#include <linux/cma.h>
#include <linux/migrate.h>
#include <linux/nospec.h>
+#include <linux/delayacct.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
pte = huge_ptep_get(ptep);
old_page = pte_page(pte);
+ delayacct_wpcopy_start();
+
retry_avoidcopy:
/*
* If no-one else is actually using this page, we're the exclusive
page_move_anon_rmap(old_page, vma);
if (likely(!unshare))
set_huge_ptep_writable(vma, haddr, ptep);
+
+ delayacct_wpcopy_end();
return 0;
}
VM_BUG_ON_PAGE(PageAnon(old_page) && PageAnonExclusive(old_page),
* race occurs while re-acquiring page table
* lock, and our job is done.
*/
+ delayacct_wpcopy_end();
return 0;
}
put_page(old_page);
spin_lock(ptl); /* Caller expects lock to be held */
+
+ delayacct_wpcopy_end();
return ret;
}