goto buffered;
}
- dio = __iomap_dio_rw(iocb, from, &btrfs_dio_iomap_ops,
- &btrfs_dio_ops, is_sync_kiocb(iocb));
+ dio = __iomap_dio_rw(iocb, from, &btrfs_dio_iomap_ops, &btrfs_dio_ops,
+ 0);
btrfs_inode_unlock(inode, ilock_flags);
goto out;
ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), &data_reserved,
alloc_start, bytes_to_reserve);
- if (ret)
+ if (ret) {
+ unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart,
+ lockend, &cached_state);
goto out;
+ }
ret = btrfs_prealloc_file_range(inode, mode, alloc_start,
alloc_end - alloc_start,
i_blocksize(inode),
return 0;
btrfs_inode_lock(inode, BTRFS_ILOCK_SHARED);
- ret = iomap_dio_rw(iocb, to, &btrfs_dio_iomap_ops, &btrfs_dio_ops,
- is_sync_kiocb(iocb));
+ ret = iomap_dio_rw(iocb, to, &btrfs_dio_iomap_ops, &btrfs_dio_ops, 0);
btrfs_inode_unlock(inode, BTRFS_ILOCK_SHARED);
return ret;
}
return ret;
}
- return generic_file_buffered_read(iocb, to, ret);
+ return filemap_read(iocb, to, ret);
}
const struct file_operations btrfs_file_operations = {
return ret;
}
-static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
+static int btrfs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
+ struct iattr *attr)
{
struct inode *inode = d_inode(dentry);
struct btrfs_root *root = BTRFS_I(inode)->root;
if (btrfs_root_readonly(root))
return -EROFS;
- err = setattr_prepare(dentry, attr);
+ err = setattr_prepare(&init_user_ns, dentry, attr);
if (err)
return err;
}
if (attr->ia_valid) {
- setattr_copy(inode, attr);
+ setattr_copy(&init_user_ns, inode, attr);
inode_inc_iversion(inode);
err = btrfs_dirty_inode(inode);
if (!err && attr->ia_valid & ATTR_MODE)
- err = posix_acl_chmod(inode, inode->i_mode);
+ err = posix_acl_chmod(&init_user_ns, inode,
+ inode->i_mode);
}
return err;
return PTR_ERR(trans);
ret = btrfs_update_inode(trans, root, BTRFS_I(inode));
- if (ret && ret == -ENOSPC) {
+ if (ret && (ret == -ENOSPC || ret == -EDQUOT)) {
/* whoops, lets try again with the full transaction */
btrfs_end_transaction(trans);
trans = btrfs_start_transaction(root, 1);
if (ret != 0)
goto fail_unlock;
- inode_init_owner(inode, dir, mode);
+ inode_init_owner(&init_user_ns, inode, dir, mode);
inode_set_bytes(inode, 0);
inode->i_mtime = current_time(inode);
return err;
}
-static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
- umode_t mode, dev_t rdev)
+static int btrfs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode, dev_t rdev)
{
struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
return err;
}
-static int btrfs_create(struct inode *dir, struct dentry *dentry,
- umode_t mode, bool excl)
+static int btrfs_create(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode, bool excl)
{
struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
return err;
}
-static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+static int btrfs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode)
{
struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct inode *inode = NULL;
return -ENOMEM;
}
-static int btrfs_getattr(const struct path *path, struct kstat *stat,
+static int btrfs_getattr(struct user_namespace *mnt_userns,
+ const struct path *path, struct kstat *stat,
u32 request_mask, unsigned int flags)
{
u64 delalloc_bytes;
STATX_ATTR_IMMUTABLE |
STATX_ATTR_NODUMP);
- generic_fillattr(inode, stat);
+ generic_fillattr(&init_user_ns, inode, stat);
stat->dev = BTRFS_I(inode)->root->anon_dev;
spin_lock(&BTRFS_I(inode)->lock);
return ret;
}
-static int btrfs_rename2(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry,
- unsigned int flags)
+static int btrfs_rename2(struct user_namespace *mnt_userns, struct inode *old_dir,
+ struct dentry *old_dentry, struct inode *new_dir,
+ struct dentry *new_dentry, unsigned int flags)
{
if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
return -EINVAL;
return ret;
}
-static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
+static int btrfs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, const char *symname)
{
struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
return __set_page_dirty_nobuffers(page);
}
-static int btrfs_permission(struct inode *inode, int mask)
+static int btrfs_permission(struct user_namespace *mnt_userns,
+ struct inode *inode, int mask)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
umode_t mode = inode->i_mode;
if (BTRFS_I(inode)->flags & BTRFS_INODE_READONLY)
return -EACCES;
}
- return generic_permission(inode, mask);
+ return generic_permission(&init_user_ns, inode, mask);
}
-static int btrfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
+static int btrfs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode)
{
struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
const char *comp = NULL;
u32 binode_flags;
- if (!inode_owner_or_capable(inode))
+ if (!inode_owner_or_capable(&init_user_ns, inode))
return -EPERM;
if (btrfs_root_readonly(root))
unsigned old_i_flags;
int ret = 0;
- if (!inode_owner_or_capable(inode))
+ if (!inode_owner_or_capable(&init_user_ns, inode))
return -EPERM;
if (btrfs_root_readonly(root))
BUG_ON(d_inode(victim->d_parent) != dir);
audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE);
- error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
+ error = inode_permission(&init_user_ns, dir, MAY_WRITE | MAY_EXEC);
if (error)
return error;
if (IS_APPEND(dir))
return -EPERM;
- if (check_sticky(dir, d_inode(victim)) || IS_APPEND(d_inode(victim)) ||
- IS_IMMUTABLE(d_inode(victim)) || IS_SWAPFILE(d_inode(victim)))
+ if (check_sticky(&init_user_ns, dir, d_inode(victim)) ||
+ IS_APPEND(d_inode(victim)) || IS_IMMUTABLE(d_inode(victim)) ||
+ IS_SWAPFILE(d_inode(victim)))
return -EPERM;
if (isdir) {
if (!d_is_dir(victim))
return -EEXIST;
if (IS_DEADDIR(dir))
return -ENOENT;
- return inode_permission(dir, MAY_WRITE | MAY_EXEC);
+ return inode_permission(&init_user_ns, dir, MAY_WRITE | MAY_EXEC);
}
/*
btrfs_info(BTRFS_I(file_inode(file))->root->fs_info,
"Snapshot src from another FS");
ret = -EXDEV;
- } else if (!inode_owner_or_capable(src_inode)) {
+ } else if (!inode_owner_or_capable(&init_user_ns, src_inode)) {
/*
* Subvolume creation is not restricted, but snapshots
* are limited to own subvolumes only
if (vol_args->flags & BTRFS_SUBVOL_RDONLY)
readonly = true;
if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {
- if (vol_args->size > PAGE_SIZE) {
+ u64 nums;
+
+ if (vol_args->size < sizeof(*inherit) ||
+ vol_args->size > PAGE_SIZE) {
ret = -EINVAL;
goto free_args;
}
ret = PTR_ERR(inherit);
goto free_args;
}
+
+ if (inherit->num_qgroups > PAGE_SIZE ||
+ inherit->num_ref_copies > PAGE_SIZE ||
+ inherit->num_excl_copies > PAGE_SIZE) {
+ ret = -EINVAL;
+ goto free_inherit;
+ }
+
+ nums = inherit->num_qgroups + 2 * inherit->num_ref_copies +
+ 2 * inherit->num_excl_copies;
+ if (vol_args->size != struct_size(inherit, qgroups, nums)) {
+ ret = -EINVAL;
+ goto free_inherit;
+ }
}
ret = __btrfs_ioctl_snap_create(file, vol_args->name, vol_args->fd,
u64 flags;
int ret = 0;
- if (!inode_owner_or_capable(inode))
+ if (!inode_owner_or_capable(&init_user_ns, inode))
return -EPERM;
ret = mnt_want_write_file(file);
ret = PTR_ERR(temp_inode);
goto out_put;
}
- ret = inode_permission(temp_inode, MAY_READ | MAY_EXEC);
+ ret = inode_permission(&init_user_ns, temp_inode,
+ MAY_READ | MAY_EXEC);
iput(temp_inode);
if (ret) {
ret = -EACCES;
if (root == dest)
goto out_dput;
- err = inode_permission(inode, MAY_WRITE | MAY_EXEC);
+ err = inode_permission(&init_user_ns, inode,
+ MAY_WRITE | MAY_EXEC);
if (err)
goto out_dput;
}
* running and allows defrag on files open in read-only mode.
*/
if (!capable(CAP_SYS_ADMIN) &&
- inode_permission(inode, MAY_WRITE)) {
+ inode_permission(&init_user_ns, inode, MAY_WRITE)) {
ret = -EPERM;
goto out;
}
int ret = 0;
int received_uuid_changed;
- if (!inode_owner_or_capable(inode))
+ if (!inode_owner_or_capable(&init_user_ns, inode))
return -EPERM;
ret = mnt_want_write_file(file);
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
+ const bool start_trans = (current->journal_info == NULL);
int ret;
- trans = btrfs_start_transaction(root, 2);
- if (IS_ERR(trans))
- return PTR_ERR(trans);
+ if (start_trans) {
+ /*
+ * 1 unit for inserting/updating/deleting the xattr
+ * 1 unit for the inode item update
+ */
+ trans = btrfs_start_transaction(root, 2);
+ if (IS_ERR(trans))
+ return PTR_ERR(trans);
+ } else {
+ /*
+ * This can happen when smack is enabled and a directory is being
+ * created. It happens through d_instantiate_new(), which calls
+ * smack_d_instantiate(), which in turn calls __vfs_setxattr() to
+ * set the transmute xattr (XATTR_NAME_SMACKTRANSMUTE) on the
+ * inode. We have already reserved space for the xattr and inode
+ * update at btrfs_mkdir(), so just use the transaction handle.
+ * We don't join or start a transaction, as that will reset the
+ * block_rsv of the handle and trigger a warning for the start
+ * case.
+ */
+ ASSERT(strncmp(name, XATTR_SECURITY_PREFIX,
+ XATTR_SECURITY_PREFIX_LEN) == 0);
+ trans = current->journal_info;
+ }
ret = btrfs_setxattr(trans, inode, name, value, size, flags);
if (ret)
ret = btrfs_update_inode(trans, root, BTRFS_I(inode));
BUG_ON(ret);
out:
- btrfs_end_transaction(trans);
+ if (start_trans)
+ btrfs_end_transaction(trans);
return ret;
}
}
static int btrfs_xattr_handler_set(const struct xattr_handler *handler,
+ struct user_namespace *mnt_userns,
struct dentry *unused, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
}
static int btrfs_xattr_handler_set_prop(const struct xattr_handler *handler,
+ struct user_namespace *mnt_userns,
struct dentry *unused, struct inode *inode,
const char *name, const void *value,
size_t size, int flags)
sector_t sector = 0;
struct blk_zone *zones = NULL;
unsigned int i, nreported = 0, nr_zones;
- unsigned int zone_sectors;
+ sector_t zone_sectors;
char *model, *emulated;
int ret;
u64 *bytenr_ret)
{
struct blk_zone zones[BTRFS_NR_SB_LOG_ZONES];
- unsigned int zone_sectors;
+ sector_t zone_sectors;
u32 sb_zone;
int ret;
u8 zone_sectors_shift;
return;
ordered->physical = physical;
- ordered->disk = bio->bi_disk;
- ordered->partno = bio->bi_partno;
+ ordered->disk = bio->bi_bdev->bd_disk;
+ ordered->partno = bio->bi_bdev->bd_partno;
btrfs_put_ordered_extent(ordered);
}
projects / linux-2.6-microblaze.git / commitdiff