gup_benchmark_init() is only called during initialization, mark it as
__init to save some memory.

Cc: John Hubbard <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Jérôme Glisse <[email protected]>
Cc: "Matthew Wilcox (Oracle)" <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Signed-off-by: Barry Song <[email protected]>
---
 mm/gup_benchmark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c
index 8b3e5b5..1d10553 100644
--- a/mm/gup_benchmark.c
+++ b/mm/gup_benchmark.c
@@ -199,7 +199,7 @@ static const struct file_operations gup_benchmark_fops = {
        .unlocked_ioctl = gup_benchmark_ioctl,
 };
 
-static int gup_benchmark_init(void)
+static int __init gup_benchmark_init(void)
 {
        debugfs_create_file_unsafe("gup_benchmark", 0600, NULL, NULL,
                                   &gup_benchmark_fops);
-- 
2.7.4

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