diff options
| author | Israel Batista <linux@israelbatista.dev.br> | 2025-10-29 19:56:30 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-11-16 17:28:27 -0800 |
| commit | 8bc7ba3d265d6ee698de4b1941b7e8f7d91a0562 (patch) | |
| tree | c50e000a798daa085b7664a34d4c6bc9e5ef149f /include | |
| parent | 1a4f70f6851a1916c4f0e52731c7ecfe99bf36e6 (diff) | |
mm: change type of state in struct memory_block
The state of a memory block should be restricted to values specified in
the documentation of the memory hotplug API. However, since the state
field in the memory_block struct was defined as an unsigned long, this
restriction was not enforced at compile time.
With the introduction of the enum memory_block_state, it is now possible
to incorporate the desired semantics in the field declaration and enforce
these restrictions at compile time.
[akpm@linux-foundation.org: fix whitespace, per Randy]
Link: https://lkml.kernel.org/r/20251029195617.2210700-3-linux@israelbatista.dev.br
Signed-off-by: Israel Batista <linux@israelbatista.dev.br>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Omar Sandoval <osandov@osandov.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memory.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/memory.h b/include/linux/memory.h index f4e358477c6a..ca20cbdd71f2 100644 --- a/include/linux/memory.h +++ b/include/linux/memory.h @@ -78,7 +78,7 @@ enum memory_block_state { struct memory_block { unsigned long start_section_nr; - unsigned long state; /* serialized by the dev->lock */ + enum memory_block_state state; /* serialized by the dev->lock */ int online_type; /* for passing data to online routine */ int nid; /* NID for this memory block */ /* |