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-rw-r--r--arch/powerpc/platforms/powernv/memtrace.c2
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c2
-rw-r--r--drivers/acpi/acpi_memhotplug.c3
-rw-r--r--drivers/base/memory.c3
-rw-r--r--drivers/dax/kmem.c2
-rw-r--r--drivers/hv/hv_balloon.c2
-rw-r--r--drivers/s390/char/sclp_cmd.c2
-rw-r--r--drivers/virtio/virtio_mem.c2
-rw-r--r--drivers/xen/balloon.c2
-rw-r--r--include/linux/memory_hotplug.h16
-rw-r--r--mm/memory_hotplug.c14
11 files changed, 30 insertions, 20 deletions
diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c
index 13b369d2cc45..6828108486f8 100644
--- a/arch/powerpc/platforms/powernv/memtrace.c
+++ b/arch/powerpc/platforms/powernv/memtrace.c
@@ -224,7 +224,7 @@ static int memtrace_online(void)
ent->mem = 0;
}
- if (add_memory(ent->nid, ent->start, ent->size)) {
+ if (add_memory(ent->nid, ent->start, ent->size, MHP_NONE)) {
pr_err("Failed to add trace memory to node %d\n",
ent->nid);
ret += 1;
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 5d545b78111f..d8bbf0cc1601 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -606,7 +606,7 @@ static int dlpar_add_lmb(struct drmem_lmb *lmb)
block_sz = memory_block_size_bytes();
/* Add the memory */
- rc = __add_memory(lmb->nid, lmb->base_addr, block_sz);
+ rc = __add_memory(lmb->nid, lmb->base_addr, block_sz, MHP_NONE);
if (rc) {
invalidate_lmb_associativity_index(lmb);
return rc;
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index ad6e90fbc813..b02fd51e5589 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -194,7 +194,8 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
if (node < 0)
node = memory_add_physaddr_to_nid(info->start_addr);
- result = __add_memory(node, info->start_addr, info->length);
+ result = __add_memory(node, info->start_addr, info->length,
+ MHP_NONE);
/*
* If the memory block has been used by the kernel, add_memory()
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index adf828dfccf0..eef4ffb6122c 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -432,7 +432,8 @@ static ssize_t probe_store(struct device *dev, struct device_attribute *attr,
nid = memory_add_physaddr_to_nid(phys_addr);
ret = __add_memory(nid, phys_addr,
- MIN_MEMORY_BLOCK_SIZE * sections_per_block);
+ MIN_MEMORY_BLOCK_SIZE * sections_per_block,
+ MHP_NONE);
if (ret)
goto out;
diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c
index af04b6d1d263..b4368c5b6a0c 100644
--- a/drivers/dax/kmem.c
+++ b/drivers/dax/kmem.c
@@ -109,7 +109,7 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax)
* this as RAM automatically.
*/
rc = add_memory_driver_managed(numa_node, range.start,
- range_len(&range), kmem_name);
+ range_len(&range), kmem_name, MHP_NONE);
if (rc) {
dev_warn(dev, "mapping%d: %#llx-%#llx memory add failed\n",
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 32e3bc0aa665..3c0d52e24452 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -726,7 +726,7 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size,
nid = memory_add_physaddr_to_nid(PFN_PHYS(start_pfn));
ret = add_memory(nid, PFN_PHYS((start_pfn)),
- (HA_CHUNK << PAGE_SHIFT));
+ (HA_CHUNK << PAGE_SHIFT), MHP_NONE);
if (ret) {
pr_err("hot_add memory failed error is %d\n", ret);
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index a864b21af602..f6e97f0830f6 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -406,7 +406,7 @@ static void __init add_memory_merged(u16 rn)
if (!size)
goto skip_add;
for (addr = start; addr < start + size; addr += block_size)
- add_memory(0, addr, block_size);
+ add_memory(0, addr, block_size, MHP_NONE);
skip_add:
first_rn = rn;
num = 1;
diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
index 834b7c13ef3d..ed99e4335401 100644
--- a/drivers/virtio/virtio_mem.c
+++ b/drivers/virtio/virtio_mem.c
@@ -424,7 +424,7 @@ static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
dev_dbg(&vm->vdev->dev, "adding memory block: %lu\n", mb_id);
return add_memory_driver_managed(nid, addr, memory_block_size_bytes(),
- vm->resource_name);
+ vm->resource_name, MHP_NONE);
}
/*
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 51427c752b37..9f40a294d398 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -331,7 +331,7 @@ static enum bp_state reserve_additional_memory(void)
mutex_unlock(&balloon_mutex);
/* add_memory_resource() requires the device_hotplug lock */
lock_device_hotplug();
- rc = add_memory_resource(nid, resource);
+ rc = add_memory_resource(nid, resource, MHP_NONE);
unlock_device_hotplug();
mutex_lock(&balloon_mutex);
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 1504b4d5ae6c..33eb80fdba22 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -57,6 +57,12 @@ enum {
MMOP_ONLINE_MOVABLE,
};
+/* Flags for add_memory() and friends to specify memory hotplug details. */
+typedef int __bitwise mhp_t;
+
+/* No special request */
+#define MHP_NONE ((__force mhp_t)0)
+
/*
* Extended parameters for memory hotplug:
* altmap: alternative allocator for memmap array (optional)
@@ -339,11 +345,13 @@ extern void clear_zone_contiguous(struct zone *zone);
#ifdef CONFIG_MEMORY_HOTPLUG
extern void __ref free_area_init_core_hotplug(int nid);
-extern int __add_memory(int nid, u64 start, u64 size);
-extern int add_memory(int nid, u64 start, u64 size);
-extern int add_memory_resource(int nid, struct resource *resource);
+extern int __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
+extern int add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
+extern int add_memory_resource(int nid, struct resource *resource,
+ mhp_t mhp_flags);
extern int add_memory_driver_managed(int nid, u64 start, u64 size,
- const char *resource_name);
+ const char *resource_name,
+ mhp_t mhp_flags);
extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn,
unsigned long nr_pages,
struct vmem_altmap *altmap, int migratetype);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9a7193970e77..dba71bc34daa 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1039,7 +1039,7 @@ static int online_memory_block(struct memory_block *mem, void *arg)
*
* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG
*/
-int __ref add_memory_resource(int nid, struct resource *res)
+int __ref add_memory_resource(int nid, struct resource *res, mhp_t mhp_flags)
{
struct mhp_params params = { .pgprot = PAGE_KERNEL };
u64 start, size;
@@ -1119,7 +1119,7 @@ error:
}
/* requires device_hotplug_lock, see add_memory_resource() */
-int __ref __add_memory(int nid, u64 start, u64 size)
+int __ref __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags)
{
struct resource *res;
int ret;
@@ -1128,18 +1128,18 @@ int __ref __add_memory(int nid, u64 start, u64 size)
if (IS_ERR(res))
return PTR_ERR(res);
- ret = add_memory_resource(nid, res);
+ ret = add_memory_resource(nid, res, mhp_flags);
if (ret < 0)
release_memory_resource(res);
return ret;
}
-int add_memory(int nid, u64 start, u64 size)
+int add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags)
{
int rc;
lock_device_hotplug();
- rc = __add_memory(nid, start, size);
+ rc = __add_memory(nid, start, size, mhp_flags);
unlock_device_hotplug();
return rc;
@@ -1168,7 +1168,7 @@ EXPORT_SYMBOL_GPL(add_memory);
* "System RAM ($DRIVER)".
*/
int add_memory_driver_managed(int nid, u64 start, u64 size,
- const char *resource_name)
+ const char *resource_name, mhp_t mhp_flags)
{
struct resource *res;
int rc;
@@ -1186,7 +1186,7 @@ int add_memory_driver_managed(int nid, u64 start, u64 size,
goto out_unlock;
}
- rc = add_memory_resource(nid, res);
+ rc = add_memory_resource(nid, res, mhp_flags);
if (rc < 0)
release_memory_resource(res);
generated by cgit (git 2.34.1) at 2024-05-28 13:22:35 +0000