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authorJeff Mahoney <jeffm@suse.com>2016-06-23 00:54:24 +0200
committerDavid Sterba <dsterba@suse.com>2016-12-06 16:06:59 +0100
commit2ff7e61e0d30ff166a2ae94575526bffe11fd1a8 (patch)
treea2b8aba1d10c010cc247f3e0866dcbd627e852f3 /fs/btrfs/dir-item.c
parentbtrfs: simplify btrfs_wait_cache_io prototype (diff)
downloadlinux-2ff7e61e0d30ff166a2ae94575526bffe11fd1a8.tar.xz
linux-2ff7e61e0d30ff166a2ae94575526bffe11fd1a8.zip
btrfs: take an fs_info directly when the root is not used otherwise
There are loads of functions in btrfs that accept a root parameter but only use it to obtain an fs_info pointer. Let's convert those to just accept an fs_info pointer directly. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/dir-item.c')
-rw-r--r--fs/btrfs/dir-item.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 128f8ab20d41..b039fe0c751a 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -38,6 +38,7 @@ static struct btrfs_dir_item *insert_with_overflow(struct btrfs_trans_handle
const char *name,
int name_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
char *ptr;
struct btrfs_item *item;
@@ -46,10 +47,10 @@ static struct btrfs_dir_item *insert_with_overflow(struct btrfs_trans_handle
ret = btrfs_insert_empty_item(trans, root, path, cpu_key, data_size);
if (ret == -EEXIST) {
struct btrfs_dir_item *di;
- di = btrfs_match_dir_item_name(root, path, name, name_len);
+ di = btrfs_match_dir_item_name(fs_info, path, name, name_len);
if (di)
return ERR_PTR(-EEXIST);
- btrfs_extend_item(root, path, data_size);
+ btrfs_extend_item(fs_info, path, data_size);
} else if (ret < 0)
return ERR_PTR(ret);
WARN_ON(ret > 0);
@@ -172,8 +173,9 @@ second_insert:
}
btrfs_release_path(path);
- ret2 = btrfs_insert_delayed_dir_index(trans, root, name, name_len, dir,
- &disk_key, type, index);
+ ret2 = btrfs_insert_delayed_dir_index(trans, root->fs_info, name,
+ name_len, dir, &disk_key, type,
+ index);
out_free:
btrfs_free_path(path);
if (ret)
@@ -210,7 +212,7 @@ struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans,
if (ret > 0)
return NULL;
- return btrfs_match_dir_item_name(root, path, name, name_len);
+ return btrfs_match_dir_item_name(root->fs_info, path, name, name_len);
}
int btrfs_check_dir_item_collision(struct btrfs_root *root, u64 dir,
@@ -246,7 +248,7 @@ int btrfs_check_dir_item_collision(struct btrfs_root *root, u64 dir,
}
/* we found an item, look for our name in the item */
- di = btrfs_match_dir_item_name(root, path, name, name_len);
+ di = btrfs_match_dir_item_name(root->fs_info, path, name, name_len);
if (di) {
/* our exact name was found */
ret = -EEXIST;
@@ -301,7 +303,7 @@ btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans,
return ERR_PTR(ret);
if (ret > 0)
return ERR_PTR(-ENOENT);
- return btrfs_match_dir_item_name(root, path, name, name_len);
+ return btrfs_match_dir_item_name(root->fs_info, path, name, name_len);
}
struct btrfs_dir_item *
@@ -342,7 +344,8 @@ btrfs_search_dir_index_item(struct btrfs_root *root,
if (key.objectid != dirid || key.type != BTRFS_DIR_INDEX_KEY)
break;
- di = btrfs_match_dir_item_name(root, path, name, name_len);
+ di = btrfs_match_dir_item_name(root->fs_info, path,
+ name, name_len);
if (di)
return di;
@@ -371,7 +374,7 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
if (ret > 0)
return NULL;
- return btrfs_match_dir_item_name(root, path, name, name_len);
+ return btrfs_match_dir_item_name(root->fs_info, path, name, name_len);
}
/*
@@ -379,7 +382,7 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
* this walks through all the entries in a dir item and finds one
* for a specific name.
*/
-struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root,
+struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_fs_info *fs_info,
struct btrfs_path *path,
const char *name, int name_len)
{
@@ -392,7 +395,7 @@ struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root,
leaf = path->nodes[0];
dir_item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_dir_item);
- if (verify_dir_item(root, leaf, dir_item))
+ if (verify_dir_item(fs_info, leaf, dir_item))
return NULL;
total_len = btrfs_item_size_nr(leaf, path->slots[0]);
@@ -442,16 +445,16 @@ int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans,
start = btrfs_item_ptr_offset(leaf, path->slots[0]);
memmove_extent_buffer(leaf, ptr, ptr + sub_item_len,
item_len - (ptr + sub_item_len - start));
- btrfs_truncate_item(root, path, item_len - sub_item_len, 1);
+ btrfs_truncate_item(root->fs_info, path,
+ item_len - sub_item_len, 1);
}
return ret;
}
-int verify_dir_item(struct btrfs_root *root,
+int verify_dir_item(struct btrfs_fs_info *fs_info,
struct extent_buffer *leaf,
struct btrfs_dir_item *dir_item)
{
- struct btrfs_fs_info *fs_info = root->fs_info;
u16 namelen = BTRFS_NAME_LEN;
u8 type = btrfs_dir_type(leaf, dir_item);