From 1ba43816af921219d596c462baa7674ff0228229 Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Tue, 10 Mar 2015 06:38:33 +0800 Subject: Btrfs: sysfs btrfs_kobj_add_device() pass fs_devices instead of fs_info btrfs_kobj_add_device() does not need fs_info any more. Signed-off-by: Anand Jain Signed-off-by: David Sterba --- fs/btrfs/dev-replace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/btrfs/dev-replace.c') diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 0573848c73337..72c03adb6562c 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -584,7 +584,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, /* replace the sysfs entry */ btrfs_kobj_rm_device(fs_info, src_device); - btrfs_kobj_add_device(fs_info, tgt_device); + btrfs_kobj_add_device(fs_info->fs_devices, tgt_device); btrfs_rm_dev_replace_free_srcdev(fs_info, src_device); /* write back the superblocks */ -- cgit v1.2.3 From 6c14a1641bfaa213bb3c5bcb7f4d8cde234ada70 Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Tue, 10 Mar 2015 06:38:34 +0800 Subject: Btrfs: sysfs btrfs_kobj_rm_device() pass fs_devices instead of fs_info since btrfs_kobj_rm_device() does nothing with fs_info Signed-off-by: Anand Jain Signed-off-by: David Sterba --- fs/btrfs/dev-replace.c | 2 +- fs/btrfs/sysfs.c | 12 ++++++------ fs/btrfs/sysfs.h | 2 +- fs/btrfs/volumes.c | 4 ++-- 4 files changed, 10 insertions(+), 10 deletions(-) (limited to 'fs/btrfs/dev-replace.c') diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 72c03adb6562c..f982ef303f1c3 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -583,7 +583,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, mutex_unlock(&uuid_mutex); /* replace the sysfs entry */ - btrfs_kobj_rm_device(fs_info, src_device); + btrfs_kobj_rm_device(fs_info->fs_devices, src_device); btrfs_kobj_add_device(fs_info->fs_devices, tgt_device); btrfs_rm_dev_replace_free_srcdev(fs_info, src_device); diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 82e18f5329583..0a5d1eebc27ea 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -555,7 +555,7 @@ void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info) addrm_unknown_feature_attrs(fs_info, false); sysfs_remove_group(&fs_info->fs_devices->super_kobj, &btrfs_feature_attr_group); sysfs_remove_files(&fs_info->fs_devices->super_kobj, btrfs_attrs); - btrfs_kobj_rm_device(fs_info, NULL); + btrfs_kobj_rm_device(fs_info->fs_devices, NULL); btrfs_sysfs_remove_fsid(fs_info->fs_devices); } @@ -636,20 +636,20 @@ static void init_feature_attrs(void) /* when one_device is NULL, it removes all device links */ -int btrfs_kobj_rm_device(struct btrfs_fs_info *fs_info, +int btrfs_kobj_rm_device(struct btrfs_fs_devices *fs_devices, struct btrfs_device *one_device) { struct hd_struct *disk; struct kobject *disk_kobj; - if (!fs_info->fs_devices->device_dir_kobj) + if (!fs_devices->device_dir_kobj) return -EINVAL; if (one_device && one_device->bdev) { disk = one_device->bdev->bd_part; disk_kobj = &part_to_dev(disk)->kobj; - sysfs_remove_link(fs_info->fs_devices->device_dir_kobj, + sysfs_remove_link(fs_devices->device_dir_kobj, disk_kobj->name); } @@ -657,13 +657,13 @@ int btrfs_kobj_rm_device(struct btrfs_fs_info *fs_info, return 0; list_for_each_entry(one_device, - &fs_info->fs_devices->devices, dev_list) { + &fs_devices->devices, dev_list) { if (!one_device->bdev) continue; disk = one_device->bdev->bd_part; disk_kobj = &part_to_dev(disk)->kobj; - sysfs_remove_link(fs_info->fs_devices->device_dir_kobj, + sysfs_remove_link(fs_devices->device_dir_kobj, disk_kobj->name); } diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h index f1d7c7604f6fd..808d12ac4a5a1 100644 --- a/fs/btrfs/sysfs.h +++ b/fs/btrfs/sysfs.h @@ -84,6 +84,6 @@ extern struct kobj_type space_info_ktype; extern struct kobj_type btrfs_raid_ktype; int btrfs_kobj_add_device(struct btrfs_fs_devices *fs_devices, struct btrfs_device *one_device); -int btrfs_kobj_rm_device(struct btrfs_fs_info *fs_info, +int btrfs_kobj_rm_device(struct btrfs_fs_devices *fs_devices, struct btrfs_device *one_device); #endif /* _BTRFS_SYSFS_H_ */ diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index d68d3944af4ba..b5cc129bfa4b2 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1710,7 +1710,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) if (device->bdev) { device->fs_devices->open_devices--; /* remove sysfs entry */ - btrfs_kobj_rm_device(root->fs_info, device); + btrfs_kobj_rm_device(root->fs_info->fs_devices, device); } call_rcu(&device->rcu, free_device); @@ -2294,7 +2294,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) error_trans: btrfs_end_transaction(trans, root); rcu_string_free(device->name); - btrfs_kobj_rm_device(root->fs_info, device); + btrfs_kobj_rm_device(root->fs_info->fs_devices, device); kfree(device); error: blkdev_put(bdev, FMODE_EXCL); -- cgit v1.2.3 From d2ff1b2008cb807102fc9496fadd8eddff98350c Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Tue, 10 Mar 2015 06:38:42 +0800 Subject: Btrfs: sysfs: add support to show replacing target in the sysfs This patch will add support to show the replacing target in sysfs during the process of replacement. Signed-off-by: Anand Jain Signed-off-by: David Sterba --- fs/btrfs/dev-replace.c | 5 ++++- fs/btrfs/volumes.c | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) (limited to 'fs/btrfs/dev-replace.c') diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index f982ef303f1c3..862fbc2067555 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -376,6 +376,10 @@ int btrfs_dev_replace_start(struct btrfs_root *root, WARN_ON(!tgt_device); dev_replace->tgtdev = tgt_device; + ret = btrfs_kobj_add_device(tgt_device->fs_devices, tgt_device); + if (ret) + btrfs_error(root->fs_info, ret, "kobj add dev failed"); + printk_in_rcu(KERN_INFO "BTRFS: dev_replace from %s (devid %llu) to %s started\n", src_device->missing ? "" : @@ -584,7 +588,6 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, /* replace the sysfs entry */ btrfs_kobj_rm_device(fs_info->fs_devices, src_device); - btrfs_kobj_add_device(fs_info->fs_devices, tgt_device); btrfs_rm_dev_replace_free_srcdev(fs_info, src_device); /* write back the superblocks */ diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index ea293db89cc40..2d9061f078ca9 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1940,6 +1940,9 @@ void btrfs_destroy_dev_replace_tgtdev(struct btrfs_fs_info *fs_info, mutex_lock(&uuid_mutex); WARN_ON(!tgtdev); mutex_lock(&fs_info->fs_devices->device_list_mutex); + + btrfs_kobj_rm_device(fs_info->fs_devices, tgtdev); + if (tgtdev->bdev) { btrfs_scratch_superblock(tgtdev); fs_info->fs_devices->open_devices--; -- cgit v1.2.3