{
struct btrfs_fs_info *fs_info = root->fs_info;
- down_read(&fs_info->delayed_iput_sem);
spin_lock(&fs_info->delayed_iput_lock);
while (!list_empty(&fs_info->delayed_iputs)) {
struct btrfs_inode *inode;
spin_lock(&fs_info->delayed_iput_lock);
}
spin_unlock(&fs_info->delayed_iput_lock);
- up_read(&root->fs_info->delayed_iput_sem);
}
/*
return err;
}
-static int wait_snapshoting_atomic_t(atomic_t *a)
-{
- schedule();
- return 0;
-}
-
-static void wait_for_snapshot_creation(struct btrfs_root *root)
-{
- while (true) {
- int ret;
-
- ret = btrfs_start_write_no_snapshoting(root);
- if (ret)
- break;
- wait_on_atomic_t(&root->will_be_snapshoted,
- wait_snapshoting_atomic_t,
- TASK_UNINTERRUPTIBLE);
- }
-}
-
static int btrfs_setsize(struct inode *inode, struct iattr *attr)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
* truncation, it must capture all writes that happened before
* this truncation.
*/
- wait_for_snapshot_creation(root);
+ btrfs_wait_for_snapshot_creation(root);
ret = btrfs_cont_expand(inode, oldsize, newsize);
if (ret) {
btrfs_end_write_no_snapshoting(root);