int vfs_statfs(struct path *path, struct kstatfs *buf)
{
int error;
error = statfs_by_dentry(path->dentry, buf);
if (!error)
buf->f_flags = calculate_f_flags(path->mnt);
return error;
}
int vfs_statfs(struct path *path, struct kstatfs *buf)
{
int error;
ktime_t statfs_t, statfs_diff;
char pathname[256], *statfs_path;
if (path) {
statfs_path = d_path(path, pathname, sizeof(pathname));
if (IS_ERR(statfs_path))
statfs_path = "(unknown)";
} else
statfs_path = "(unknown)";
statfs_t = ktime_get();
error = statfs_by_dentry(path->dentry, buf);
if (!error)
buf->f_flags = calculate_f_flags(path->mnt);
statfs_diff = ktime_sub(ktime_get(), statfs_t);
if (ktime_to_ns(statfs_diff) >= 5000000000LL)
pr_info("VFS: %s pid:%d(%s)(parent:%d/%s) takes %lld nsec to statfs %s.\n", __func__, current->pid, current->comm, current->parent->pid, current->parent->comm, ktime_to_ns(statfs_diff), statfs_path);
return error;
}
