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btrfs-progs: check: use on-stack path buffer in check_fs_first_inode 

We don't need to conserve stack space too much unlike kernel, also
remove one error condition.

Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2016-11-03 00:37:51 +01:00
parent b625650933
commit f73c5e075e
1 changed files with 5 additions and 7 deletions
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12
cmds-check.c
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@ -4934,19 +4934,17 @@ out:
static int check_fs_first_inode(struct btrfs_root *root, unsigned int ext_ref)
{
struct btrfs_path *path;
struct btrfs_path path;
struct btrfs_key key;
int err = 0;
int ret;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
btrfs_init_path(&path);
key.objectid = BTRFS_FIRST_FREE_OBJECTID;
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
ret = btrfs_search_slot(NULL, root, &key, &path, 0, 0);
if (ret < 0)
goto out;
if (ret > 0) {
@ -4954,12 +4952,12 @@ static int check_fs_first_inode(struct btrfs_root *root, unsigned int ext_ref)
err |= INODE_ITEM_MISSING;
}
err |= check_inode_item(root, path, ext_ref);
err |= check_inode_item(root, &path, ext_ref);
err &= ~LAST_ITEM;
if (err && !ret)
ret = -EIO;
out:
btrfs_free_path(path);
btrfs_release_path(&path);
return ret;
}