Commit 5da96bdd authored by Mel Gorman's avatar Mel Gorman Committed by Linus Torvalds

mm/vmalloc: include header for prototype of set_iounmap_nonlazy

make W=1 generates the following warning for mm/vmalloc.c

  mm/vmalloc.c:1599:6: warning: no previous prototype for `set_iounmap_nonlazy' [-Wmissing-prototypes]
   void set_iounmap_nonlazy(void)
        ^~~~~~~~~~~~~~~~~~~

This is an arch-generic function only used by x86.  On other arches, it's
dead code.  Include the header with the definition and make it x86-64
specific.

Link: https://lkml.kernel.org/r/20210520084809.8576-3-mgorman@techsingularity.netSigned-off-by: default avatarMel Gorman <mgorman@techsingularity.net>
Reviewed-by: default avatarYang Shi <shy828301@gmail.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f611fab7
......@@ -25,6 +25,7 @@
#include <linux/notifier.h>
#include <linux/rbtree.h>
#include <linux/xarray.h>
#include <linux/io.h>
#include <linux/rcupdate.h>
#include <linux/pfn.h>
#include <linux/kmemleak.h>
......@@ -1607,6 +1608,7 @@ static DEFINE_MUTEX(vmap_purge_lock);
/* for per-CPU blocks */
static void purge_fragmented_blocks_allcpus(void);
#ifdef CONFIG_X86_64
/*
* called before a call to iounmap() if the caller wants vm_area_struct's
* immediately freed.
......@@ -1615,6 +1617,7 @@ void set_iounmap_nonlazy(void)
{
atomic_long_set(&vmap_lazy_nr, lazy_max_pages()+1);
}
#endif /* CONFIG_X86_64 */
/*
* Purges all lazily-freed vmap areas.
......
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