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mm: add stubs for PFNMAP memory failure registration functions

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Add stubs to address CONFIG_MEMORY_FAILURE disabled.

Suggested-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20260115202849.2921-2-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
This commit is contained in:
Ankit Agrawal
2026-01-15 20:28:48 +00:00
committed by Alex Williamson
parent 1c588bca3b
commit 205e6d17cd
1 changed files with 11 additions and 2 deletions
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13
include/linux/memory-failure.h
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@@ -4,8 +4,6 @@
#include <linux/interval_tree.h>
struct pfn_address_space;
struct pfn_address_space {
struct interval_tree_node node;
struct address_space *mapping;
@@ -13,7 +11,18 @@ struct pfn_address_space {
unsigned long pfn, pgoff_t *pgoff);
};
#ifdef CONFIG_MEMORY_FAILURE
int register_pfn_address_space(struct pfn_address_space *pfn_space);
void unregister_pfn_address_space(struct pfn_address_space *pfn_space);
#else
static inline int register_pfn_address_space(struct pfn_address_space *pfn_space)
{
return -EOPNOTSUPP;
}
static inline void unregister_pfn_address_space(struct pfn_address_space *pfn_space)
{
}
#endif /* CONFIG_MEMORY_FAILURE */
#endif /* _LINUX_MEMORY_FAILURE_H */