diff options
| author | Nikolay Borisov <nborisov@suse.com> | 2018-10-30 17:43:24 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-12-17 16:51:37 +0300 |
| commit | de37aa513105f864d3c21105bf5542d498f21ca2 (patch) | |
| tree | 309336759425188e213244d654f8abfdcf16f955 /fs/btrfs/volumes.c | |
| parent | 56f20f4009d3c0b2e6165d9136fed40028c8225d (diff) | |
| download | linux-de37aa513105f864d3c21105bf5542d498f21ca2.tar.xz | |
btrfs: Remove fsid/metadata_fsid fields from btrfs_info
Currently btrfs_fs_info structure contains a copy of the
fsid/metadata_uuid fields. Same values are also contained in the
btrfs_fs_devices structure which fs_info has a reference to. Let's
reduce duplication by removing the fields from fs_info and always refer
to the ones in fs_devices. No functional changes.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index f5626671d61d..032310dacf77 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1780,8 +1780,8 @@ static int btrfs_add_dev_item(struct btrfs_trans_handle *trans, ptr = btrfs_device_uuid(dev_item); write_extent_buffer(leaf, device->uuid, ptr, BTRFS_UUID_SIZE); ptr = btrfs_device_fsid(dev_item); - write_extent_buffer(leaf, trans->fs_info->metadata_fsid, ptr, - BTRFS_FSID_SIZE); + write_extent_buffer(leaf, trans->fs_info->fs_devices->metadata_uuid, + ptr, BTRFS_FSID_SIZE); btrfs_mark_buffer_dirty(leaf); ret = 0; @@ -2324,9 +2324,7 @@ static int btrfs_prepare_sprout(struct btrfs_fs_info *fs_info) fs_devices->seed = seed_devices; generate_random_uuid(fs_devices->fsid); - memcpy(fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); memcpy(fs_devices->metadata_uuid, fs_devices->fsid, BTRFS_FSID_SIZE); - memcpy(fs_info->metadata_fsid, fs_devices->fsid, BTRFS_FSID_SIZE); memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); mutex_unlock(&fs_devices->device_list_mutex); @@ -2568,7 +2566,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path * so rename the fsid on the sysfs */ snprintf(fsid_buf, BTRFS_UUID_UNPARSED_SIZE, "%pU", - fs_info->fsid); + fs_info->fs_devices->fsid); if (kobject_rename(&fs_devices->fsid_kobj, fsid_buf)) btrfs_warn(fs_info, "sysfs: failed to create fsid for sprout"); @@ -6722,7 +6720,7 @@ static int read_one_dev(struct btrfs_fs_info *fs_info, read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item), BTRFS_FSID_SIZE); - if (memcmp(fs_uuid, fs_info->metadata_fsid, BTRFS_FSID_SIZE)) { + if (memcmp(fs_uuid, fs_devices->metadata_uuid, BTRFS_FSID_SIZE)) { fs_devices = open_seed_devices(fs_info, fs_uuid); if (IS_ERR(fs_devices)) return PTR_ERR(fs_devices); |