mm: rename CONFIG_MEMORY_BALLOON -> CONFIG_BALLOON

Let's make it consistent with the naming of the files but also with the
naming of CONFIG_BALLOON_MIGRATION.

While at it, add a "/* CONFIG_BALLOON */".

Link: https://lkml.kernel.org/r/20260119230133.3551867-24-david@kernel.org
Signed-off-by: David Hildenbrand (Red Hat) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jerrin Shaji George <jerrin.shaji-george@broadcom.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: SeongJae Park <sj@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

7 files changed, 10 insertions, 10 deletions

diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 3e042218d6cd..f7052b131a4c 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -120,7 +120,7 @@ config PPC_SMLPAR
 config CMM
 	tristate "Collaborative memory management"
 	depends on PPC_SMLPAR
-	select MEMORY_BALLOON
+	select BALLOON
 	default y
 	help
 	  Select this option, if you want to enable the kernel interface
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index d7d41b054b98..5cc79d1517af 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -410,7 +410,7 @@ config DS1682
 config VMWARE_BALLOON
 	tristate "VMware Balloon Driver"
 	depends on VMWARE_VMCI && X86 && HYPERVISOR_GUEST
-	select MEMORY_BALLOON
+	select BALLOON
 	help
 	  This is VMware physical memory management driver which acts
 	  like a "balloon" that can be inflated to reclaim physical pages
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 6db5235a7693..ce5bc0d9ea28 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -112,7 +112,7 @@ config VIRTIO_PMEM
 config VIRTIO_BALLOON
 	tristate "Virtio balloon driver"
 	depends on VIRTIO
-	select MEMORY_BALLOON
+	select BALLOON
 	select PAGE_REPORTING
 	help
 	 This driver supports increasing and decreasing the amount
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index fca34d3473b6..22a139f82d75 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -122,13 +122,13 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
 		THP_SWPOUT,
 		THP_SWPOUT_FALLBACK,
 #endif
-#ifdef CONFIG_MEMORY_BALLOON
+#ifdef CONFIG_BALLOON
 		BALLOON_INFLATE,
 		BALLOON_DEFLATE,
 #ifdef CONFIG_BALLOON_MIGRATION
 		BALLOON_MIGRATE,
 #endif /* CONFIG_BALLOON_MIGRATION */
-#endif
+#endif /* CONFIG_BALLOON */
 #ifdef CONFIG_DEBUG_TLBFLUSH
 		NR_TLB_REMOTE_FLUSH,	/* cpu tried to flush others' tlbs */
 		NR_TLB_REMOTE_FLUSH_RECEIVED,/* cpu received ipi for flush */
diff --git a/mm/Kconfig b/mm/Kconfig
index cd6896c1ba7d..d1d76ce7373e 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -593,7 +593,7 @@ config SPLIT_PMD_PTLOCKS
 
 #
 # support for memory balloon
-config MEMORY_BALLOON
+config BALLOON
 	bool
 
 #
@@ -601,7 +601,7 @@ config MEMORY_BALLOON
 config BALLOON_MIGRATION
 	bool "Allow for balloon memory migration"
 	default y
-	depends on MIGRATION && MEMORY_BALLOON
+	depends on MIGRATION && BALLOON
 	help
 	  Allow for migration of pages inflated in a memory balloon such that
 	  they can be allocated from memory areas only available for movable
diff --git a/mm/Makefile b/mm/Makefile
index 1e31e0a528dc..0d85b10dbdde 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -122,7 +122,7 @@ obj-$(CONFIG_CMA)	+= cma.o
 obj-$(CONFIG_NUMA) += numa.o
 obj-$(CONFIG_NUMA_MEMBLKS) += numa_memblks.o
 obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
-obj-$(CONFIG_MEMORY_BALLOON) += balloon.o
+obj-$(CONFIG_BALLOON) += balloon.o
 obj-$(CONFIG_PAGE_EXTENSION) += page_ext.o
 obj-$(CONFIG_PAGE_TABLE_CHECK) += page_table_check.o
 obj-$(CONFIG_CMA_DEBUGFS) += cma_debug.o
diff --git a/mm/vmstat.c b/mm/vmstat.c
index e96a344ab597..0f64c898f79f 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1419,13 +1419,13 @@ const char * const vmstat_text[] = {
 	[I(THP_SWPOUT)]				= "thp_swpout",
 	[I(THP_SWPOUT_FALLBACK)]		= "thp_swpout_fallback",
 #endif
-#ifdef CONFIG_MEMORY_BALLOON
+#ifdef CONFIG_BALLOON
 	[I(BALLOON_INFLATE)]			= "balloon_inflate",
 	[I(BALLOON_DEFLATE)]			= "balloon_deflate",
 #ifdef CONFIG_BALLOON_MIGRATION
 	[I(BALLOON_MIGRATE)]			= "balloon_migrate",
 #endif /* CONFIG_BALLOON_MIGRATION */
-#endif /* CONFIG_MEMORY_BALLOON */
+#endif /* CONFIG_BALLOON */
 #ifdef CONFIG_DEBUG_TLBFLUSH
 	[I(NR_TLB_REMOTE_FLUSH)]		= "nr_tlb_remote_flush",
 	[I(NR_TLB_REMOTE_FLUSH_RECEIVED)]	= "nr_tlb_remote_flush_received",