Let's determine the target nid only once in case we have none specified -
usually, we'll end up with node 0 either way.
Cc: "Michael S. Tsirkin" <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: Pankaj Gupta <[email protected]>
Signed-off-by: David Hildenbrand <[email protected]>
---
drivers/virtio/virtio_mem.c | 28 +++++++++++-----------------
1 file changed, 11 insertions(+), 17 deletions(-)
diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
index ba4de598f663..a1f5bf7a571a 100644
--- a/drivers/virtio/virtio_mem.c
+++ b/drivers/virtio/virtio_mem.c
@@ -70,7 +70,7 @@ struct virtio_mem {
/* The device block size (for communicating with the device). */
uint64_t device_block_size;
- /* The translated node id. NUMA_NO_NODE in case not specified. */
+ /* The determined node id for all memory of the device. */
int nid;
/* Physical start address of the memory region. */
uint64_t addr;
@@ -406,10 +406,6 @@ static int virtio_mem_sb_bitmap_prepare_next_mb(struct virtio_mem *vm)
static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
{
const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
- int nid = vm->nid;
-
- if (nid == NUMA_NO_NODE)
- nid = memory_add_physaddr_to_nid(addr);
/*
* When force-unloading the driver and we still have memory added to
@@ -423,7 +419,8 @@ 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(),
+ return add_memory_driver_managed(vm->nid, addr,
+ memory_block_size_bytes(),
vm->resource_name,
MEMHP_MERGE_RESOURCE);
}
@@ -440,13 +437,9 @@ static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
static int virtio_mem_mb_remove(struct virtio_mem *vm, unsigned long mb_id)
{
const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
- int nid = vm->nid;
-
- if (nid == NUMA_NO_NODE)
- nid = memory_add_physaddr_to_nid(addr);
dev_dbg(&vm->vdev->dev, "removing memory block: %lu\n", mb_id);
- return remove_memory(nid, addr, memory_block_size_bytes());
+ return remove_memory(vm->nid, addr, memory_block_size_bytes());
}
/*
@@ -461,14 +454,11 @@ static int virtio_mem_mb_offline_and_remove(struct virtio_mem *vm,
unsigned long mb_id)
{
const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
- int nid = vm->nid;
-
- if (nid == NUMA_NO_NODE)
- nid = memory_add_physaddr_to_nid(addr);
dev_dbg(&vm->vdev->dev, "offlining and removing memory block: %lu\n",
mb_id);
- return offline_and_remove_memory(nid, addr, memory_block_size_bytes());
+ return offline_and_remove_memory(vm->nid, addr,
+ memory_block_size_bytes());
}
/*
@@ -1659,6 +1649,10 @@ static int virtio_mem_init(struct virtio_mem *vm)
virtio_cread_le(vm->vdev, struct virtio_mem_config, region_size,
&vm->region_size);
+ /* Determine the nid for the device based on the lowest address. */
+ if (vm->nid == NUMA_NO_NODE)
+ vm->nid = memory_add_physaddr_to_nid(vm->addr);
+
/*
* We always hotplug memory in memory block granularity. This way,
* we have to wait for exactly one memory block to online.
@@ -1707,7 +1701,7 @@ static int virtio_mem_init(struct virtio_mem *vm)
memory_block_size_bytes());
dev_info(&vm->vdev->dev, "subblock size: 0x%llx",
(unsigned long long)vm->subblock_size);
- if (vm->nid != NUMA_NO_NODE)
+ if (vm->nid != NUMA_NO_NODE && IS_ENABLED(CONFIG_NUMA))
dev_info(&vm->vdev->dev, "nid: %d", vm->nid);
return 0;
--
2.26.2
On Mon, Oct 12, 2020 at 02:52:55PM +0200, David Hildenbrand wrote:
>Let's determine the target nid only once in case we have none specified -
>usually, we'll end up with node 0 either way.
>
>Cc: "Michael S. Tsirkin" <[email protected]>
>Cc: Jason Wang <[email protected]>
>Cc: Pankaj Gupta <[email protected]>
>Signed-off-by: David Hildenbrand <[email protected]>
Reviewed-by: Wei Yang <[email protected]>
>---
> drivers/virtio/virtio_mem.c | 28 +++++++++++-----------------
> 1 file changed, 11 insertions(+), 17 deletions(-)
>
>diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
>index ba4de598f663..a1f5bf7a571a 100644
>--- a/drivers/virtio/virtio_mem.c
>+++ b/drivers/virtio/virtio_mem.c
>@@ -70,7 +70,7 @@ struct virtio_mem {
>
> /* The device block size (for communicating with the device). */
> uint64_t device_block_size;
>- /* The translated node id. NUMA_NO_NODE in case not specified. */
>+ /* The determined node id for all memory of the device. */
> int nid;
> /* Physical start address of the memory region. */
> uint64_t addr;
>@@ -406,10 +406,6 @@ static int virtio_mem_sb_bitmap_prepare_next_mb(struct virtio_mem *vm)
> static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
> {
> const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
>- int nid = vm->nid;
>-
>- if (nid == NUMA_NO_NODE)
>- nid = memory_add_physaddr_to_nid(addr);
>
> /*
> * When force-unloading the driver and we still have memory added to
>@@ -423,7 +419,8 @@ 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(),
>+ return add_memory_driver_managed(vm->nid, addr,
>+ memory_block_size_bytes(),
> vm->resource_name,
> MEMHP_MERGE_RESOURCE);
> }
>@@ -440,13 +437,9 @@ static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
> static int virtio_mem_mb_remove(struct virtio_mem *vm, unsigned long mb_id)
> {
> const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
>- int nid = vm->nid;
>-
>- if (nid == NUMA_NO_NODE)
>- nid = memory_add_physaddr_to_nid(addr);
>
> dev_dbg(&vm->vdev->dev, "removing memory block: %lu\n", mb_id);
>- return remove_memory(nid, addr, memory_block_size_bytes());
>+ return remove_memory(vm->nid, addr, memory_block_size_bytes());
> }
>
> /*
>@@ -461,14 +454,11 @@ static int virtio_mem_mb_offline_and_remove(struct virtio_mem *vm,
> unsigned long mb_id)
> {
> const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
>- int nid = vm->nid;
>-
>- if (nid == NUMA_NO_NODE)
>- nid = memory_add_physaddr_to_nid(addr);
>
> dev_dbg(&vm->vdev->dev, "offlining and removing memory block: %lu\n",
> mb_id);
>- return offline_and_remove_memory(nid, addr, memory_block_size_bytes());
>+ return offline_and_remove_memory(vm->nid, addr,
>+ memory_block_size_bytes());
> }
>
> /*
>@@ -1659,6 +1649,10 @@ static int virtio_mem_init(struct virtio_mem *vm)
> virtio_cread_le(vm->vdev, struct virtio_mem_config, region_size,
> &vm->region_size);
>
>+ /* Determine the nid for the device based on the lowest address. */
>+ if (vm->nid == NUMA_NO_NODE)
>+ vm->nid = memory_add_physaddr_to_nid(vm->addr);
>+
> /*
> * We always hotplug memory in memory block granularity. This way,
> * we have to wait for exactly one memory block to online.
>@@ -1707,7 +1701,7 @@ static int virtio_mem_init(struct virtio_mem *vm)
> memory_block_size_bytes());
> dev_info(&vm->vdev->dev, "subblock size: 0x%llx",
> (unsigned long long)vm->subblock_size);
>- if (vm->nid != NUMA_NO_NODE)
>+ if (vm->nid != NUMA_NO_NODE && IS_ENABLED(CONFIG_NUMA))
> dev_info(&vm->vdev->dev, "nid: %d", vm->nid);
>
> return 0;
>--
>2.26.2
--
Wei Yang
Help you, Help me
> Let's determine the target nid only once in case we have none specified -
> usually, we'll end up with node 0 either way.
>
> Cc: "Michael S. Tsirkin" <[email protected]>
> Cc: Jason Wang <[email protected]>
> Cc: Pankaj Gupta <[email protected]>
> Signed-off-by: David Hildenbrand <[email protected]>
> ---
> drivers/virtio/virtio_mem.c | 28 +++++++++++-----------------
> 1 file changed, 11 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
> index ba4de598f663..a1f5bf7a571a 100644
> --- a/drivers/virtio/virtio_mem.c
> +++ b/drivers/virtio/virtio_mem.c
> @@ -70,7 +70,7 @@ struct virtio_mem {
>
> /* The device block size (for communicating with the device). */
> uint64_t device_block_size;
> - /* The translated node id. NUMA_NO_NODE in case not specified. */
> + /* The determined node id for all memory of the device. */
> int nid;
> /* Physical start address of the memory region. */
> uint64_t addr;
> @@ -406,10 +406,6 @@ static int virtio_mem_sb_bitmap_prepare_next_mb(struct virtio_mem *vm)
> static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
> {
> const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
> - int nid = vm->nid;
> -
> - if (nid == NUMA_NO_NODE)
> - nid = memory_add_physaddr_to_nid(addr);
>
> /*
> * When force-unloading the driver and we still have memory added to
> @@ -423,7 +419,8 @@ 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(),
> + return add_memory_driver_managed(vm->nid, addr,
> + memory_block_size_bytes(),
> vm->resource_name,
> MEMHP_MERGE_RESOURCE);
> }
> @@ -440,13 +437,9 @@ static int virtio_mem_mb_add(struct virtio_mem *vm, unsigned long mb_id)
> static int virtio_mem_mb_remove(struct virtio_mem *vm, unsigned long mb_id)
> {
> const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
> - int nid = vm->nid;
> -
> - if (nid == NUMA_NO_NODE)
> - nid = memory_add_physaddr_to_nid(addr);
>
> dev_dbg(&vm->vdev->dev, "removing memory block: %lu\n", mb_id);
> - return remove_memory(nid, addr, memory_block_size_bytes());
> + return remove_memory(vm->nid, addr, memory_block_size_bytes());
> }
>
> /*
> @@ -461,14 +454,11 @@ static int virtio_mem_mb_offline_and_remove(struct virtio_mem *vm,
> unsigned long mb_id)
> {
> const uint64_t addr = virtio_mem_mb_id_to_phys(mb_id);
> - int nid = vm->nid;
> -
> - if (nid == NUMA_NO_NODE)
> - nid = memory_add_physaddr_to_nid(addr);
>
> dev_dbg(&vm->vdev->dev, "offlining and removing memory block: %lu\n",
> mb_id);
> - return offline_and_remove_memory(nid, addr, memory_block_size_bytes());
> + return offline_and_remove_memory(vm->nid, addr,
> + memory_block_size_bytes());
> }
>
> /*
> @@ -1659,6 +1649,10 @@ static int virtio_mem_init(struct virtio_mem *vm)
> virtio_cread_le(vm->vdev, struct virtio_mem_config, region_size,
> &vm->region_size);
>
> + /* Determine the nid for the device based on the lowest address. */
> + if (vm->nid == NUMA_NO_NODE)
> + vm->nid = memory_add_physaddr_to_nid(vm->addr);
> +
> /*
> * We always hotplug memory in memory block granularity. This way,
> * we have to wait for exactly one memory block to online.
> @@ -1707,7 +1701,7 @@ static int virtio_mem_init(struct virtio_mem *vm)
> memory_block_size_bytes());
> dev_info(&vm->vdev->dev, "subblock size: 0x%llx",
> (unsigned long long)vm->subblock_size);
> - if (vm->nid != NUMA_NO_NODE)
> + if (vm->nid != NUMA_NO_NODE && IS_ENABLED(CONFIG_NUMA))
> dev_info(&vm->vdev->dev, "nid: %d", vm->nid);
>
> return 0;
Reviewed-by: Pankaj Gupta <[email protected]>