From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/mtd/ubi/vmt.c | 98 ++++++++++---------------------------------- 1 file changed, 22 insertions(+), 76 deletions(-) (limited to 'kernel/drivers/mtd/ubi/vmt.c') diff --git a/kernel/drivers/mtd/ubi/vmt.c b/kernel/drivers/mtd/ubi/vmt.c index ff4d97848..1ae17bb9b 100644 --- a/kernel/drivers/mtd/ubi/vmt.c +++ b/kernel/drivers/mtd/ubi/vmt.c @@ -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 @@ out_sysfs: */ 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); } /** -- cgit 1.2.3-korg