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btrfs: Make btrfs_find_device_by_devspec return btrfs_device directly

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Instead of returning an error value and using one of the parameters for
returning the actual object we are interested in just refactor the
function to directly return btrfs_device *. Also bubble up the error
handling for the special BTRFS_ERROR_DEV_MISSING_NOT_FOUND value into
btrfs_rm_device. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov
2018-09-03 12:46:14 +03:00
committed by David Sterba
parent 6c05040702
commit a27a94c2b0
3 changed files with 25 additions and 28 deletions
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8
fs/btrfs/dev-replace.c
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@@ -409,10 +409,10 @@ int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info,
struct btrfs_device *tgt_device = NULL;
struct btrfs_device *src_device = NULL;
ret = btrfs_find_device_by_devspec(fs_info, srcdevid,
srcdev_name, &src_device);
if (ret)
return ret;
src_device = btrfs_find_device_by_devspec(fs_info, srcdevid,
srcdev_name);
if (IS_ERR(src_device))
return PTR_ERR(src_device);
ret = btrfs_init_dev_replace_tgtdev(fs_info, tgtdev_name,
src_device, &tgt_device);