struct address_space *mapping;
unsigned long index;
struct inode *inode;
- bool unlock_mutex = false;
BUG_ON(!PageLocked(page));
mapping = page->mapping;
* we've taken the spinlock, because shmem_unuse_inode() will
* prune a !swapped inode from the swaplist under both locks.
*/
- if (swap.val && list_empty(&info->swaplist)) {
+ if (swap.val) {
mutex_lock(&shmem_swaplist_mutex);
- /* move instead of add in case we're racing */
- list_move_tail(&info->swaplist, &shmem_swaplist);
- unlock_mutex = true;
+ if (list_empty(&info->swaplist))
+ list_add_tail(&info->swaplist, &shmem_swaplist);
}
spin_lock(&info->lock);
- if (unlock_mutex)
+ if (swap.val)
mutex_unlock(&shmem_swaplist_mutex);
if (index >= info->next_index) {