[126/227] mm, fault-injection: declare should_fail_alloc_page()

Commit Message

Andrew Morton March 22, 2022, 9:44 p.m. UTC

From: Vlastimil Babka <[e-mail]>
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/[e-mail]
Signed-off-by: Vlastimil Babka <[e-mail]>
Cc: Mel Gorman <[e-mail]>
Cc: Matthew Wilcox <[e-mail]>
Cc: David Hildenbrand <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 include/linux/fault-inject.h |    2 ++
 1 file changed, 2 insertions(+)

Patch

--- 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);