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authorMel Gorman <mgorman@techsingularity.net>2021-07-01 04:53:23 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-01 21:06:02 +0300
commit5da96bdd93ed732685fb511d9889d3f6c5717fad (patch)
tree42bb5a08cb75e930e814c91865e45db20a53a44a
parentf611fab71005af2d726033697e8abda0ee0994e8 (diff)
downloadlinux-5da96bdd93ed732685fb511d9889d3f6c5717fad.tar.xz
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.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Reviewed-by: Yang Shi <shy828301@gmail.com> Acked-by: Vlastimil 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: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/vmalloc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 71dd29fe618b..d5cd52805149 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -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.