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btrfs: remove redundant variable from btrfs_cross_ref_exist 

Since commit d7df2c796d ("Btrfs attach delayed ref updates to delayed
ref heads"), check_delayed_ref() won't return -ENOENT.

In btrfs_cross_ref_exist(), two variables 'ret' and 'ret2' are
originally used to handle -ENOENT error case.  Since the code is not
needed anymore, let's just remove 'ret2'.

Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Misono Tomohiro 2018-08-30 10:59:16 +09:00 committed by David Sterba
parent e49aabd973
commit 380fd06640
1 changed files with 2 additions and 11 deletions
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13
fs/btrfs/extent-tree.c
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@ -3139,7 +3139,6 @@ int btrfs_cross_ref_exist(struct btrfs_root *root, u64 objectid, u64 offset,
{
struct btrfs_path *path;
int ret;
int ret2;
path = btrfs_alloc_path();
if (!path)
@ -3151,17 +3150,9 @@ int btrfs_cross_ref_exist(struct btrfs_root *root, u64 objectid, u64 offset,
if (ret && ret != -ENOENT)
goto out;
ret2 = check_delayed_ref(root, path, objectid,
offset, bytenr);
} while (ret2 == -EAGAIN);
ret = check_delayed_ref(root, path, objectid, offset, bytenr);
} while (ret == -EAGAIN);
if (ret2 && ret2 != -ENOENT) {
ret = ret2;
goto out;
}
if (ret != -ENOENT || ret2 != -ENOENT)
ret = 0;
out:
btrfs_free_path(path);
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)