+ mm-fault-injection-declare-should_fail_alloc_page.patch added to -mm tree

+ mm-fault-injection-declare-should_fail_alloc_page.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm, fault-injection: declare should_fail_alloc_page()
has been added to the -mm tree.  Its filename is
     mm-fault-injection-declare-should_fail_alloc_page.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-fault-injection-declare-should_fail_alloc_page.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-fault-injection-declare-should_fail_alloc_page.patch

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------------------------------------------------------
From: Vlastimil Babka <vbabka@suse.cz>
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@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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);
_

Patches currently in -mm which might be from vbabka@suse.cz are

mm-fault-injection-declare-should_fail_alloc_page.patch