/* this is common implementation of create_object method of file plugin
*/
int reiser4_create_object_common(struct inode *object, struct inode *parent,
reiser4_object_create_data * data)
{
reiser4_block_nr reserve;
assert("nikita-744", object != NULL);
assert("nikita-745", parent != NULL);
assert("nikita-747", data != NULL);
assert("nikita-748", reiser4_inode_get_flag(object, REISER4_NO_SD));
reserve = estimate_create_common(object);
if (reiser4_grab_space(reserve, BA_CAN_COMMIT))
return RETERR(-ENOSPC);
return write_sd_by_inode_common(object);
}
/*
* common sync method for regular files.
*
* We are trying to be smart here. Instead of committing all atoms (original
* solution), we scan dirty pages of this file and commit all atoms they are
* part of.
*
* Situation is complicated by anonymous pages: i.e., extent-less pages
* dirtied through mmap. Fortunately sys_fsync() first calls
* filemap_fdatawrite() that will ultimately call reiser4_writepages(), insert
* all missing extents and capture anonymous pages.
*/
int reiser4_sync_file_common(struct file *file,
struct dentry *dentry, int datasync)
{
reiser4_context *ctx;
txn_atom *atom;
reiser4_block_nr reserve;
ctx = reiser4_init_context(dentry->d_inode->i_sb);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
reserve = estimate_update_common(dentry->d_inode);
if (reiser4_grab_space(reserve, BA_CAN_COMMIT)) {
reiser4_exit_context(ctx);
return RETERR(-ENOSPC);
}
write_sd_by_inode_common(dentry->d_inode);
atom = get_current_atom_locked();
spin_lock_txnh(ctx->trans);
force_commit_atom(ctx->trans);
reiser4_exit_context(ctx);
return 0;
}
