#include "ctree.h"
#include "xattr.h"
#include "acl.h"
+#include "misc.h"
struct posix_acl *btrfs_get_acl(struct inode *inode, int type, bool rcu)
{
int size;
const char *name;
- char *value = NULL;
+ char AUTO_KFREE(value);
struct posix_acl *acl;
if (rcu)
acl = NULL;
else
acl = ERR_PTR(size);
- kfree(value);
return acl;
}
{
int ret, size = 0;
const char *name;
- char *value = NULL;
+ char AUTO_KFREE(value);
switch (type) {
case ACL_TYPE_ACCESS:
nofs_flag = memalloc_nofs_save();
value = kmalloc(size, GFP_KERNEL);
memalloc_nofs_restore(nofs_flag);
- if (!value) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!value)
+ return -ENOMEM;
ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
if (ret < 0)
- goto out;
+ return ret;
}
if (trans)
ret = btrfs_setxattr(trans, inode, name, value, size, 0);
else
ret = btrfs_setxattr_trans(inode, name, value, size, 0);
+ if (ret < 0)
+ return ret;
-out:
- kfree(value);
-
- if (!ret)
- set_cached_acl(inode, type, acl);
-
- return ret;
+ set_cached_acl(inode, type, acl);
+ return 0;
}
int btrfs_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
struct btrfs_key first_key;
const u32 first_data_size = first_item->data_len;
int total_size;
- char *ins_data = NULL;
+ char AUTO_KFREE(ins_data);
int ret;
bool continuous_keys_only = false;
ins_data = kmalloc_array(batch.nr,
sizeof(u32) + sizeof(struct btrfs_key), GFP_NOFS);
- if (!ins_data) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!ins_data)
+ return -ENOMEM;
ins_sizes = (u32 *)ins_data;
ins_keys = (struct btrfs_key *)(ins_data + batch.nr * sizeof(u32));
batch.keys = ins_keys;
ret = btrfs_insert_empty_items(trans, root, path, &batch);
if (ret)
- goto out;
+ return ret;
list_for_each_entry(curr, &item_list, tree_list) {
char *data_ptr;
list_del(&curr->tree_list);
btrfs_release_delayed_item(curr);
}
-out:
- kfree(ins_data);
- return ret;
+
+ return 0;
}
static int btrfs_insert_delayed_items(struct btrfs_trans_handle *trans,
struct btrfs_trans_handle *trans;
struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_root_item *root_item = &root->root_item;
- struct walk_control *wc;
+ struct walk_control AUTO_KFREE(wc);
struct btrfs_key key;
const u64 rootid = btrfs_root_id(root);
int ret = 0;
wc = kzalloc(sizeof(*wc), GFP_NOFS);
if (!wc) {
- btrfs_free_path(path);
ret = -ENOMEM;
- goto out;
+ goto out_free;
}
/*
btrfs_end_transaction_throttle(trans);
out_free:
- kfree(wc);
btrfs_free_path(path);
out:
if (!ret && root_dropped) {
{
struct btrfs_fs_info *fs_info = root->fs_info;
BTRFS_PATH_AUTO_FREE(path);
- struct walk_control *wc;
+ struct walk_control AUTO_KFREE(wc);
int level;
int parent_level;
int ret = 0;
while (1) {
ret = walk_down_tree(trans, root, path, wc);
if (ret < 0)
- break;
+ return ret;
ret = walk_up_tree(trans, root, path, wc, parent_level);
if (ret) {
- if (ret > 0)
- ret = 0;
+ if (ret < 0)
+ return ret;
break;
}
}
- kfree(wc);
- return ret;
+ return 0;
}
/*
struct btrfs_fs_info *fs_info = inode_to_fs_info(dir);
struct btrfs_trans_handle *trans;
struct btrfs_key key;
- struct btrfs_root_item *root_item;
+ struct btrfs_root_item AUTO_KFREE(root_item);
struct btrfs_inode_item *inode_item;
struct extent_buffer *leaf;
struct btrfs_root *root = BTRFS_I(dir)->root;
ret = btrfs_get_free_objectid(fs_info->tree_root, &objectid);
if (ret)
- goto out_root_item;
+ return ret;
/*
* Don't create subvolume whose level is not zero. Or qgroup will be
* screwed up since it assumes subvolume qgroup's level to be 0.
*/
- if (btrfs_qgroup_level(objectid)) {
- ret = -ENOSPC;
- goto out_root_item;
- }
+ if (btrfs_qgroup_level(objectid))
+ return -ENOSPC;
ret = get_anon_bdev(&anon_dev);
if (ret < 0)
- goto out_root_item;
+ return ret;
new_inode_args.inode = btrfs_new_subvol_inode(idmap, dir);
if (!new_inode_args.inode) {
out_anon_dev:
if (anon_dev)
free_anon_bdev(anon_dev);
-out_root_item:
- kfree(root_item);
+
return ret;
}
struct btrfs_ioctl_space_args space_args = { 0 };
struct btrfs_ioctl_space_info space;
struct btrfs_ioctl_space_info *dest;
- struct btrfs_ioctl_space_info *dest_orig;
+ struct btrfs_ioctl_space_info AUTO_KFREE(dest_orig);
struct btrfs_ioctl_space_info __user *user_dest;
struct btrfs_space_info *info;
static const u64 types[] = {
(arg + sizeof(struct btrfs_ioctl_space_args));
if (copy_to_user(user_dest, dest_orig, alloc_size))
- ret = -EFAULT;
+ return -EFAULT;
- kfree(dest_orig);
out:
if (ret == 0 && copy_to_user(arg, &space_args, sizeof(space_args)))
ret = -EFAULT;
static long btrfs_ioctl_balance_progress(struct btrfs_fs_info *fs_info,
void __user *arg)
{
- struct btrfs_ioctl_balance_args *bargs;
+ struct btrfs_ioctl_balance_args AUTO_KFREE(bargs);
int ret = 0;
if (!capable(CAP_SYS_ADMIN))
if (copy_to_user(arg, bargs, sizeof(*bargs)))
ret = -EFAULT;
-
- kfree(bargs);
out:
mutex_unlock(&fs_info->balance_mutex);
return ret;
u64 safe_set, u64 safe_clear)
{
const char *type = btrfs_feature_set_name(set);
- char *names;
+ const char AUTO_KFREE(names);
u64 disallowed, unsupported;
u64 set_mask = flags & change_mask;
u64 clear_mask = ~flags & change_mask;
unsupported = set_mask & ~supported_flags;
if (unsupported) {
names = btrfs_printable_features(set, unsupported);
- if (names) {
+ if (names)
btrfs_warn(fs_info,
"this kernel does not support the %s feature bit%s",
names, strchr(names, ',') ? "s" : "");
- kfree(names);
- } else
+ else
btrfs_warn(fs_info,
"this kernel does not support %s bits 0x%llx",
type, unsupported);
disallowed = set_mask & ~safe_set;
if (disallowed) {
names = btrfs_printable_features(set, disallowed);
- if (names) {
+ if (names)
btrfs_warn(fs_info,
"can't set the %s feature bit%s while mounted",
names, strchr(names, ',') ? "s" : "");
- kfree(names);
- } else
+ else
btrfs_warn(fs_info,
"can't set %s bits 0x%llx while mounted",
type, disallowed);
disallowed = clear_mask & ~safe_clear;
if (disallowed) {
names = btrfs_printable_features(set, disallowed);
- if (names) {
+ if (names)
btrfs_warn(fs_info,
"can't clear the %s feature bit%s while mounted",
names, strchr(names, ',') ? "s" : "");
- kfree(names);
- } else
+ else
btrfs_warn(fs_info,
"can't clear %s bits 0x%llx while mounted",
type, disallowed);
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_tree_parent_check check = { 0 };
struct btrfs_qgroup_swapped_blocks *blocks = &root->swapped_blocks;
- struct btrfs_qgroup_swapped_block *block;
+ struct btrfs_qgroup_swapped_block AUTO_KFREE(block);
struct extent_buffer *reloc_eb = NULL;
struct rb_node *node;
bool swapped = false;
ret = qgroup_trace_subtree_swap(trans, reloc_eb, subvol_eb,
block->last_snapshot, block->trace_leaf);
free_out:
- kfree(block);
free_extent_buffer(reloc_eb);
out:
if (ret < 0) {
u64 newlen, u64 frontpad)
{
struct btrfs_root *stripe_root = trans->fs_info->stripe_root;
- struct btrfs_stripe_extent *extent, *newitem;
+ struct btrfs_stripe_extent *extent, AUTO_KFREE(newitem);
struct extent_buffer *leaf;
int slot;
size_t item_size;
ret = btrfs_del_item(trans, stripe_root, path);
if (ret)
- goto out;
+ return ret;
btrfs_release_path(path);
- ret = btrfs_insert_item(trans, stripe_root, &newkey, newitem, item_size);
-
-out:
- kfree(newitem);
- return ret;
+ return btrfs_insert_item(trans, stripe_root, &newkey, newitem, item_size);
}
int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 length)
struct btrfs_key stripe_key;
struct btrfs_root *stripe_root = fs_info->stripe_root;
const int num_stripes = btrfs_bg_type_to_factor(bioc->map_type);
- struct btrfs_stripe_extent *stripe_extent;
+ struct btrfs_stripe_extent AUTO_KFREE(stripe_extent);
const size_t item_size = struct_size(stripe_extent, strides, num_stripes);
int ret;
btrfs_abort_transaction(trans, ret);
}
- kfree(stripe_extent);
-
return ret;
}
BTRFS_PATH_AUTO_FREE(path);
struct extent_buffer *leaf;
struct btrfs_trans_handle *trans;
- char *buf = NULL;
+ char AUTO_KVFREE(buf);
struct btrfs_key key;
u32 nritems;
int slot;
return ret;
path = btrfs_alloc_path();
- if (!path) {
- kvfree(buf);
+ if (!path)
return ret;
- }
path->reada = READA_FORWARD;
/* Clone data */
}
out:
- kvfree(buf);
clear_bit(BTRFS_INODE_NO_DELALLOC_FLUSH, &BTRFS_I(inode)->runtime_flags);
return ret;
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *rb_node;
- struct mapping_node *node = NULL;
+ struct mapping_node AUTO_KFREE(node);
struct reloc_control *rc = fs_info->reloc_ctl;
bool put_ref = false;
spin_unlock(&fs_info->trans_lock);
if (put_ref)
btrfs_put_root(root);
- kfree(node);
}
/*
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *reloc_root;
struct extent_buffer *eb;
- struct btrfs_root_item *root_item;
+ struct btrfs_root_item AUTO_KFREE(root_item);
struct btrfs_key root_key;
int ret = 0;
- bool must_abort = false;
root_item = kmalloc(sizeof(*root_item), GFP_NOFS);
if (!root_item)
btrfs_err(fs_info,
"cannot relocate partially dropped subvolume %llu, drop progress key " BTRFS_KEY_FMT,
objectid, BTRFS_KEY_FMT_VALUE(&cpu_key));
- ret = -EUCLEAN;
- goto fail;
+ return ERR_PTR(-EUCLEAN);
}
/* called by btrfs_init_reloc_root */
ret = btrfs_copy_root(trans, root, root->commit_root, &eb,
BTRFS_TREE_RELOC_OBJECTID);
if (ret)
- goto fail;
+ return ERR_PTR(ret);
/*
* Set the last_snapshot field to the generation of the commit
ret = btrfs_copy_root(trans, root, root->node, &eb,
BTRFS_TREE_RELOC_OBJECTID);
if (ret)
- goto fail;
+ return ERR_PTR(ret);
}
/*
* We have changed references at this point, we must abort the
- * transaction if anything fails.
+ * transaction if anything fails (i.e. 'goto abort').
*/
- must_abort = true;
memcpy(root_item, &root->root_item, sizeof(*root_item));
btrfs_set_root_bytenr(root_item, eb->start);
ret = btrfs_insert_root(trans, fs_info->tree_root,
&root_key, root_item);
if (ret)
- goto fail;
-
- kfree(root_item);
+ goto abort;
reloc_root = btrfs_read_tree_root(fs_info->tree_root, &root_key);
if (IS_ERR(reloc_root)) {
set_bit(BTRFS_ROOT_SHAREABLE, &reloc_root->state);
btrfs_set_root_last_trans(reloc_root, trans->transid);
return reloc_root;
-fail:
- kfree(root_item);
+
abort:
- if (must_abort)
- btrfs_abort_transaction(trans, ret);
+ btrfs_abort_transaction(trans, ret);
return ERR_PTR(ret);
}
const struct file_extent_cluster *cluster = &rc->cluster;
u64 offset = BTRFS_I(inode)->reloc_block_group_start;
u64 cur_file_offset = cluster->start - offset;
- struct file_ra_state *ra;
+ struct file_ra_state AUTO_KFREE(ra);
int cluster_nr = 0;
int ret = 0;
ret = prealloc_file_extent_cluster(rc);
if (ret)
- goto out;
+ return ret;
file_ra_state_init(ra, inode->i_mapping);
ret = setup_relocation_extent_mapping(rc);
if (ret)
- goto out;
+ return ret;
while (cur_file_offset < cluster->end - offset) {
ret = relocate_one_folio(rc, ra, &cluster_nr, &cur_file_offset);
}
if (ret == 0)
WARN_ON(cluster_nr != cluster->nr);
-out:
- kfree(ra);
return ret;
}
struct btrfs_key key;
struct btrfs_root_ref *ref;
struct extent_buffer *leaf;
- char *name = NULL;
+ char AUTO_KFREE(name);
int namelen;
path = btrfs_alloc_path();
ret = btrfs_search_slot_for_read(send_root->fs_info->tree_root,
&key, path, 1, 0);
if (ret < 0)
- goto out;
- if (ret) {
- ret = -ENOENT;
- goto out;
- }
+ return ret;
+ if (ret)
+ return -ENOENT;
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
if (key.type != BTRFS_ROOT_BACKREF_KEY ||
key.objectid != btrfs_root_id(send_root)) {
- ret = -ENOENT;
- goto out;
+ return -ENOENT;
}
ref = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_root_ref);
namelen = btrfs_root_ref_name_len(leaf, ref);
if (parent_root) {
ret = begin_cmd(sctx, BTRFS_SEND_C_SNAPSHOT);
if (ret < 0)
- goto out;
+ return ret;
} else {
ret = begin_cmd(sctx, BTRFS_SEND_C_SUBVOL);
if (ret < 0)
- goto out;
+ return ret;
}
TLV_PUT_STRING(sctx, BTRFS_SEND_A_PATH, name, namelen);
ret = send_cmd(sctx);
tlv_put_failure:
-out:
- kfree(name);
return ret;
}
*/
static int refresh_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
{
- char *name;
+ char AUTO_KFREE(name);
int ret;
name = kmemdup(ref->name, ref->name_len, GFP_KERNEL);
fs_path_reset(ref->full_path);
ret = get_cur_path(sctx, ref->dir, ref->dir_gen, ref->full_path);
if (ret < 0)
- goto out;
+ return ret;
ret = fs_path_add(ref->full_path, name, ref->name_len);
if (ret < 0)
- goto out;
+ return ret;
/* Update the reference's base name pointer. */
set_ref_path(ref, ref->full_path);
-out:
- kfree(name);
- return ret;
+
+ return 0;
}
static int rbtree_check_dir_ref_comp(const void *k, const struct rb_node *node)
{
int ret;
struct send_ctx *sctx = ctx;
- char *found_data = NULL;
- int found_data_len = 0;
+ char AUTO_KFREE(found_data);
+ int found_data_len = 0;
ret = find_xattr(sctx->parent_root, sctx->right_path,
sctx->cmp_key, name, name_len, &found_data,
}
}
- kfree(found_data);
return ret;
}
struct btrfs_dir_item *di;
struct extent_buffer *leaf;
unsigned long data_ptr;
- char *buf = NULL;
+ char AUTO_KFREE(buf);
int buf_len;
int ret = 0;
XATTR_NAME_CAPS, strlen(XATTR_NAME_CAPS), 0);
if (!di) {
/* There is no xattr for this inode */
- goto out;
+ return 0;
} else if (IS_ERR(di)) {
- ret = PTR_ERR(di);
- goto out;
+ return PTR_ERR(di);
}
leaf = path->nodes[0];
buf_len = btrfs_dir_data_len(leaf, di);
buf = kmalloc(buf_len, GFP_KERNEL);
- if (!buf) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!buf)
+ return -ENOMEM;
data_ptr = (unsigned long)(di + 1) + btrfs_dir_name_len(leaf, di);
read_extent_buffer(leaf, buf, data_ptr, buf_len);
ret = send_set_xattr(sctx, XATTR_NAME_CAPS,
strlen(XATTR_NAME_CAPS), buf, buf_len);
-out:
- kfree(buf);
return ret;
}
static inline int btrfs_calc_avail_data_space(struct btrfs_fs_info *fs_info,
u64 *free_bytes)
{
- struct btrfs_device_info *devices_info;
+ struct btrfs_device_info AUTO_KFREE(devices_info);
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
u64 type;
nr_devices--;
}
- kfree(devices_info);
*free_bytes = avail_space;
return 0;
}
static int test_eb_bitmaps(u32 sectorsize, u32 nodesize)
{
struct btrfs_fs_info *fs_info;
- unsigned long *bitmap = NULL;
+ unsigned long AUTO_KFREE(bitmap);
struct extent_buffer *eb = NULL;
int ret;
ret = __test_eb_bitmaps(bitmap, eb);
out:
free_extent_buffer(eb);
- kfree(bitmap);
btrfs_free_dummy_fs_info(fs_info);
return ret;
}
struct rmap_test_vector *test)
{
struct btrfs_chunk_map *map;
- u64 *logical = NULL;
+ u64 AUTO_KFREE(logical);
int i, out_ndaddrs, out_stripe_len;
int ret;
if (ret) {
test_err("error adding chunk map to mapping tree");
btrfs_free_chunk_map(map);
- goto out_free;
+ return ret;
}
ret = btrfs_rmap_block(fs_info, map->start, btrfs_sb_offset(1),
ret = 0;
out:
btrfs_remove_chunk_map(fs_info, map);
-out_free:
- kfree(logical);
return ret;
}
int count)
{
struct btrfs_root *log = inode->root->log_root;
- char *ins_data = NULL;
+ char AUTO_KFREE(ins_data);
struct btrfs_item_batch batch;
struct extent_buffer *dst;
unsigned long src_offset;
ret = btrfs_insert_empty_items(trans, log, dst_path, &batch);
if (ret)
- goto out;
+ return ret;
dst = dst_path->nodes[0];
/*
if (btrfs_get_first_dir_index_to_log(inode) == 0)
btrfs_set_first_dir_index_to_log(inode, batch.keys[0].offset);
-out:
- kfree(ins_data);
return ret;
}
struct btrfs_key *ins_keys;
u32 *ins_sizes;
struct btrfs_item_batch batch;
- char *ins_data;
+ char AUTO_KFREE(ins_data);
int dst_index;
const bool skip_csum = (inode->flags & BTRFS_INODE_NODATASUM);
const u64 i_size = i_size_read(&inode->vfs_inode);
disk_bytenr + extent_num_bytes - 1,
&ordered_sums, false);
if (ret < 0)
- goto out;
+ return ret;
ret = 0;
list_for_each_entry_safe(sums, sums_next, &ordered_sums, list) {
kfree(sums);
}
if (ret)
- goto out;
+ return ret;
add_to_batch:
ins_sizes[dst_index] = btrfs_item_size(src, src_slot);
* so we don't need to do anything.
*/
if (batch.nr == 0)
- goto out;
+ return 0;
ret = btrfs_insert_empty_items(trans, log, dst_path, &batch);
if (ret)
- goto out;
+ return ret;
dst_index = 0;
for (int i = 0; i < nr; i++) {
}
btrfs_release_path(dst_path);
-out:
- kfree(ins_data);
return ret;
}
struct btrfs_inode *inode,
u64 *other_ino, u64 *other_parent)
{
- int ret;
BTRFS_PATH_AUTO_FREE(search_path);
- char *name = NULL;
+ char AUTO_KFREE(name);
u32 name_len = 0;
u32 item_size = btrfs_item_size(eb, slot);
u32 cur_offset = 0;
char *new_name;
new_name = krealloc(name, this_name_len, GFP_NOFS);
- if (!new_name) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!new_name)
+ return -ENOMEM;
name_len = this_name_len;
name = new_name;
}
di, &di_key);
if (di_key.type == BTRFS_INODE_ITEM_KEY) {
if (di_key.objectid != key->objectid) {
- ret = 1;
*other_ino = di_key.objectid;
*other_parent = parent;
+ return 1;
} else {
- ret = 0;
+ return 0;
}
} else {
- ret = -EAGAIN;
+ return -EAGAIN;
}
- goto out;
} else if (IS_ERR(di)) {
- ret = PTR_ERR(di);
- goto out;
+ return PTR_ERR(di);
}
btrfs_release_path(search_path);
cur_offset += this_len;
}
- ret = 0;
-out:
- kfree(name);
- return ret;
+
+ return 0;
}
/*
{
struct path old = { .mnt = NULL, .dentry = NULL };
struct path new = { .mnt = NULL, .dentry = NULL };
- char *old_path = NULL;
+ char AUTO_KFREE(old_path);
bool is_same = false;
int ret;
if (path_equal(&old, &new))
is_same = true;
out:
- kfree(old_path);
path_put(&old);
path_put(&new);
return is_same;
{
u32 size_buf = 1024;
char tmp_buf[192] = {'\0'};
- char *buf;
+ char AUTO_KFREE(buf);
char *bp;
u32 size_bp = size_buf;
int ret;
btrfs_info(fs_info, "balance: %s %s",
(bctl->flags & BTRFS_BALANCE_RESUME) ?
"resume" : "start", buf);
-
- kfree(buf);
}
/*
{
struct btrfs_fs_info *info = trans->fs_info;
struct btrfs_fs_devices *fs_devices = info->fs_devices;
- struct btrfs_device_info *devices_info = NULL;
+ struct btrfs_device_info AUTO_KFREE(devices_info);
struct alloc_chunk_ctl ctl;
- struct btrfs_block_group *block_group;
int ret;
lockdep_assert_held(&info->chunk_mutex);
return ERR_PTR(-ENOMEM);
ret = gather_device_info(fs_devices, &ctl, devices_info);
- if (ret < 0) {
- block_group = ERR_PTR(ret);
- goto out;
- }
+ if (ret < 0)
+ return ERR_PTR(ret);
ret = decide_stripe_size(fs_devices, &ctl, devices_info);
- if (ret < 0) {
- block_group = ERR_PTR(ret);
- goto out;
- }
-
- block_group = create_chunk(trans, &ctl, devices_info);
+ if (ret < 0)
+ return ERR_PTR(ret);
-out:
- kfree(devices_info);
- return block_group;
+ return create_chunk(trans, &ctl, devices_info);
}
/*
struct btrfs_chunk_map *map;
u64 logical = cache->start;
u64 length = cache->length;
- struct zone_info *zone_info = NULL;
+ struct zone_info AUTO_KFREE(zone_info);
int ret;
int i;
unsigned long *active = NULL;
cache->physical_map = NULL;
}
bitmap_free(active);
- kfree(zone_info);
return ret;
}
projects / thirdparty / kernel / linux.git / commitdiff
