From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm, fault-injection: declare should_fail_alloc_page()
The mm/ directory can almost fully be built with W=1, which would help in
local development. One remaining issue is missing prototype for
should_fail_alloc_page(). Thus add it next to the should_failslab()
prototype.
Note the previous attempt by commit f7173090033c ("mm/page_alloc: make
should_fail_alloc_page() static") had to be reverted by commit
54aa386661fe as it caused an unresolved symbol error with
CONFIG_DEBUG_INFO_BTF=y
Link: https://lkml.kernel.org/r/20220314165724.16071-1-vbabka@xxxxxxx
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/fault-inject.h | 2 ++
1 file changed, 2 insertions(+)
--- a/include/linux/fault-inject.h~mm-fault-injection-declare-should_fail_alloc_page
+++ a/include/linux/fault-inject.h
@@ -64,6 +64,8 @@ static inline struct dentry *fault_creat
struct kmem_cache;
+bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order);
+
int should_failslab(struct kmem_cache *s, gfp_t gfpflags);
#ifdef CONFIG_FAILSLAB
extern bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags);
_
