#include <linux/syscalls.h>
#include <linux/mempolicy.h>
#include <linux/hugetlb.h>
+#include <linux/sched.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
if (!file)
return -EBADF;
- if (file->f_mapping->a_ops->get_xip_page) {
+ if (file->f_mapping->a_ops->get_xip_mem) {
/* no bad return value, but ignore advice */
return 0;
}
* Application no longer needs these pages. If the pages are dirty,
* it's OK to just throw them away. The app will be more careful about
* data it wants to keep. Be sure to free swap resources too. The
- * zap_page_range call sets things up for refill_inactive to actually free
+ * zap_page_range call sets things up for shrink_active_list to actually free
* these pages later if no one else has touched them in the meantime,
* although we could add these pages to a global reuse list for
- * refill_inactive to pick up before reclaiming other pages.
+ * shrink_active_list to pick up before reclaiming other pages.
*
* NB: This interface discards data rather than pushes it out to swap,
* as some implementations do. This has performance implications for
struct vm_area_struct * vma, *prev;
int unmapped_error = 0;
int error = -EINVAL;
+ int write;
size_t len;
- if (madvise_need_mmap_write(behavior))
+ write = madvise_need_mmap_write(behavior);
+ if (write)
down_write(¤t->mm->mmap_sem);
else
down_read(¤t->mm->mmap_sem);
vma = find_vma(current->mm, start);
}
out:
- if (madvise_need_mmap_write(behavior))
+ if (write)
up_write(¤t->mm->mmap_sem);
else
up_read(¤t->mm->mmap_sem);