From: Michal Hocko <mhocko@xxxxxxxx>
Subject: include/linux/gfp.h: fix ___GFP_NOLOCKDEP value
Igor Stoppa has noticed that __GFP_NOLOCKDEP can use a lower bit. At the
time 7e7844226f10 ("lockdep: allow to disable reclaim lockup detection")
was written we still had __GFP_OTHER_NODE but I have removed it in
41b6167e8f74 ("mm: get rid of __GFP_OTHER_NODE") and forgot to lower the
bit value. The current value is outside of __GFP_BITS_SHIFT so it cannot
be used actually.
Fixes: 7e7844226f10 ("lockdep: allow to disable reclaim lockup detection")
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Reported-by: Igor Stoppa <igor.stoppa@xxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/gfp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/gfp.h~include-linux-gfph-fix-___gfp_nolockdep-value include/linux/gfp.h
--- a/include/linux/gfp.h~include-linux-gfph-fix-___gfp_nolockdep-value
+++ a/include/linux/gfp.h
@@ -41,7 +41,7 @@ struct vm_area_struct;
#define ___GFP_WRITE 0x800000u
#define ___GFP_KSWAPD_RECLAIM 0x1000000u
#ifdef CONFIG_LOCKDEP
-#define ___GFP_NOLOCKDEP 0x4000000u
+#define ___GFP_NOLOCKDEP 0x2000000u
#else
#define ___GFP_NOLOCKDEP 0
#endif
_
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