SeongJae Park 9ecd2f839b mm/madvise: use is_memory_failure() from madvise_do_behavior()
Patch series "mm/madvise: cleanup requests validations and classifications".

Cleanup madvise entry level code for cleaner request validations and
classifications.


This patch (of 4):

To reduce redundant open-coded checks of CONFIG_MEMORY_FAILURE and
MADV_{HWPOISON,SOFT_OFFLINE} in madvise_[un]lock(), is_memory_failure() is
introduced.  madvise_do_behavior() is still doing the same open-coded
check, though.  Use is_memory_failure() instead.

To avoid build failure on !CONFIG_MEMORY_FAILURE case, implement an empty
madvise_inject_error() under the config.  Also move the definition of
is_memory_failure() inside #ifdef CONFIG_MEMORY_FAILURE clause for
madvise_inject_error() definition, to reduce duplicated ifdef clauses.

Link: https://lkml.kernel.org/r/20250312164750.59215-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20250312164750.59215-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liam R. Howlett <howlett@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-17 22:07:03 -07:00
2024-09-01 20:43:24 -07:00
2025-02-04 11:27:45 -05:00
2022-09-28 09:02:20 +02:00
2025-03-16 22:06:01 -07:00
2025-03-09 13:45:25 -10:00
2024-03-18 03:36:32 -06:00

Linux kernel
============

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