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| author | Anand Jain <anand.jain@oracle.com> | 2017-07-29 17:50:09 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-08-18 16:36:29 +0200 |
| commit | 44880fdc91bc4f6730e37f2cb6025b35c70b312d (patch) | |
| tree | 60f7638eb4ebd353bd7defc742b565b475e90376 /fs/btrfs/volumes.c | |
| parent | 42e9cc46fbe86f83278c14f5d88f353d037258d2 (diff) | |
| download | linux-44880fdc91bc4f6730e37f2cb6025b35c70b312d.tar.bz2 | |
btrfs: use appropriate define for the fsid
Though BTRFS_FSID_SIZE and BTRFS_UUID_SIZE are of the same size, we
should use the matching constant for the fsid buffer.
Signed-off-by: Anand Jain <anand.jain@oracle.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 | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 12bd04a4104f..ed82edf987f4 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1719,7 +1719,7 @@ static int btrfs_add_device(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, fs_info->fsid, ptr, BTRFS_UUID_SIZE); + write_extent_buffer(leaf, fs_info->fsid, ptr, BTRFS_FSID_SIZE); btrfs_mark_buffer_dirty(leaf); ret = 0; @@ -2249,7 +2249,7 @@ static int btrfs_finish_sprout(struct btrfs_trans_handle *trans, struct btrfs_dev_item *dev_item; struct btrfs_device *device; struct btrfs_key key; - u8 fs_uuid[BTRFS_UUID_SIZE]; + u8 fs_uuid[BTRFS_FSID_SIZE]; u8 dev_uuid[BTRFS_UUID_SIZE]; u64 devid; int ret; @@ -2292,7 +2292,7 @@ next_slot: read_extent_buffer(leaf, dev_uuid, btrfs_device_uuid(dev_item), BTRFS_UUID_SIZE); read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item), - BTRFS_UUID_SIZE); + BTRFS_FSID_SIZE); device = btrfs_find_device(fs_info, devid, dev_uuid, fs_uuid); BUG_ON(!device); /* Logic error */ @@ -6243,7 +6243,7 @@ struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid, cur_devices = fs_info->fs_devices; while (cur_devices) { if (!fsid || - !memcmp(cur_devices->fsid, fsid, BTRFS_UUID_SIZE)) { + !memcmp(cur_devices->fsid, fsid, BTRFS_FSID_SIZE)) { device = find_device(cur_devices, devid, uuid); if (device) return device; @@ -6518,7 +6518,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_fs_info *fs_info, fs_devices = fs_info->fs_devices->seed; while (fs_devices) { - if (!memcmp(fs_devices->fsid, fsid, BTRFS_UUID_SIZE)) + if (!memcmp(fs_devices->fsid, fsid, BTRFS_FSID_SIZE)) return fs_devices; fs_devices = fs_devices->seed; @@ -6571,16 +6571,16 @@ static int read_one_dev(struct btrfs_fs_info *fs_info, struct btrfs_device *device; u64 devid; int ret; - u8 fs_uuid[BTRFS_UUID_SIZE]; + u8 fs_uuid[BTRFS_FSID_SIZE]; u8 dev_uuid[BTRFS_UUID_SIZE]; devid = btrfs_device_id(leaf, dev_item); read_extent_buffer(leaf, dev_uuid, btrfs_device_uuid(dev_item), BTRFS_UUID_SIZE); read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item), - BTRFS_UUID_SIZE); + BTRFS_FSID_SIZE); - if (memcmp(fs_uuid, fs_info->fsid, BTRFS_UUID_SIZE)) { + if (memcmp(fs_uuid, fs_info->fsid, BTRFS_FSID_SIZE)) { fs_devices = open_seed_devices(fs_info, fs_uuid); if (IS_ERR(fs_devices)) return PTR_ERR(fs_devices); |