proc: fix PG_locked reporting in /proc/kpageflags

Expr always evaluates to zero.

Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

diff --git a/fs/proc/page.c b/fs/proc/page.c
index 767d95a6d1b1bfdd713226915fb20bcca921347d..2d1345112a42d83ea0317dcd551e4766fb879bb8 100644 (file)
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -107,7 +107,7 @@ static ssize_t kpageflags_read(struct file *file, char __user *buf,
                else
                        kflags = ppage->flags;
 
-               uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
+               uflags = kpf_copy_bit(kflags, KPF_LOCKED, PG_locked) |
                        kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
                        kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
                        kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |