheq2gMV2Mdydy/uo5NpUxeblSrlnuknKQSTmH5m2/U9F9lJ/v3Sv7ShjB gWqyNIoxJBKTSbsGkFP5bzWmxwsQ4HlPTcAmJhoUDK7SLeXThhgRwB4o2zlriYfS D7ZVxRMY5JCNxomIzD0X =xU0H -----END PGP SIGNATURE----- Merge tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs Pull UBI/UBIFS updates from Richard Weinberger: "Minor fixes for UBI and UBIFS" * tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs: UBI: Remove unnecessary `\' UBI: Use static class and attribute groups UBI: add a helper function for updatting on-flash layout volumes UBI: Fastmap: Do not add vol if it already exists UBI: Init vol->reserved_pebs by assignment UBI: Fastmap: Rename variables to make them meaningful UBI: Fastmap: Remove unnecessary `\' UBI: Fastmap: Use max() to get the larger value ubifs: fix to check error code of register_shrinker UBI: block: Dynamically allocate minor numbers
This commit is contained in:
Linus Torvalds
commit
cc8a0a9439
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@ -48,6 +48,7 @@
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#include <linux/blk-mq.h>
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#include <linux/hdreg.h>
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#include <linux/scatterlist.h>
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#include <linux/idr.h>
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#include <asm/div64.h>
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#include "ubi-media.h"
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@ -353,6 +354,8 @@ static struct blk_mq_ops ubiblock_mq_ops = {
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.map_queue = blk_mq_map_queue,
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};
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static DEFINE_IDR(ubiblock_minor_idr);
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int ubiblock_create(struct ubi_volume_info *vi)
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{
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struct ubiblock *dev;
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@ -390,7 +393,13 @@ int ubiblock_create(struct ubi_volume_info *vi)
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gd->fops = &ubiblock_ops;
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gd->major = ubiblock_major;
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gd->first_minor = dev->ubi_num * UBI_MAX_VOLUMES + dev->vol_id;
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gd->first_minor = idr_alloc(&ubiblock_minor_idr, dev, 0, 0, GFP_KERNEL);
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if (gd->first_minor < 0) {
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dev_err(disk_to_dev(gd),
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"block: dynamic minor allocation failed");
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ret = -ENODEV;
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goto out_put_disk;
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}
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gd->private_data = dev;
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sprintf(gd->disk_name, "ubiblock%d_%d", dev->ubi_num, dev->vol_id);
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set_capacity(gd, disk_capacity);
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@ -407,7 +416,7 @@ int ubiblock_create(struct ubi_volume_info *vi)
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ret = blk_mq_alloc_tag_set(&dev->tag_set);
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if (ret) {
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dev_err(disk_to_dev(dev->gd), "blk_mq_alloc_tag_set failed");
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goto out_put_disk;
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goto out_remove_minor;
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}
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dev->rq = blk_mq_init_queue(&dev->tag_set);
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@ -445,6 +454,8 @@ int ubiblock_create(struct ubi_volume_info *vi)
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blk_cleanup_queue(dev->rq);
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out_free_tags:
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blk_mq_free_tag_set(&dev->tag_set);
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out_remove_minor:
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idr_remove(&ubiblock_minor_idr, gd->first_minor);
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out_put_disk:
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put_disk(dev->gd);
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out_free_dev:
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@ -463,6 +474,7 @@ static void ubiblock_cleanup(struct ubiblock *dev)
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blk_cleanup_queue(dev->rq);
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blk_mq_free_tag_set(&dev->tag_set);
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dev_info(disk_to_dev(dev->gd), "released");
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idr_remove(&ubiblock_minor_idr, dev->gd->first_minor);
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put_disk(dev->gd);
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}
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@ -83,8 +83,6 @@ static struct mtd_dev_param __initdata mtd_dev_param[UBI_MAX_DEVICES];
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static bool fm_autoconvert;
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static bool fm_debug;
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#endif
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/* Root UBI "class" object (corresponds to '/<sysfs>/class/ubi/') */
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struct class *ubi_class;
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/* Slab cache for wear-leveling entries */
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struct kmem_cache *ubi_wl_entry_slab;
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@ -113,8 +111,17 @@ static ssize_t ubi_version_show(struct class *class,
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}
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/* UBI version attribute ('/<sysfs>/class/ubi/version') */
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static struct class_attribute ubi_version =
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__ATTR(version, S_IRUGO, ubi_version_show, NULL);
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static struct class_attribute ubi_class_attrs[] = {
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__ATTR(version, S_IRUGO, ubi_version_show, NULL),
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__ATTR_NULL
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};
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/* Root UBI "class" object (corresponds to '/<sysfs>/class/ubi/') */
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struct class ubi_class = {
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.name = UBI_NAME_STR,
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.owner = THIS_MODULE,
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.class_attrs = ubi_class_attrs,
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};
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static ssize_t dev_attribute_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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@ -385,6 +392,22 @@ static ssize_t dev_attribute_show(struct device *dev,
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return ret;
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}
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static struct attribute *ubi_dev_attrs[] = {
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&dev_eraseblock_size.attr,
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&dev_avail_eraseblocks.attr,
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&dev_total_eraseblocks.attr,
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&dev_volumes_count.attr,
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&dev_max_ec.attr,
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&dev_reserved_for_bad.attr,
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&dev_bad_peb_count.attr,
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&dev_max_vol_count.attr,
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&dev_min_io_size.attr,
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&dev_bgt_enabled.attr,
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&dev_mtd_num.attr,
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NULL
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};
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ATTRIBUTE_GROUPS(ubi_dev);
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static void dev_release(struct device *dev)
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{
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struct ubi_device *ubi = container_of(dev, struct ubi_device, dev);
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@ -407,45 +430,15 @@ static int ubi_sysfs_init(struct ubi_device *ubi, int *ref)
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ubi->dev.release = dev_release;
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ubi->dev.devt = ubi->cdev.dev;
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ubi->dev.class = ubi_class;
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ubi->dev.class = &ubi_class;
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ubi->dev.groups = ubi_dev_groups;
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dev_set_name(&ubi->dev, UBI_NAME_STR"%d", ubi->ubi_num);
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err = device_register(&ubi->dev);
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if (err)
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return err;
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*ref = 1;
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err = device_create_file(&ubi->dev, &dev_eraseblock_size);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_avail_eraseblocks);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_total_eraseblocks);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_volumes_count);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_max_ec);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_reserved_for_bad);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_bad_peb_count);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_max_vol_count);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_min_io_size);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_bgt_enabled);
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if (err)
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return err;
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err = device_create_file(&ubi->dev, &dev_mtd_num);
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return err;
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return 0;
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}
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/**
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@ -454,17 +447,6 @@ static int ubi_sysfs_init(struct ubi_device *ubi, int *ref)
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*/
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static void ubi_sysfs_close(struct ubi_device *ubi)
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{
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device_remove_file(&ubi->dev, &dev_mtd_num);
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device_remove_file(&ubi->dev, &dev_bgt_enabled);
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device_remove_file(&ubi->dev, &dev_min_io_size);
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device_remove_file(&ubi->dev, &dev_max_vol_count);
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device_remove_file(&ubi->dev, &dev_bad_peb_count);
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device_remove_file(&ubi->dev, &dev_reserved_for_bad);
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device_remove_file(&ubi->dev, &dev_max_ec);
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device_remove_file(&ubi->dev, &dev_volumes_count);
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device_remove_file(&ubi->dev, &dev_total_eraseblocks);
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device_remove_file(&ubi->dev, &dev_avail_eraseblocks);
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device_remove_file(&ubi->dev, &dev_eraseblock_size);
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device_unregister(&ubi->dev);
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}
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@ -947,8 +929,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
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*/
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ubi->fm_pool.max_size = min(((int)mtd_div_by_eb(ubi->mtd->size,
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ubi->mtd) / 100) * 5, UBI_FM_MAX_POOL_SIZE);
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if (ubi->fm_pool.max_size < UBI_FM_MIN_POOL_SIZE)
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ubi->fm_pool.max_size = UBI_FM_MIN_POOL_SIZE;
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ubi->fm_pool.max_size = max(ubi->fm_pool.max_size,
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UBI_FM_MIN_POOL_SIZE);
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ubi->fm_wl_pool.max_size = ubi->fm_pool.max_size / 2;
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ubi->fm_disabled = !fm_autoconvert;
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@ -1233,23 +1215,14 @@ static int __init ubi_init(void)
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}
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/* Create base sysfs directory and sysfs files */
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ubi_class = class_create(THIS_MODULE, UBI_NAME_STR);
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if (IS_ERR(ubi_class)) {
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err = PTR_ERR(ubi_class);
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pr_err("UBI error: cannot create UBI class");
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goto out;
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}
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err = class_create_file(ubi_class, &ubi_version);
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if (err) {
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pr_err("UBI error: cannot create sysfs file");
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goto out_class;
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}
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err = class_register(&ubi_class);
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if (err < 0)
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return err;
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err = misc_register(&ubi_ctrl_cdev);
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if (err) {
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pr_err("UBI error: cannot register device");
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goto out_version;
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goto out;
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}
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ubi_wl_entry_slab = kmem_cache_create("ubi_wl_entry_slab",
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@ -1333,11 +1306,8 @@ static int __init ubi_init(void)
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kmem_cache_destroy(ubi_wl_entry_slab);
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out_dev_unreg:
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misc_deregister(&ubi_ctrl_cdev);
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out_version:
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class_remove_file(ubi_class, &ubi_version);
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out_class:
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class_destroy(ubi_class);
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out:
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class_unregister(&ubi_class);
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pr_err("UBI error: cannot initialize UBI, error %d", err);
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return err;
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}
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|
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@ -1358,8 +1328,7 @@ static void __exit ubi_exit(void)
|
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ubi_debugfs_exit();
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kmem_cache_destroy(ubi_wl_entry_slab);
|
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misc_deregister(&ubi_ctrl_cdev);
|
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class_remove_file(ubi_class, &ubi_version);
|
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class_destroy(ubi_class);
|
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class_unregister(&ubi_class);
|
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}
|
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module_exit(ubi_exit);
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|
||||
|
|
|
|||
|
|
@ -88,13 +88,13 @@ size_t ubi_calc_fm_size(struct ubi_device *ubi)
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{
|
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size_t size;
|
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|
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size = sizeof(struct ubi_fm_sb) + \
|
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sizeof(struct ubi_fm_hdr) + \
|
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sizeof(struct ubi_fm_scan_pool) + \
|
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sizeof(struct ubi_fm_scan_pool) + \
|
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(ubi->peb_count * sizeof(struct ubi_fm_ec)) + \
|
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(sizeof(struct ubi_fm_eba) + \
|
||||
(ubi->peb_count * sizeof(__be32))) + \
|
||||
size = sizeof(struct ubi_fm_sb) +
|
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sizeof(struct ubi_fm_hdr) +
|
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sizeof(struct ubi_fm_scan_pool) +
|
||||
sizeof(struct ubi_fm_scan_pool) +
|
||||
(ubi->peb_count * sizeof(struct ubi_fm_ec)) +
|
||||
(sizeof(struct ubi_fm_eba) +
|
||||
(ubi->peb_count * sizeof(__be32))) +
|
||||
sizeof(struct ubi_fm_volhdr) * UBI_MAX_VOLUMES;
|
||||
return roundup(size, ubi->leb_size);
|
||||
}
|
||||
|
|
@ -192,8 +192,10 @@ static struct ubi_ainf_volume *add_vol(struct ubi_attach_info *ai, int vol_id,
|
|||
|
||||
if (vol_id > av->vol_id)
|
||||
p = &(*p)->rb_left;
|
||||
else
|
||||
else if (vol_id < av->vol_id)
|
||||
p = &(*p)->rb_right;
|
||||
else
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
av = kmalloc(sizeof(struct ubi_ainf_volume), GFP_KERNEL);
|
||||
|
|
@ -314,7 +316,7 @@ static int update_vol(struct ubi_device *ubi, struct ubi_attach_info *ai,
|
|||
list_add_tail(&victim->u.list, &ai->erase);
|
||||
|
||||
if (av->highest_lnum == be32_to_cpu(new_vh->lnum))
|
||||
av->last_data_size = \
|
||||
av->last_data_size =
|
||||
be32_to_cpu(new_vh->data_size);
|
||||
|
||||
dbg_bld("vol %i: AEB %i's PEB %i is the newer",
|
||||
|
|
@ -601,7 +603,7 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
|
|||
struct ubi_ainf_peb *aeb, *tmp_aeb, *_tmp_aeb;
|
||||
struct ubi_fm_sb *fmsb;
|
||||
struct ubi_fm_hdr *fmhdr;
|
||||
struct ubi_fm_scan_pool *fmpl1, *fmpl2;
|
||||
struct ubi_fm_scan_pool *fmpl, *fmpl_wl;
|
||||
struct ubi_fm_ec *fmec;
|
||||
struct ubi_fm_volhdr *fmvhdr;
|
||||
struct ubi_fm_eba *fm_eba;
|
||||
|
|
@ -631,30 +633,30 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
|
|||
goto fail_bad;
|
||||
}
|
||||
|
||||
fmpl1 = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl1);
|
||||
fmpl = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl);
|
||||
if (fm_pos >= fm_size)
|
||||
goto fail_bad;
|
||||
if (be32_to_cpu(fmpl1->magic) != UBI_FM_POOL_MAGIC) {
|
||||
if (be32_to_cpu(fmpl->magic) != UBI_FM_POOL_MAGIC) {
|
||||
ubi_err(ubi, "bad fastmap pool magic: 0x%x, expected: 0x%x",
|
||||
be32_to_cpu(fmpl1->magic), UBI_FM_POOL_MAGIC);
|
||||
be32_to_cpu(fmpl->magic), UBI_FM_POOL_MAGIC);
|
||||
goto fail_bad;
|
||||
}
|
||||
|
||||
fmpl2 = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl2);
|
||||
fmpl_wl = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl_wl);
|
||||
if (fm_pos >= fm_size)
|
||||
goto fail_bad;
|
||||
if (be32_to_cpu(fmpl2->magic) != UBI_FM_POOL_MAGIC) {
|
||||
ubi_err(ubi, "bad fastmap pool magic: 0x%x, expected: 0x%x",
|
||||
be32_to_cpu(fmpl2->magic), UBI_FM_POOL_MAGIC);
|
||||
if (be32_to_cpu(fmpl_wl->magic) != UBI_FM_POOL_MAGIC) {
|
||||
ubi_err(ubi, "bad fastmap WL pool magic: 0x%x, expected: 0x%x",
|
||||
be32_to_cpu(fmpl_wl->magic), UBI_FM_POOL_MAGIC);
|
||||
goto fail_bad;
|
||||
}
|
||||
|
||||
pool_size = be16_to_cpu(fmpl1->size);
|
||||
wl_pool_size = be16_to_cpu(fmpl2->size);
|
||||
fm->max_pool_size = be16_to_cpu(fmpl1->max_size);
|
||||
fm->max_wl_pool_size = be16_to_cpu(fmpl2->max_size);
|
||||
pool_size = be16_to_cpu(fmpl->size);
|
||||
wl_pool_size = be16_to_cpu(fmpl_wl->size);
|
||||
fm->max_pool_size = be16_to_cpu(fmpl->max_size);
|
||||
fm->max_wl_pool_size = be16_to_cpu(fmpl_wl->max_size);
|
||||
|
||||
if (pool_size > UBI_FM_MAX_POOL_SIZE || pool_size < 0) {
|
||||
ubi_err(ubi, "bad pool size: %i", pool_size);
|
||||
|
|
@ -748,6 +750,11 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
|
|||
|
||||
if (!av)
|
||||
goto fail_bad;
|
||||
if (PTR_ERR(av) == -EINVAL) {
|
||||
ubi_err(ubi, "volume (ID %i) already exists",
|
||||
fmvhdr->vol_id);
|
||||
goto fail_bad;
|
||||
}
|
||||
|
||||
ai->vols_found++;
|
||||
if (ai->highest_vol_id < be32_to_cpu(fmvhdr->vol_id))
|
||||
|
|
@ -796,11 +803,11 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
|
|||
}
|
||||
}
|
||||
|
||||
ret = scan_pool(ubi, ai, fmpl1->pebs, pool_size, &max_sqnum, &free);
|
||||
ret = scan_pool(ubi, ai, fmpl->pebs, pool_size, &max_sqnum, &free);
|
||||
if (ret)
|
||||
goto fail;
|
||||
|
||||
ret = scan_pool(ubi, ai, fmpl2->pebs, wl_pool_size, &max_sqnum, &free);
|
||||
ret = scan_pool(ubi, ai, fmpl_wl->pebs, wl_pool_size, &max_sqnum, &free);
|
||||
if (ret)
|
||||
goto fail;
|
||||
|
||||
|
|
@ -1083,7 +1090,7 @@ static int ubi_write_fastmap(struct ubi_device *ubi,
|
|||
void *fm_raw;
|
||||
struct ubi_fm_sb *fmsb;
|
||||
struct ubi_fm_hdr *fmh;
|
||||
struct ubi_fm_scan_pool *fmpl1, *fmpl2;
|
||||
struct ubi_fm_scan_pool *fmpl, *fmpl_wl;
|
||||
struct ubi_fm_ec *fec;
|
||||
struct ubi_fm_volhdr *fvh;
|
||||
struct ubi_fm_eba *feba;
|
||||
|
|
@ -1141,25 +1148,25 @@ static int ubi_write_fastmap(struct ubi_device *ubi,
|
|||
erase_peb_count = 0;
|
||||
vol_count = 0;
|
||||
|
||||
fmpl1 = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl1);
|
||||
fmpl1->magic = cpu_to_be32(UBI_FM_POOL_MAGIC);
|
||||
fmpl1->size = cpu_to_be16(ubi->fm_pool.size);
|
||||
fmpl1->max_size = cpu_to_be16(ubi->fm_pool.max_size);
|
||||
fmpl = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl);
|
||||
fmpl->magic = cpu_to_be32(UBI_FM_POOL_MAGIC);
|
||||
fmpl->size = cpu_to_be16(ubi->fm_pool.size);
|
||||
fmpl->max_size = cpu_to_be16(ubi->fm_pool.max_size);
|
||||
|
||||
for (i = 0; i < ubi->fm_pool.size; i++) {
|
||||
fmpl1->pebs[i] = cpu_to_be32(ubi->fm_pool.pebs[i]);
|
||||
fmpl->pebs[i] = cpu_to_be32(ubi->fm_pool.pebs[i]);
|
||||
set_seen(ubi, ubi->fm_pool.pebs[i], seen_pebs);
|
||||
}
|
||||
|
||||
fmpl2 = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl2);
|
||||
fmpl2->magic = cpu_to_be32(UBI_FM_POOL_MAGIC);
|
||||
fmpl2->size = cpu_to_be16(ubi->fm_wl_pool.size);
|
||||
fmpl2->max_size = cpu_to_be16(ubi->fm_wl_pool.max_size);
|
||||
fmpl_wl = (struct ubi_fm_scan_pool *)(fm_raw + fm_pos);
|
||||
fm_pos += sizeof(*fmpl_wl);
|
||||
fmpl_wl->magic = cpu_to_be32(UBI_FM_POOL_MAGIC);
|
||||
fmpl_wl->size = cpu_to_be16(ubi->fm_wl_pool.size);
|
||||
fmpl_wl->max_size = cpu_to_be16(ubi->fm_wl_pool.max_size);
|
||||
|
||||
for (i = 0; i < ubi->fm_wl_pool.size; i++) {
|
||||
fmpl2->pebs[i] = cpu_to_be32(ubi->fm_wl_pool.pebs[i]);
|
||||
fmpl_wl->pebs[i] = cpu_to_be32(ubi->fm_wl_pool.pebs[i]);
|
||||
set_seen(ubi, ubi->fm_wl_pool.pebs[i], seen_pebs);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -775,7 +775,7 @@ extern struct kmem_cache *ubi_wl_entry_slab;
|
|||
extern const struct file_operations ubi_ctrl_cdev_operations;
|
||||
extern const struct file_operations ubi_cdev_operations;
|
||||
extern const struct file_operations ubi_vol_cdev_operations;
|
||||
extern struct class *ubi_class;
|
||||
extern struct class ubi_class;
|
||||
extern struct mutex ubi_devices_mutex;
|
||||
extern struct blocking_notifier_head ubi_notifiers;
|
||||
|
||||
|
|
|
|||
|
|
@ -120,6 +120,19 @@ static ssize_t vol_attribute_show(struct device *dev,
|
|||
return ret;
|
||||
}
|
||||
|
||||
static struct attribute *volume_dev_attrs[] = {
|
||||
&attr_vol_reserved_ebs.attr,
|
||||
&attr_vol_type.attr,
|
||||
&attr_vol_name.attr,
|
||||
&attr_vol_corrupted.attr,
|
||||
&attr_vol_alignment.attr,
|
||||
&attr_vol_usable_eb_size.attr,
|
||||
&attr_vol_data_bytes.attr,
|
||||
&attr_vol_upd_marker.attr,
|
||||
NULL
|
||||
};
|
||||
ATTRIBUTE_GROUPS(volume_dev);
|
||||
|
||||
/* Release method for volume devices */
|
||||
static void vol_release(struct device *dev)
|
||||
{
|
||||
|
|
@ -129,64 +142,6 @@ static void vol_release(struct device *dev)
|
|||
kfree(vol);
|
||||
}
|
||||
|
||||
/**
|
||||
* volume_sysfs_init - initialize sysfs for new volume.
|
||||
* @ubi: UBI device description object
|
||||
* @vol: volume description object
|
||||
*
|
||||
* This function returns zero in case of success and a negative error code in
|
||||
* case of failure.
|
||||
*
|
||||
* Note, this function does not free allocated resources in case of failure -
|
||||
* the caller does it. This is because this would cause release() here and the
|
||||
* caller would oops.
|
||||
*/
|
||||
static int volume_sysfs_init(struct ubi_device *ubi, struct ubi_volume *vol)
|
||||
{
|
||||
int err;
|
||||
|
||||
err = device_create_file(&vol->dev, &attr_vol_reserved_ebs);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_type);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_name);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_corrupted);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_alignment);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_usable_eb_size);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_data_bytes);
|
||||
if (err)
|
||||
return err;
|
||||
err = device_create_file(&vol->dev, &attr_vol_upd_marker);
|
||||
return err;
|
||||
}
|
||||
|
||||
/**
|
||||
* volume_sysfs_close - close sysfs for a volume.
|
||||
* @vol: volume description object
|
||||
*/
|
||||
static void volume_sysfs_close(struct ubi_volume *vol)
|
||||
{
|
||||
device_remove_file(&vol->dev, &attr_vol_upd_marker);
|
||||
device_remove_file(&vol->dev, &attr_vol_data_bytes);
|
||||
device_remove_file(&vol->dev, &attr_vol_usable_eb_size);
|
||||
device_remove_file(&vol->dev, &attr_vol_alignment);
|
||||
device_remove_file(&vol->dev, &attr_vol_corrupted);
|
||||
device_remove_file(&vol->dev, &attr_vol_name);
|
||||
device_remove_file(&vol->dev, &attr_vol_type);
|
||||
device_remove_file(&vol->dev, &attr_vol_reserved_ebs);
|
||||
device_unregister(&vol->dev);
|
||||
}
|
||||
|
||||
/**
|
||||
* ubi_create_volume - create volume.
|
||||
* @ubi: UBI device description object
|
||||
|
|
@ -253,8 +208,8 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
|
|||
|
||||
/* Calculate how many eraseblocks are requested */
|
||||
vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;
|
||||
vol->reserved_pebs += div_u64(req->bytes + vol->usable_leb_size - 1,
|
||||
vol->usable_leb_size);
|
||||
vol->reserved_pebs = div_u64(req->bytes + vol->usable_leb_size - 1,
|
||||
vol->usable_leb_size);
|
||||
|
||||
/* Reserve physical eraseblocks */
|
||||
if (vol->reserved_pebs > ubi->avail_pebs) {
|
||||
|
|
@ -323,7 +278,8 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
|
|||
vol->dev.release = vol_release;
|
||||
vol->dev.parent = &ubi->dev;
|
||||
vol->dev.devt = dev;
|
||||
vol->dev.class = ubi_class;
|
||||
vol->dev.class = &ubi_class;
|
||||
vol->dev.groups = volume_dev_groups;
|
||||
|
||||
dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);
|
||||
err = device_register(&vol->dev);
|
||||
|
|
@ -332,10 +288,6 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
|
|||
goto out_cdev;
|
||||
}
|
||||
|
||||
err = volume_sysfs_init(ubi, vol);
|
||||
if (err)
|
||||
goto out_sysfs;
|
||||
|
||||
/* Fill volume table record */
|
||||
memset(&vtbl_rec, 0, sizeof(struct ubi_vtbl_record));
|
||||
vtbl_rec.reserved_pebs = cpu_to_be32(vol->reserved_pebs);
|
||||
|
|
@ -372,7 +324,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
|
|||
*/
|
||||
do_free = 0;
|
||||
get_device(&vol->dev);
|
||||
volume_sysfs_close(vol);
|
||||
device_unregister(&vol->dev);
|
||||
out_cdev:
|
||||
cdev_del(&vol->cdev);
|
||||
out_mapping:
|
||||
|
|
@ -440,7 +392,7 @@ int ubi_remove_volume(struct ubi_volume_desc *desc, int no_vtbl)
|
|||
}
|
||||
|
||||
cdev_del(&vol->cdev);
|
||||
volume_sysfs_close(vol);
|
||||
device_unregister(&vol->dev);
|
||||
|
||||
spin_lock(&ubi->volumes_lock);
|
||||
ubi->rsvd_pebs -= reserved_pebs;
|
||||
|
|
@ -653,19 +605,13 @@ int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)
|
|||
vol->dev.release = vol_release;
|
||||
vol->dev.parent = &ubi->dev;
|
||||
vol->dev.devt = dev;
|
||||
vol->dev.class = ubi_class;
|
||||
vol->dev.class = &ubi_class;
|
||||
vol->dev.groups = volume_dev_groups;
|
||||
dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);
|
||||
err = device_register(&vol->dev);
|
||||
if (err)
|
||||
goto out_cdev;
|
||||
|
||||
err = volume_sysfs_init(ubi, vol);
|
||||
if (err) {
|
||||
cdev_del(&vol->cdev);
|
||||
volume_sysfs_close(vol);
|
||||
return err;
|
||||
}
|
||||
|
||||
self_check_volumes(ubi);
|
||||
return err;
|
||||
|
||||
|
|
@ -688,7 +634,7 @@ void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)
|
|||
|
||||
ubi->volumes[vol->vol_id] = NULL;
|
||||
cdev_del(&vol->cdev);
|
||||
volume_sysfs_close(vol);
|
||||
device_unregister(&vol->dev);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -69,6 +69,26 @@ static void self_vtbl_check(const struct ubi_device *ubi);
|
|||
/* Empty volume table record */
|
||||
static struct ubi_vtbl_record empty_vtbl_record;
|
||||
|
||||
/**
|
||||
* ubi_update_layout_vol - helper for updatting layout volumes on flash
|
||||
* @ubi: UBI device description object
|
||||
*/
|
||||
static int ubi_update_layout_vol(struct ubi_device *ubi)
|
||||
{
|
||||
struct ubi_volume *layout_vol;
|
||||
int i, err;
|
||||
|
||||
layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
|
||||
for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) {
|
||||
err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl,
|
||||
ubi->vtbl_size);
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* ubi_change_vtbl_record - change volume table record.
|
||||
* @ubi: UBI device description object
|
||||
|
|
@ -83,12 +103,10 @@ static struct ubi_vtbl_record empty_vtbl_record;
|
|||
int ubi_change_vtbl_record(struct ubi_device *ubi, int idx,
|
||||
struct ubi_vtbl_record *vtbl_rec)
|
||||
{
|
||||
int i, err;
|
||||
int err;
|
||||
uint32_t crc;
|
||||
struct ubi_volume *layout_vol;
|
||||
|
||||
ubi_assert(idx >= 0 && idx < ubi->vtbl_slots);
|
||||
layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
|
||||
|
||||
if (!vtbl_rec)
|
||||
vtbl_rec = &empty_vtbl_record;
|
||||
|
|
@ -98,15 +116,10 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx,
|
|||
}
|
||||
|
||||
memcpy(&ubi->vtbl[idx], vtbl_rec, sizeof(struct ubi_vtbl_record));
|
||||
for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) {
|
||||
err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl,
|
||||
ubi->vtbl_size);
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
err = ubi_update_layout_vol(ubi);
|
||||
|
||||
self_vtbl_check(ubi);
|
||||
return 0;
|
||||
return err ? err : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -121,9 +134,7 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx,
|
|||
int ubi_vtbl_rename_volumes(struct ubi_device *ubi,
|
||||
struct list_head *rename_list)
|
||||
{
|
||||
int i, err;
|
||||
struct ubi_rename_entry *re;
|
||||
struct ubi_volume *layout_vol;
|
||||
|
||||
list_for_each_entry(re, rename_list, list) {
|
||||
uint32_t crc;
|
||||
|
|
@ -145,15 +156,7 @@ int ubi_vtbl_rename_volumes(struct ubi_device *ubi,
|
|||
vtbl_rec->crc = cpu_to_be32(crc);
|
||||
}
|
||||
|
||||
layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
|
||||
for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) {
|
||||
err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl,
|
||||
ubi->vtbl_size);
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return ubi_update_layout_vol(ubi);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -1581,7 +1581,7 @@ int ubi_wl_init(struct ubi_device *ubi, struct ubi_attach_info *ai)
|
|||
dbg_wl("found %i PEBs", found_pebs);
|
||||
|
||||
if (ubi->fm) {
|
||||
ubi_assert(ubi->good_peb_count == \
|
||||
ubi_assert(ubi->good_peb_count ==
|
||||
found_pebs + ubi->fm->used_blocks);
|
||||
|
||||
for (i = 0; i < ubi->fm->used_blocks; i++) {
|
||||
|
|
|
|||
|
|
@ -2246,7 +2246,9 @@ static int __init ubifs_init(void)
|
|||
if (!ubifs_inode_slab)
|
||||
return -ENOMEM;
|
||||
|
||||
register_shrinker(&ubifs_shrinker_info);
|
||||
err = register_shrinker(&ubifs_shrinker_info);
|
||||
if (err)
|
||||
goto out_slab;
|
||||
|
||||
err = ubifs_compressors_init();
|
||||
if (err)
|
||||
|
|
@ -2270,6 +2272,7 @@ static int __init ubifs_init(void)
|
|||
ubifs_compressors_exit();
|
||||
out_shrinker:
|
||||
unregister_shrinker(&ubifs_shrinker_info);
|
||||
out_slab:
|
||||
kmem_cache_destroy(ubifs_inode_slab);
|
||||
return err;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue