#include <linux/secretmem.h>
#include <linux/set_memory.h>
#include <linux/sched/signal.h>
+#include <linux/refcount.h>
#include <uapi/linux/magic.h>
MODULE_PARM_DESC(secretmem_enable,
"Enable secretmem and memfd_secret(2) system call");
-static atomic_t secretmem_users;
+static refcount_t secretmem_users;
bool secretmem_active(void)
{
- return !!atomic_read(&secretmem_users);
+ return !!refcount_read(&secretmem_users);
}
static vm_fault_t secretmem_fault(struct vm_fault *vmf)
static int secretmem_release(struct inode *inode, struct file *file)
{
- atomic_dec(&secretmem_users);
+ refcount_dec(&secretmem_users);
return 0;
}
file->f_flags |= O_LARGEFILE;
fd_install(fd, file);
- atomic_inc(&secretmem_users);
+ refcount_inc(&secretmem_users);
return fd;
err_put_fd: