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* [PATCH v2 0/6] memblock: cleanup memblock_free interface
@ 2021-09-30 18:50 Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 1/6] arch_numa: simplify numa_distance allocation Mike Rapoport
                   ` (6 more replies)
  0 siblings, 7 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

Hi,

Following the discussion on [1] this is the fix for memblock freeing APIs
mismatch. 

The first patch is a cleanup of numa_distance allocation in arch_numa I've
spotted during the conversion.
The second patch is a fix for Xen memory freeing on some of the error
paths.

I agree with Christophe that doing step by step makes the thing easier to
review, so the patches 3-6 do the actual cleanup step by step.

This time I used stricter coccinelle scripts so that only straightforward
uses would get converted.

There still a couple of (void *) castings for the cases when a virtual
address has unsigned long type rather than a pointer type, like e.g
initrd_start.

Since scripts/get_maintainer.pl returned more than 100 addresses I've
trimmed the distribution list only to the relevant lists.

Juergen and Shahab, I didn't keep your Reviewed-by because the patches are
a bit different this time.

v2:
* split changes into several patches
* use stricter coccinelle scripts 

[1] https://lore.kernel.org/all/CAHk-=wj9k4LZTz+svCxLYs5Y1=+yKrbAUArH1+ghyG3OLd8VVg@mail.gmail.com

Mike Rapoport (6):
  arch_numa: simplify numa_distance allocation
  xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer
  memblock: drop memblock_free_early_nid() and memblock_free_early()
  memblock: stop aliasing __memblock_free_late with memblock_free_late
  memblock: rename memblock_free to memblock_phys_free
  memblock: use memblock_free for freeing virtual pointers

 arch/alpha/kernel/core_irongate.c         |  2 +-
 arch/arc/mm/init.c                        |  2 +-
 arch/arm/mach-hisi/platmcpm.c             |  2 +-
 arch/arm/mm/init.c                        |  2 +-
 arch/arm64/mm/mmu.c                       |  4 ++--
 arch/mips/mm/init.c                       |  2 +-
 arch/mips/sgi-ip30/ip30-setup.c           |  6 +++---
 arch/powerpc/kernel/dt_cpu_ftrs.c         |  4 ++--
 arch/powerpc/kernel/paca.c                |  8 ++++----
 arch/powerpc/kernel/setup-common.c        |  2 +-
 arch/powerpc/kernel/setup_64.c            |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  2 +-
 arch/powerpc/platforms/pseries/svm.c      |  3 +--
 arch/riscv/kernel/setup.c                 |  4 ++--
 arch/s390/kernel/setup.c                  |  8 ++++----
 arch/s390/kernel/smp.c                    |  4 ++--
 arch/s390/kernel/uv.c                     |  2 +-
 arch/s390/mm/kasan_init.c                 |  2 +-
 arch/sh/boards/mach-ap325rxa/setup.c      |  2 +-
 arch/sh/boards/mach-ecovec24/setup.c      |  4 ++--
 arch/sh/boards/mach-kfr2r09/setup.c       |  2 +-
 arch/sh/boards/mach-migor/setup.c         |  2 +-
 arch/sh/boards/mach-se/7724/setup.c       |  4 ++--
 arch/sparc/kernel/smp_64.c                |  2 +-
 arch/um/kernel/mem.c                      |  2 +-
 arch/x86/kernel/setup.c                   |  4 ++--
 arch/x86/kernel/setup_percpu.c            |  2 +-
 arch/x86/mm/init.c                        |  2 +-
 arch/x86/mm/kasan_init_64.c               |  4 ++--
 arch/x86/mm/numa.c                        |  2 +-
 arch/x86/mm/numa_emulation.c              |  2 +-
 arch/x86/xen/mmu_pv.c                     |  6 +++---
 arch/x86/xen/p2m.c                        |  2 +-
 arch/x86/xen/setup.c                      |  6 +++---
 drivers/base/arch_numa.c                  | 10 ++++------
 drivers/firmware/efi/memmap.c             |  2 +-
 drivers/macintosh/smu.c                   |  2 +-
 drivers/of/kexec.c                        |  3 +--
 drivers/of/of_reserved_mem.c              |  5 +++--
 drivers/s390/char/sclp_early.c            |  2 +-
 drivers/usb/early/xhci-dbc.c              | 10 +++++-----
 drivers/xen/swiotlb-xen.c                 |  2 +-
 include/linux/memblock.h                  | 23 +++--------------------
 init/initramfs.c                          |  2 +-
 init/main.c                               |  2 +-
 kernel/dma/swiotlb.c                      |  2 +-
 kernel/printk/printk.c                    |  4 ++--
 lib/bootconfig.c                          |  2 +-
 lib/cpumask.c                             |  2 +-
 mm/cma.c                                  |  2 +-
 mm/memblock.c                             | 22 +++++++++++-----------
 mm/memory_hotplug.c                       |  2 +-
 mm/percpu.c                               |  8 ++++----
 mm/sparse.c                               |  2 +-
 54 files changed, 99 insertions(+), 119 deletions(-)


base-commit: 5816b3e6577eaa676ceb00a848f0fd65fe2adc29
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 1/6] arch_numa: simplify numa_distance allocation
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
@ 2021-09-30 18:50 ` Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 2/6] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer Mike Rapoport
                   ` (5 subsequent siblings)
  6 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

Memory allocation of numa_distance uses memblock_phys_alloc_range() without
actual range limits, converts the returned physical address to virtual and
then only uses the virtual address for further initialization.

Simplify this by replacing memblock_phys_alloc_range() with
memblock_alloc().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 drivers/base/arch_numa.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index 00fb4120a5b3..f6d0efd01188 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -275,15 +275,13 @@ void __init numa_free_distance(void)
 static int __init numa_alloc_distance(void)
 {
 	size_t size;
-	u64 phys;
 	int i, j;
 
 	size = nr_node_ids * nr_node_ids * sizeof(numa_distance[0]);
-	phys = memblock_phys_alloc_range(size, PAGE_SIZE, 0, PFN_PHYS(max_pfn));
-	if (WARN_ON(!phys))
+	numa_distance = memblock_alloc(size, PAGE_SIZE);
+	if (WARN_ON(!numa_distance))
 		return -ENOMEM;
 
-	numa_distance = __va(phys);
 	numa_distance_cnt = nr_node_ids;
 
 	/* fill with the default distances */
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 2/6] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 1/6] arch_numa: simplify numa_distance allocation Mike Rapoport
@ 2021-09-30 18:50 ` Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 3/6] memblock: drop memblock_free_early_nid() and memblock_free_early() Mike Rapoport
                   ` (4 subsequent siblings)
  6 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

free_p2m_page() wrongly passes a virtual pointer to memblock_free() that
treats it as a physical address.

Call memblock_free_ptr() instead that gets a virtual address to free the
memory.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
---
 arch/x86/xen/p2m.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 5e6e236977c7..141bb9dbd2fb 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -197,7 +197,7 @@ static void * __ref alloc_p2m_page(void)
 static void __ref free_p2m_page(void *p)
 {
 	if (unlikely(!slab_is_available())) {
-		memblock_free((unsigned long)p, PAGE_SIZE);
+		memblock_free_ptr(p, PAGE_SIZE);
 		return;
 	}
 
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 3/6] memblock: drop memblock_free_early_nid() and memblock_free_early()
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 1/6] arch_numa: simplify numa_distance allocation Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 2/6] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer Mike Rapoport
@ 2021-09-30 18:50 ` Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 4/6] memblock: stop aliasing __memblock_free_late with memblock_free_late Mike Rapoport
                   ` (3 subsequent siblings)
  6 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

memblock_free_early_nid() is unused and memblock_free_early() is an alias
for memblock_free().

Replace calls to memblock_free_early() with calls to memblock_free() and
remove memblock_free_early() and memblock_free_early_nid().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 arch/mips/mm/init.c                  |  2 +-
 arch/powerpc/platforms/pseries/svm.c |  3 +--
 arch/s390/kernel/smp.c               |  2 +-
 drivers/base/arch_numa.c             |  2 +-
 drivers/s390/char/sclp_early.c       |  2 +-
 include/linux/memblock.h             | 12 ------------
 kernel/dma/swiotlb.c                 |  2 +-
 lib/cpumask.c                        |  2 +-
 mm/percpu.c                          |  8 ++++----
 mm/sparse.c                          |  2 +-
 10 files changed, 12 insertions(+), 25 deletions(-)

diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 19347dc6bbf8..21a5a7ac0037 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -529,7 +529,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_free_early(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/arch/powerpc/platforms/pseries/svm.c b/arch/powerpc/platforms/pseries/svm.c
index 87f001b4c4e4..f12229ce7301 100644
--- a/arch/powerpc/platforms/pseries/svm.c
+++ b/arch/powerpc/platforms/pseries/svm.c
@@ -56,8 +56,7 @@ void __init svm_swiotlb_init(void)
 		return;
 
 
-	memblock_free_early(__pa(vstart),
-			    PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
+	memblock_free(__pa(vstart), PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
 	panic("SVM: Cannot allocate SWIOTLB buffer");
 }
 
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1a04e5bdf655..066efd6d9345 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -880,7 +880,7 @@ void __init smp_detect_cpus(void)
 
 	/* Add CPUs present at boot */
 	__smp_rescan_cpus(info, true);
-	memblock_free_early((unsigned long)info, sizeof(*info));
+	memblock_free((unsigned long)info, sizeof(*info));
 }
 
 /*
diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index f6d0efd01188..e28d9dfe3c20 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -165,7 +165,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_free_early(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index f3d5c7f4c13d..f01d942e1c1d 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -139,7 +139,7 @@ int __init sclp_early_get_core_info(struct sclp_core_info *info)
 	}
 	sclp_fill_core_info(info, sccb);
 out:
-	memblock_free_early((unsigned long)sccb, length);
+	memblock_free((unsigned long)sccb, length);
 	return rc;
 }
 
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 34de69b3b8ba..fc8183be340c 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -441,18 +441,6 @@ static inline void *memblock_alloc_node(phys_addr_t size,
 				      MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 }
 
-static inline void memblock_free_early(phys_addr_t base,
-					      phys_addr_t size)
-{
-	memblock_free(base, size);
-}
-
-static inline void memblock_free_early_nid(phys_addr_t base,
-						  phys_addr_t size, int nid)
-{
-	memblock_free(base, size);
-}
-
 static inline void memblock_free_late(phys_addr_t base, phys_addr_t size)
 {
 	__memblock_free_late(base, size);
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 87c40517e822..430d2f78d540 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -247,7 +247,7 @@ swiotlb_init(int verbose)
 	return;
 
 fail_free_mem:
-	memblock_free_early(__pa(tlb), bytes);
+	memblock_free(__pa(tlb), bytes);
 fail:
 	pr_warn("Cannot allocate buffer");
 }
diff --git a/lib/cpumask.c b/lib/cpumask.c
index c3c76b833384..045779446a18 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -188,7 +188,7 @@ EXPORT_SYMBOL(free_cpumask_var);
  */
 void __init free_bootmem_cpumask_var(cpumask_var_t mask)
 {
-	memblock_free_early(__pa(mask), cpumask_size());
+	memblock_free(__pa(mask), cpumask_size());
 }
 #endif
 
diff --git a/mm/percpu.c b/mm/percpu.c
index e0a986818903..f58318cb04c0 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -2472,7 +2472,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
  */
 void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai)
 {
-	memblock_free_early(__pa(ai), ai->__ai_size);
+	memblock_free(__pa(ai), ai->__ai_size);
 }
 
 /**
@@ -3134,7 +3134,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
 out_free:
 	pcpu_free_alloc_info(ai);
 	if (areas)
-		memblock_free_early(__pa(areas), areas_size);
+		memblock_free(__pa(areas), areas_size);
 	return rc;
 }
 #endif /* BUILD_EMBED_FIRST_CHUNK */
@@ -3256,7 +3256,7 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
 		free_fn(page_address(pages[j]), PAGE_SIZE);
 	rc = -ENOMEM;
 out_free_ar:
-	memblock_free_early(__pa(pages), pages_size);
+	memblock_free(__pa(pages), pages_size);
 	pcpu_free_alloc_info(ai);
 	return rc;
 }
@@ -3286,7 +3286,7 @@ static void * __init pcpu_dfl_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_dfl_fc_free(void *ptr, size_t size)
 {
-	memblock_free_early(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/mm/sparse.c b/mm/sparse.c
index 120bc8ea5293..55fea0c2f927 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -451,7 +451,7 @@ static void *sparsemap_buf_end __meminitdata;
 static inline void __meminit sparse_buffer_free(unsigned long size)
 {
 	WARN_ON(!sparsemap_buf || size == 0);
-	memblock_free_early(__pa(sparsemap_buf), size);
+	memblock_free(__pa(sparsemap_buf), size);
 }
 
 static void __init sparse_buffer_init(unsigned long size, int nid)
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 4/6] memblock: stop aliasing __memblock_free_late with memblock_free_late
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
                   ` (2 preceding siblings ...)
  2021-09-30 18:50 ` [PATCH v2 3/6] memblock: drop memblock_free_early_nid() and memblock_free_early() Mike Rapoport
@ 2021-09-30 18:50 ` Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 5/6] memblock: rename memblock_free to memblock_phys_free Mike Rapoport
                   ` (2 subsequent siblings)
  6 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

memblock_free_late() is a NOP wrapper for __memblock_free_late(), there is
no point to keep this indirection.

Drop the wrapper and rename __memblock_free_late() to memblock_free_late().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 include/linux/memblock.h | 7 +------
 mm/memblock.c            | 8 ++++----
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index fc8183be340c..e25f964fdd60 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -133,7 +133,7 @@ void __next_mem_range_rev(u64 *idx, int nid, enum memblock_flags flags,
 			  struct memblock_type *type_b, phys_addr_t *out_start,
 			  phys_addr_t *out_end, int *out_nid);
 
-void __memblock_free_late(phys_addr_t base, phys_addr_t size);
+void memblock_free_late(phys_addr_t base, phys_addr_t size);
 
 #ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
 static inline void __next_physmem_range(u64 *idx, struct memblock_type *type,
@@ -441,11 +441,6 @@ static inline void *memblock_alloc_node(phys_addr_t size,
 				      MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 }
 
-static inline void memblock_free_late(phys_addr_t base, phys_addr_t size)
-{
-	__memblock_free_late(base, size);
-}
-
 /*
  * Set the allocation direction to bottom-up or top-down.
  */
diff --git a/mm/memblock.c b/mm/memblock.c
index 184dcd2e5d99..603f4a02be9b 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -366,14 +366,14 @@ void __init memblock_discard(void)
 		addr = __pa(memblock.reserved.regions);
 		size = PAGE_ALIGN(sizeof(struct memblock_region) *
 				  memblock.reserved.max);
-		__memblock_free_late(addr, size);
+		memblock_free_late(addr, size);
 	}
 
 	if (memblock.memory.regions != memblock_memory_init_regions) {
 		addr = __pa(memblock.memory.regions);
 		size = PAGE_ALIGN(sizeof(struct memblock_region) *
 				  memblock.memory.max);
-		__memblock_free_late(addr, size);
+		memblock_free_late(addr, size);
 	}
 
 	memblock_memory = NULL;
@@ -1586,7 +1586,7 @@ void * __init memblock_alloc_try_nid(
 }
 
 /**
- * __memblock_free_late - free pages directly to buddy allocator
+ * memblock_free_late - free pages directly to buddy allocator
  * @base: phys starting address of the  boot memory block
  * @size: size of the boot memory block in bytes
  *
@@ -1594,7 +1594,7 @@ void * __init memblock_alloc_try_nid(
  * down, but we are still initializing the system.  Pages are released directly
  * to the buddy allocator.
  */
-void __init __memblock_free_late(phys_addr_t base, phys_addr_t size)
+void __init memblock_free_late(phys_addr_t base, phys_addr_t size)
 {
 	phys_addr_t cursor, end;
 
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 5/6] memblock: rename memblock_free to memblock_phys_free
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
                   ` (3 preceding siblings ...)
  2021-09-30 18:50 ` [PATCH v2 4/6] memblock: stop aliasing __memblock_free_late with memblock_free_late Mike Rapoport
@ 2021-09-30 18:50 ` Mike Rapoport
  2021-09-30 18:50 ` [PATCH v2 6/6] memblock: use memblock_free for freeing virtual pointers Mike Rapoport
  2021-09-30 21:20 ` [PATCH v2 0/6] memblock: cleanup memblock_free interface Linus Torvalds
  6 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

Since memblock_free() operates on a physical range, make its name reflect
it and rename it to memblock_phys_free(), so it will be a logical
counterpart to memblock_phys_alloc().

The callers are updated with the below semantic patch:

@@
expression addr;
expression size;
@@
- memblock_free(addr, size);
+ memblock_phys_free(addr, size);

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 arch/alpha/kernel/core_irongate.c         |  3 ++-
 arch/arc/mm/init.c                        |  2 +-
 arch/arm/mach-hisi/platmcpm.c             |  2 +-
 arch/arm/mm/init.c                        |  2 +-
 arch/arm64/mm/mmu.c                       |  4 ++--
 arch/mips/mm/init.c                       |  2 +-
 arch/mips/sgi-ip30/ip30-setup.c           |  6 +++---
 arch/powerpc/kernel/dt_cpu_ftrs.c         |  4 ++--
 arch/powerpc/kernel/paca.c                |  8 ++++----
 arch/powerpc/kernel/setup-common.c        |  2 +-
 arch/powerpc/kernel/setup_64.c            |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  2 +-
 arch/powerpc/platforms/pseries/svm.c      |  3 ++-
 arch/riscv/kernel/setup.c                 |  5 +++--
 arch/s390/kernel/setup.c                  |  8 ++++----
 arch/s390/kernel/smp.c                    |  4 ++--
 arch/s390/kernel/uv.c                     |  2 +-
 arch/s390/mm/kasan_init.c                 |  2 +-
 arch/sh/boards/mach-ap325rxa/setup.c      |  2 +-
 arch/sh/boards/mach-ecovec24/setup.c      |  4 ++--
 arch/sh/boards/mach-kfr2r09/setup.c       |  2 +-
 arch/sh/boards/mach-migor/setup.c         |  2 +-
 arch/sh/boards/mach-se/7724/setup.c       |  4 ++--
 arch/sparc/kernel/smp_64.c                |  2 +-
 arch/um/kernel/mem.c                      |  2 +-
 arch/x86/kernel/setup.c                   |  4 ++--
 arch/x86/mm/init.c                        |  2 +-
 arch/x86/xen/mmu_pv.c                     |  6 +++---
 arch/x86/xen/setup.c                      |  6 +++---
 drivers/base/arch_numa.c                  |  2 +-
 drivers/firmware/efi/memmap.c             |  2 +-
 drivers/of/kexec.c                        |  3 +--
 drivers/of/of_reserved_mem.c              |  5 +++--
 drivers/s390/char/sclp_early.c            |  2 +-
 drivers/usb/early/xhci-dbc.c              | 10 +++++-----
 drivers/xen/swiotlb-xen.c                 |  2 +-
 include/linux/memblock.h                  |  2 +-
 init/initramfs.c                          |  2 +-
 kernel/dma/swiotlb.c                      |  2 +-
 lib/cpumask.c                             |  2 +-
 mm/cma.c                                  |  2 +-
 mm/memblock.c                             |  8 ++++----
 mm/memory_hotplug.c                       |  2 +-
 mm/percpu.c                               |  8 ++++----
 mm/sparse.c                               |  2 +-
 45 files changed, 79 insertions(+), 76 deletions(-)

diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
index 72af1e72d833..ee26dcc49418 100644
--- a/arch/alpha/kernel/core_irongate.c
+++ b/arch/alpha/kernel/core_irongate.c
@@ -233,7 +233,8 @@ albacore_init_arch(void)
 			unsigned long size;
 
 			size = initrd_end - initrd_start;
-			memblock_free(__pa(initrd_start), PAGE_ALIGN(size));
+			memblock_phys_free(__pa(initrd_start),
+					   PAGE_ALIGN(size));
 			if (!move_initrd(pci_mem))
 				printk("irongate_init_arch: initrd too big "
 				       "(%ldK)\ndisabling initrd\n",
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index 699ecf119641..59408f6a02d4 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -173,7 +173,7 @@ static void __init highmem_init(void)
 #ifdef CONFIG_HIGHMEM
 	unsigned long tmp;
 
-	memblock_free(high_mem_start, high_mem_sz);
+	memblock_phys_free(high_mem_start, high_mem_sz);
 	for (tmp = min_high_pfn; tmp < max_high_pfn; tmp++)
 		free_highmem_page(pfn_to_page(tmp));
 #endif
diff --git a/arch/arm/mach-hisi/platmcpm.c b/arch/arm/mach-hisi/platmcpm.c
index 96a484095194..258586e31333 100644
--- a/arch/arm/mach-hisi/platmcpm.c
+++ b/arch/arm/mach-hisi/platmcpm.c
@@ -339,7 +339,7 @@ static int __init hip04_smp_init(void)
 err_sysctrl:
 	iounmap(relocation);
 err_reloc:
-	memblock_free(hip04_boot_method[0], hip04_boot_method[1]);
+	memblock_phys_free(hip04_boot_method[0], hip04_boot_method[1]);
 err:
 	return ret;
 }
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 6162a070a410..6d0cb0f7bc54 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -158,7 +158,7 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
 		panic("Failed to steal %pa bytes at %pS\n",
 		      &size, (void *)_RET_IP_);
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 
 	return phys;
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index cfd9deb347c3..f68c2d953617 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -738,8 +738,8 @@ void __init paging_init(void)
 	cpu_replace_ttbr1(lm_alias(swapper_pg_dir));
 	init_mm.pgd = swapper_pg_dir;
 
-	memblock_free(__pa_symbol(init_pg_dir),
-		      __pa_symbol(init_pg_end) - __pa_symbol(init_pg_dir));
+	memblock_phys_free(__pa_symbol(init_pg_dir),
+			   __pa_symbol(init_pg_end) - __pa_symbol(init_pg_dir));
 
 	memblock_allow_resize();
 }
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 21a5a7ac0037..3be1c29084fa 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -529,7 +529,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_free(__pa(ptr), size);
+	memblock_phys_free(__pa(ptr), size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/arch/mips/sgi-ip30/ip30-setup.c b/arch/mips/sgi-ip30/ip30-setup.c
index 44b1607e964d..75a34684e704 100644
--- a/arch/mips/sgi-ip30/ip30-setup.c
+++ b/arch/mips/sgi-ip30/ip30-setup.c
@@ -69,10 +69,10 @@ static void __init ip30_mem_init(void)
 		total_mem += size;
 
 		if (addr >= IP30_REAL_MEMORY_START)
-			memblock_free(addr, size);
+			memblock_phys_free(addr, size);
 		else if ((addr + size) > IP30_REAL_MEMORY_START)
-			memblock_free(IP30_REAL_MEMORY_START,
-				     size - IP30_MAX_PROM_MEMORY);
+			memblock_phys_free(IP30_REAL_MEMORY_START,
+					   size - IP30_MAX_PROM_MEMORY);
 	}
 	pr_info("Detected %luMB of physical memory.\n", MEM_SHIFT(total_mem));
 }
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 358aee7c2d79..42839d6bd486 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -1095,8 +1095,8 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
 
 	cpufeatures_setup_finished();
 
-	memblock_free(__pa(dt_cpu_features),
-			sizeof(struct dt_cpu_feature)*nr_dt_cpu_features);
+	memblock_phys_free(__pa(dt_cpu_features),
+			   sizeof(struct dt_cpu_feature) * nr_dt_cpu_features);
 
 	return 0;
 }
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 9bd30cac852b..4208b4044d12 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -322,8 +322,8 @@ void __init free_unused_pacas(void)
 
 	new_ptrs_size = sizeof(struct paca_struct *) * nr_cpu_ids;
 	if (new_ptrs_size < paca_ptrs_size)
-		memblock_free(__pa(paca_ptrs) + new_ptrs_size,
-					paca_ptrs_size - new_ptrs_size);
+		memblock_phys_free(__pa(paca_ptrs) + new_ptrs_size,
+				   paca_ptrs_size - new_ptrs_size);
 
 	paca_nr_cpu_ids = nr_cpu_ids;
 	paca_ptrs_size = new_ptrs_size;
@@ -331,8 +331,8 @@ void __init free_unused_pacas(void)
 #ifdef CONFIG_PPC_BOOK3S_64
 	if (early_radix_enabled()) {
 		/* Ugly fixup, see new_slb_shadow() */
-		memblock_free(__pa(paca_ptrs[boot_cpuid]->slb_shadow_ptr),
-				sizeof(struct slb_shadow));
+		memblock_phys_free(__pa(paca_ptrs[boot_cpuid]->slb_shadow_ptr),
+				   sizeof(struct slb_shadow));
 		paca_ptrs[boot_cpuid]->slb_shadow_ptr = NULL;
 	}
 #endif
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index b1e43b69a559..5af8993a8e6d 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -825,7 +825,7 @@ static void __init smp_setup_pacas(void)
 		set_hard_smp_processor_id(cpu, cpu_to_phys_id[cpu]);
 	}
 
-	memblock_free(__pa(cpu_to_phys_id), nr_cpu_ids * sizeof(u32));
+	memblock_phys_free(__pa(cpu_to_phys_id), nr_cpu_ids * sizeof(u32));
 	cpu_to_phys_id = NULL;
 }
 #endif
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index eaa79a0996d1..75bc294ac40d 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -812,7 +812,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 
 static void __init pcpu_free_bootmem(void *ptr, size_t size)
 {
-	memblock_free(__pa(ptr), size);
+	memblock_phys_free(__pa(ptr), size);
 }
 
 static int pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 3dd35c327d1c..b5a9d343b720 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2981,7 +2981,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	if (!phb->hose) {
 		pr_err("  Can't allocate PCI controller for %pOF\n",
 		       np);
-		memblock_free(__pa(phb), sizeof(struct pnv_phb));
+		memblock_phys_free(__pa(phb), sizeof(struct pnv_phb));
 		return;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/svm.c b/arch/powerpc/platforms/pseries/svm.c
index f12229ce7301..b7c017bb40f7 100644
--- a/arch/powerpc/platforms/pseries/svm.c
+++ b/arch/powerpc/platforms/pseries/svm.c
@@ -56,7 +56,8 @@ void __init svm_swiotlb_init(void)
 		return;
 
 
-	memblock_free(__pa(vstart), PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
+	memblock_phys_free(__pa(vstart),
+			   PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
 	panic("SVM: Cannot allocate SWIOTLB buffer");
 }
 
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index b9620e5f00ba..6ea7c53b82cd 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -230,13 +230,14 @@ static void __init init_resources(void)
 
 	/* Clean-up any unused pre-allocated resources */
 	if (res_idx >= 0)
-		memblock_free(__pa(mem_res), (res_idx + 1) * sizeof(*mem_res));
+		memblock_phys_free(__pa(mem_res),
+				   (res_idx + 1) * sizeof(*mem_res));
 	return;
 
  error:
 	/* Better an empty resource tree than an inconsistent one */
 	release_child_resources(&iomem_resource);
-	memblock_free(__pa(mem_res), mem_res_sz);
+	memblock_phys_free(__pa(mem_res), mem_res_sz);
 }
 
 
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 67e5fff96ee0..7fc836e9e194 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -693,7 +693,7 @@ static void __init reserve_crashkernel(void)
 	}
 
 	if (register_memory_notifier(&kdump_mem_nb)) {
-		memblock_free(crash_base, crash_size);
+		memblock_phys_free(crash_base, crash_size);
 		return;
 	}
 
@@ -748,7 +748,7 @@ static void __init free_mem_detect_info(void)
 
 	get_mem_detect_reserved(&start, &size);
 	if (size)
-		memblock_free(start, size);
+		memblock_phys_free(start, size);
 }
 
 static const char * __init get_mem_info_source(void)
@@ -793,7 +793,7 @@ static void __init check_initrd(void)
 	if (initrd_data.start && initrd_data.size &&
 	    !memblock_is_region_memory(initrd_data.start, initrd_data.size)) {
 		pr_err("The initial RAM disk does not fit into the memory\n");
-		memblock_free(initrd_data.start, initrd_data.size);
+		memblock_phys_free(initrd_data.start, initrd_data.size);
 		initrd_start = initrd_end = 0;
 	}
 #endif
@@ -890,7 +890,7 @@ static void __init setup_randomness(void)
 
 	if (stsi(vmms, 3, 2, 2) == 0 && vmms->count)
 		add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count);
-	memblock_free((unsigned long) vmms, PAGE_SIZE);
+	memblock_phys_free((unsigned long)vmms, PAGE_SIZE);
 }
 
 /*
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 066efd6d9345..78a8ea6fd582 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -723,7 +723,7 @@ void __init smp_save_dump_cpus(void)
 			/* Get the CPU registers */
 			smp_save_cpu_regs(sa, addr, is_boot_cpu, page);
 	}
-	memblock_free(page, PAGE_SIZE);
+	memblock_phys_free(page, PAGE_SIZE);
 	diag_amode31_ops.diag308_reset();
 	pcpu_set_smt(0);
 }
@@ -880,7 +880,7 @@ void __init smp_detect_cpus(void)
 
 	/* Add CPUs present at boot */
 	__smp_rescan_cpus(info, true);
-	memblock_free((unsigned long)info, sizeof(*info));
+	memblock_phys_free((unsigned long)info, sizeof(*info));
 }
 
 /*
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index 5a656c7b7a67..d57457b16fe5 100644
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -64,7 +64,7 @@ void __init setup_uv(void)
 	}
 
 	if (uv_init(uv_stor_base, uv_info.uv_base_stor_len)) {
-		memblock_free(uv_stor_base, uv_info.uv_base_stor_len);
+		memblock_phys_free(uv_stor_base, uv_info.uv_base_stor_len);
 		goto fail;
 	}
 
diff --git a/arch/s390/mm/kasan_init.c b/arch/s390/mm/kasan_init.c
index 3e4735168019..483b9dbe0970 100644
--- a/arch/s390/mm/kasan_init.c
+++ b/arch/s390/mm/kasan_init.c
@@ -399,5 +399,5 @@ void __init kasan_copy_shadow_mapping(void)
 
 void __init kasan_free_early_identity(void)
 {
-	memblock_free(pgalloc_pos, pgalloc_freeable - pgalloc_pos);
+	memblock_phys_free(pgalloc_pos, pgalloc_freeable - pgalloc_pos);
 }
diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index bac8a058ebd7..c77b5f00a66a 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -560,7 +560,7 @@ static void __init ap325rxa_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 
 	ceu_dma_membase = phys;
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index bab91a99124e..2b22ce792147 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -1502,7 +1502,7 @@ static void __init ecovec_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU0 memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 	ceu0_dma_membase = phys;
 
@@ -1510,7 +1510,7 @@ static void __init ecovec_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU1 memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 	ceu1_dma_membase = phys;
 }
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index eeb5ce341efd..20f4db778ed6 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -633,7 +633,7 @@ static void __init kfr2r09_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 
 	ceu_dma_membase = phys;
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 6703a2122c0d..f60061283c48 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -633,7 +633,7 @@ static void __init migor_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 
 	ceu_dma_membase = phys;
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 8d6541ba0186..8bbf5a6aa423 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -966,7 +966,7 @@ static void __init ms7724se_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU0 memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 	ceu0_dma_membase = phys;
 
@@ -974,7 +974,7 @@ static void __init ms7724se_mv_mem_reserve(void)
 	if (!phys)
 		panic("Failed to allocate CEU1 memory\n");
 
-	memblock_free(phys, size);
+	memblock_phys_free(phys, size);
 	memblock_remove(phys, size);
 	ceu1_dma_membase = phys;
 }
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 0224d8f19ed6..2507549538df 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1567,7 +1567,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 
 static void __init pcpu_free_bootmem(void *ptr, size_t size)
 {
-	memblock_free(__pa(ptr), size);
+	memblock_phys_free(__pa(ptr), size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 8e636ce02949..d1710ebb44f4 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -47,7 +47,7 @@ void __init mem_init(void)
 	 */
 	brk_end = (unsigned long) UML_ROUND_UP(sbrk(0));
 	map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0);
-	memblock_free(__pa(brk_end), uml_reserved - brk_end);
+	memblock_phys_free(__pa(brk_end), uml_reserved - brk_end);
 	uml_reserved = brk_end;
 
 	/* this will put all low memory onto the freelists */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 40ed44ead063..49b596db5631 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -322,7 +322,7 @@ static void __init reserve_initrd(void)
 
 	relocate_initrd();
 
-	memblock_free(ramdisk_image, ramdisk_end - ramdisk_image);
+	memblock_phys_free(ramdisk_image, ramdisk_end - ramdisk_image);
 }
 
 #else
@@ -521,7 +521,7 @@ static void __init reserve_crashkernel(void)
 	}
 
 	if (crash_base >= (1ULL << 32) && reserve_crashkernel_low()) {
-		memblock_free(crash_base, crash_size);
+		memblock_phys_free(crash_base, crash_size);
 		return;
 	}
 
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 23a14d82e783..1895986842b9 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -618,7 +618,7 @@ static void __init memory_map_top_down(unsigned long map_start,
 	 */
 	addr = memblock_phys_alloc_range(PMD_SIZE, PMD_SIZE, map_start,
 					 map_end);
-	memblock_free(addr, PMD_SIZE);
+	memblock_phys_free(addr, PMD_SIZE);
 	real_end = addr + PMD_SIZE;
 
 	/* step_size need to be small so pgt_buf from BRK could cover it */
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 8d751939c6f3..3500b22ff087 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -1025,7 +1025,7 @@ static void __init xen_free_ro_pages(unsigned long paddr, unsigned long size)
 	for (; vaddr < vaddr_end; vaddr += PAGE_SIZE)
 		make_lowmem_page_readwrite(vaddr);
 
-	memblock_free(paddr, size);
+	memblock_phys_free(paddr, size);
 }
 
 static void __init xen_cleanmfnmap_free_pgtbl(void *pgtbl, bool unpin)
@@ -1151,7 +1151,7 @@ static void __init xen_pagetable_p2m_free(void)
 		xen_cleanhighmap(addr, addr + size);
 		size = PAGE_ALIGN(xen_start_info->nr_pages *
 				  sizeof(unsigned long));
-		memblock_free(__pa(addr), size);
+		memblock_phys_free(__pa(addr), size);
 	} else {
 		xen_cleanmfnmap(addr);
 	}
@@ -1955,7 +1955,7 @@ void __init xen_relocate_p2m(void)
 		pfn_end = p2m_pfn_end;
 	}
 
-	memblock_free(PFN_PHYS(pfn), PAGE_SIZE * (pfn_end - pfn));
+	memblock_phys_free(PFN_PHYS(pfn), PAGE_SIZE * (pfn_end - pfn));
 	while (pfn < pfn_end) {
 		if (pfn == p2m_pfn) {
 			pfn = p2m_pfn_end;
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 8bfc10330107..f387fc7e5250 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -153,7 +153,7 @@ static void __init xen_del_extra_mem(unsigned long start_pfn,
 			break;
 		}
 	}
-	memblock_free(PFN_PHYS(start_pfn), PFN_PHYS(n_pfns));
+	memblock_phys_free(PFN_PHYS(start_pfn), PFN_PHYS(n_pfns));
 }
 
 /*
@@ -719,7 +719,7 @@ static void __init xen_reserve_xen_mfnlist(void)
 		return;
 
 	xen_relocate_p2m();
-	memblock_free(start, size);
+	memblock_phys_free(start, size);
 }
 
 /**
@@ -885,7 +885,7 @@ char * __init xen_memory_setup(void)
 		xen_phys_memcpy(new_area, start, size);
 		pr_info("initrd moved from [mem %#010llx-%#010llx] to [mem %#010llx-%#010llx]\n",
 			start, start + size, new_area, new_area + size);
-		memblock_free(start, size);
+		memblock_phys_free(start, size);
 		boot_params.hdr.ramdisk_image = new_area;
 		boot_params.ext_ramdisk_image = new_area >> 32;
 	}
diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index e28d9dfe3c20..7974913af09c 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -165,7 +165,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_free(__pa(ptr), size);
+	memblock_phys_free(__pa(ptr), size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c
index 2ff1883dc788..4df55a55da84 100644
--- a/drivers/firmware/efi/memmap.c
+++ b/drivers/firmware/efi/memmap.c
@@ -35,7 +35,7 @@ void __init __efi_memmap_free(u64 phys, unsigned long size, unsigned long flags)
 		if (slab_is_available())
 			memblock_free_late(phys, size);
 		else
-			memblock_free(phys, size);
+			memblock_phys_free(phys, size);
 	} else if (flags & EFI_MEMMAP_SLAB) {
 		struct page *p = pfn_to_page(PHYS_PFN(phys));
 		unsigned int order = get_order(size);
diff --git a/drivers/of/kexec.c b/drivers/of/kexec.c
index 761fd870d1db..57ad67c04dfe 100644
--- a/drivers/of/kexec.c
+++ b/drivers/of/kexec.c
@@ -170,8 +170,7 @@ int ima_free_kexec_buffer(void)
 	if (ret)
 		return ret;
 
-	return memblock_free(addr, size);
-
+	return memblock_phys_free(addr, size);
 }
 
 /**
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 59c1390cdf42..161c71e1e390 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -45,7 +45,7 @@ static int __init early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
 	if (nomap) {
 		err = memblock_mark_nomap(base, size);
 		if (err)
-			memblock_free(base, size);
+			memblock_phys_free(base, size);
 	}
 
 	return err;
@@ -282,7 +282,8 @@ void __init fdt_init_reserved_mem(void)
 				if (nomap)
 					memblock_clear_nomap(rmem->base, rmem->size);
 				else
-					memblock_free(rmem->base, rmem->size);
+					memblock_phys_free(rmem->base,
+							   rmem->size);
 			}
 		}
 	}
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index f01d942e1c1d..c0052655fc4f 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -139,7 +139,7 @@ int __init sclp_early_get_core_info(struct sclp_core_info *info)
 	}
 	sclp_fill_core_info(info, sccb);
 out:
-	memblock_free((unsigned long)sccb, length);
+	memblock_phys_free((unsigned long)sccb, length);
 	return rc;
 }
 
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index be4ecbabdd58..933d77ad0a64 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -185,7 +185,7 @@ static void __init xdbc_free_ring(struct xdbc_ring *ring)
 	if (!seg)
 		return;
 
-	memblock_free(seg->dma, PAGE_SIZE);
+	memblock_phys_free(seg->dma, PAGE_SIZE);
 	ring->segment = NULL;
 }
 
@@ -665,10 +665,10 @@ int __init early_xdbc_setup_hardware(void)
 		xdbc_free_ring(&xdbc.in_ring);
 
 		if (xdbc.table_dma)
-			memblock_free(xdbc.table_dma, PAGE_SIZE);
+			memblock_phys_free(xdbc.table_dma, PAGE_SIZE);
 
 		if (xdbc.out_dma)
-			memblock_free(xdbc.out_dma, PAGE_SIZE);
+			memblock_phys_free(xdbc.out_dma, PAGE_SIZE);
 
 		xdbc.table_base = NULL;
 		xdbc.out_buf = NULL;
@@ -987,8 +987,8 @@ static int __init xdbc_init(void)
 	xdbc_free_ring(&xdbc.evt_ring);
 	xdbc_free_ring(&xdbc.out_ring);
 	xdbc_free_ring(&xdbc.in_ring);
-	memblock_free(xdbc.table_dma, PAGE_SIZE);
-	memblock_free(xdbc.out_dma, PAGE_SIZE);
+	memblock_phys_free(xdbc.table_dma, PAGE_SIZE);
+	memblock_phys_free(xdbc.out_dma, PAGE_SIZE);
 	writel(0, &xdbc.xdbc_reg->control);
 	early_iounmap(xdbc.xhci_base, xdbc.xhci_length);
 
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index e56a5faac395..4b671cc0a7ea 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -241,7 +241,7 @@ void __init xen_swiotlb_init_early(void)
 	 */
 	rc = xen_swiotlb_fixup(start, nslabs);
 	if (rc) {
-		memblock_free(__pa(start), PAGE_ALIGN(bytes));
+		memblock_phys_free(__pa(start), PAGE_ALIGN(bytes));
 		if (nslabs > 1024 && repeat--) {
 			/* Min is 2MB */
 			nslabs = max(1024UL, ALIGN(nslabs >> 1, IO_TLB_SEGSIZE));
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index e25f964fdd60..d32d41709513 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -103,7 +103,7 @@ void memblock_allow_resize(void);
 int memblock_add_node(phys_addr_t base, phys_addr_t size, int nid);
 int memblock_add(phys_addr_t base, phys_addr_t size);
 int memblock_remove(phys_addr_t base, phys_addr_t size);
-int memblock_free(phys_addr_t base, phys_addr_t size);
+int memblock_phys_free(phys_addr_t base, phys_addr_t size);
 int memblock_reserve(phys_addr_t base, phys_addr_t size);
 #ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
 int memblock_physmem_add(phys_addr_t base, phys_addr_t size);
diff --git a/init/initramfs.c b/init/initramfs.c
index a842c0544745..1a971f070dd4 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -607,7 +607,7 @@ void __weak __init free_initrd_mem(unsigned long start, unsigned long end)
 	unsigned long aligned_start = ALIGN_DOWN(start, PAGE_SIZE);
 	unsigned long aligned_end = ALIGN(end, PAGE_SIZE);
 
-	memblock_free(__pa(aligned_start), aligned_end - aligned_start);
+	memblock_phys_free(__pa(aligned_start), aligned_end - aligned_start);
 #endif
 
 	free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM,
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 430d2f78d540..b9fa173e5e56 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -247,7 +247,7 @@ swiotlb_init(int verbose)
 	return;
 
 fail_free_mem:
-	memblock_free(__pa(tlb), bytes);
+	memblock_phys_free(__pa(tlb), bytes);
 fail:
 	pr_warn("Cannot allocate buffer");
 }
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 045779446a18..a90786b77c1c 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -188,7 +188,7 @@ EXPORT_SYMBOL(free_cpumask_var);
  */
 void __init free_bootmem_cpumask_var(cpumask_var_t mask)
 {
-	memblock_free(__pa(mask), cpumask_size());
+	memblock_phys_free(__pa(mask), cpumask_size());
 }
 #endif
 
diff --git a/mm/cma.c b/mm/cma.c
index 995e15480937..f9a53bc708f2 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -378,7 +378,7 @@ int __init cma_declare_contiguous_nid(phys_addr_t base,
 	return 0;
 
 free_mem:
-	memblock_free(base, size);
+	memblock_phys_free(base, size);
 err:
 	pr_err("Failed to reserve %ld MiB\n", (unsigned long)size / SZ_1M);
 	return ret;
diff --git a/mm/memblock.c b/mm/memblock.c
index 603f4a02be9b..a23baa482f3f 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -806,18 +806,18 @@ int __init_memblock memblock_remove(phys_addr_t base, phys_addr_t size)
 void __init_memblock memblock_free_ptr(void *ptr, size_t size)
 {
 	if (ptr)
-		memblock_free(__pa(ptr), size);
+		memblock_phys_free(__pa(ptr), size);
 }
 
 /**
- * memblock_free - free boot memory block
+ * memblock_phys_free - free boot memory block
  * @base: phys starting address of the  boot memory block
  * @size: size of the boot memory block in bytes
  *
  * Free boot memory block previously allocated by memblock_alloc_xx() API.
  * The freeing memory will not be released to the buddy allocator.
  */
-int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
+int __init_memblock memblock_phys_free(phys_addr_t base, phys_addr_t size)
 {
 	phys_addr_t end = base + size - 1;
 
@@ -1934,7 +1934,7 @@ static void __init free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 	 * memmap array.
 	 */
 	if (pg < pgend)
-		memblock_free(pg, pgend - pg);
+		memblock_phys_free(pg, pgend - pg);
 }
 
 /*
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9fd0be32a281..feffaa9423fe 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -2204,7 +2204,7 @@ static int __ref try_remove_memory(u64 start, u64 size)
 	arch_remove_memory(start, size, altmap);
 
 	if (IS_ENABLED(CONFIG_ARCH_KEEP_MEMBLOCK)) {
-		memblock_free(start, size);
+		memblock_phys_free(start, size);
 		memblock_remove(start, size);
 	}
 
diff --git a/mm/percpu.c b/mm/percpu.c
index f58318cb04c0..d65ddf6f2a35 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -2472,7 +2472,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
  */
 void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai)
 {
-	memblock_free(__pa(ai), ai->__ai_size);
+	memblock_phys_free(__pa(ai), ai->__ai_size);
 }
 
 /**
@@ -3134,7 +3134,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
 out_free:
 	pcpu_free_alloc_info(ai);
 	if (areas)
-		memblock_free(__pa(areas), areas_size);
+		memblock_phys_free(__pa(areas), areas_size);
 	return rc;
 }
 #endif /* BUILD_EMBED_FIRST_CHUNK */
@@ -3256,7 +3256,7 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
 		free_fn(page_address(pages[j]), PAGE_SIZE);
 	rc = -ENOMEM;
 out_free_ar:
-	memblock_free(__pa(pages), pages_size);
+	memblock_phys_free(__pa(pages), pages_size);
 	pcpu_free_alloc_info(ai);
 	return rc;
 }
@@ -3286,7 +3286,7 @@ static void * __init pcpu_dfl_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_dfl_fc_free(void *ptr, size_t size)
 {
-	memblock_free(__pa(ptr), size);
+	memblock_phys_free(__pa(ptr), size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/mm/sparse.c b/mm/sparse.c
index 55fea0c2f927..fc3ab8d3b6bc 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -451,7 +451,7 @@ static void *sparsemap_buf_end __meminitdata;
 static inline void __meminit sparse_buffer_free(unsigned long size)
 {
 	WARN_ON(!sparsemap_buf || size == 0);
-	memblock_free(__pa(sparsemap_buf), size);
+	memblock_phys_free(__pa(sparsemap_buf), size);
 }
 
 static void __init sparse_buffer_init(unsigned long size, int nid)
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 6/6] memblock: use memblock_free for freeing virtual pointers
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
                   ` (4 preceding siblings ...)
  2021-09-30 18:50 ` [PATCH v2 5/6] memblock: rename memblock_free to memblock_phys_free Mike Rapoport
@ 2021-09-30 18:50 ` Mike Rapoport
  2021-09-30 21:20 ` [PATCH v2 0/6] memblock: cleanup memblock_free interface Linus Torvalds
  6 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 18:50 UTC (permalink / raw)
  To: linux-kernel
  Cc: Andrew Morton, Christophe Leroy, Juergen Gross, Linus Torvalds,
	Mike Rapoport, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, kvm, linux-alpha, linux-arm-kernel, linux-efi,
	linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh,
	linux-snps-arc, linux-um, linux-usb, linuxppc-dev, sparclinux,
	xen-devel

From: Mike Rapoport <rppt@linux.ibm.com>

Rename memblock_free_ptr() to memblock_free() and use memblock_free()
when freeing a virtual pointer so that memblock_free() will be a
counterpart of memblock_alloc()

The callers are updated with the below semantic patch and manual addition
of (void *) casting to pointers that are represented by unsigned long
variables.

@@
identifier vaddr;
expression size;
@@
(
- memblock_phys_free(__pa(vaddr), size);
+ memblock_free(vaddr, size);
|
- memblock_free_ptr(vaddr, size);
+ memblock_free(vaddr, size);
)

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 arch/alpha/kernel/core_irongate.c         | 3 +--
 arch/mips/mm/init.c                       | 2 +-
 arch/powerpc/kernel/dt_cpu_ftrs.c         | 4 ++--
 arch/powerpc/kernel/setup-common.c        | 2 +-
 arch/powerpc/kernel/setup_64.c            | 2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
 arch/powerpc/platforms/pseries/svm.c      | 3 +--
 arch/riscv/kernel/setup.c                 | 5 ++---
 arch/sparc/kernel/smp_64.c                | 2 +-
 arch/um/kernel/mem.c                      | 2 +-
 arch/x86/kernel/setup_percpu.c            | 2 +-
 arch/x86/mm/kasan_init_64.c               | 4 ++--
 arch/x86/mm/numa.c                        | 2 +-
 arch/x86/mm/numa_emulation.c              | 2 +-
 arch/x86/xen/mmu_pv.c                     | 2 +-
 arch/x86/xen/p2m.c                        | 2 +-
 drivers/base/arch_numa.c                  | 4 ++--
 drivers/macintosh/smu.c                   | 2 +-
 drivers/xen/swiotlb-xen.c                 | 2 +-
 include/linux/memblock.h                  | 2 +-
 init/initramfs.c                          | 2 +-
 init/main.c                               | 2 +-
 kernel/dma/swiotlb.c                      | 2 +-
 kernel/printk/printk.c                    | 4 ++--
 lib/bootconfig.c                          | 2 +-
 lib/cpumask.c                             | 2 +-
 mm/memblock.c                             | 6 +++---
 mm/percpu.c                               | 8 ++++----
 mm/sparse.c                               | 2 +-
 29 files changed, 39 insertions(+), 42 deletions(-)

diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
index ee26dcc49418..6b8ed12936b6 100644
--- a/arch/alpha/kernel/core_irongate.c
+++ b/arch/alpha/kernel/core_irongate.c
@@ -233,8 +233,7 @@ albacore_init_arch(void)
 			unsigned long size;
 
 			size = initrd_end - initrd_start;
-			memblock_phys_free(__pa(initrd_start),
-					   PAGE_ALIGN(size));
+			memblock_free((void *)initrd_start, PAGE_ALIGN(size));
 			if (!move_initrd(pci_mem))
 				printk("irongate_init_arch: initrd too big "
 				       "(%ldK)\ndisabling initrd\n",
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 3be1c29084fa..325e1552cbea 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -529,7 +529,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_phys_free(__pa(ptr), size);
+	memblock_free(ptr, size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 42839d6bd486..ba527fb52993 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -1095,8 +1095,8 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
 
 	cpufeatures_setup_finished();
 
-	memblock_phys_free(__pa(dt_cpu_features),
-			   sizeof(struct dt_cpu_feature) * nr_dt_cpu_features);
+	memblock_free(dt_cpu_features,
+		      sizeof(struct dt_cpu_feature) * nr_dt_cpu_features);
 
 	return 0;
 }
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 5af8993a8e6d..6b1338db8779 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -825,7 +825,7 @@ static void __init smp_setup_pacas(void)
 		set_hard_smp_processor_id(cpu, cpu_to_phys_id[cpu]);
 	}
 
-	memblock_phys_free(__pa(cpu_to_phys_id), nr_cpu_ids * sizeof(u32));
+	memblock_free(cpu_to_phys_id, nr_cpu_ids * sizeof(u32));
 	cpu_to_phys_id = NULL;
 }
 #endif
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 75bc294ac40d..1777e992b20b 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -812,7 +812,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 
 static void __init pcpu_free_bootmem(void *ptr, size_t size)
 {
-	memblock_phys_free(__pa(ptr), size);
+	memblock_free(ptr, size);
 }
 
 static int pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index b5a9d343b720..004cd6a96c8a 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2981,7 +2981,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	if (!phb->hose) {
 		pr_err("  Can't allocate PCI controller for %pOF\n",
 		       np);
-		memblock_phys_free(__pa(phb), sizeof(struct pnv_phb));
+		memblock_free(phb, sizeof(struct pnv_phb));
 		return;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/svm.c b/arch/powerpc/platforms/pseries/svm.c
index b7c017bb40f7..6332365d2891 100644
--- a/arch/powerpc/platforms/pseries/svm.c
+++ b/arch/powerpc/platforms/pseries/svm.c
@@ -56,8 +56,7 @@ void __init svm_swiotlb_init(void)
 		return;
 
 
-	memblock_phys_free(__pa(vstart),
-			   PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
+	memblock_free(vstart, PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
 	panic("SVM: Cannot allocate SWIOTLB buffer");
 }
 
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 6ea7c53b82cd..b42bfdc67482 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -230,14 +230,13 @@ static void __init init_resources(void)
 
 	/* Clean-up any unused pre-allocated resources */
 	if (res_idx >= 0)
-		memblock_phys_free(__pa(mem_res),
-				   (res_idx + 1) * sizeof(*mem_res));
+		memblock_free(mem_res, (res_idx + 1) * sizeof(*mem_res));
 	return;
 
  error:
 	/* Better an empty resource tree than an inconsistent one */
 	release_child_resources(&iomem_resource);
-	memblock_phys_free(__pa(mem_res), mem_res_sz);
+	memblock_free(mem_res, mem_res_sz);
 }
 
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 2507549538df..b98a7bbe6728 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1567,7 +1567,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 
 static void __init pcpu_free_bootmem(void *ptr, size_t size)
 {
-	memblock_phys_free(__pa(ptr), size);
+	memblock_free(ptr, size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index d1710ebb44f4..0039771eb01c 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -47,7 +47,7 @@ void __init mem_init(void)
 	 */
 	brk_end = (unsigned long) UML_ROUND_UP(sbrk(0));
 	map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0);
-	memblock_phys_free(__pa(brk_end), uml_reserved - brk_end);
+	memblock_free((void *)brk_end, uml_reserved - brk_end);
 	uml_reserved = brk_end;
 
 	/* this will put all low memory onto the freelists */
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 5afd98559193..7b65275544b2 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -135,7 +135,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_free_ptr(ptr, size);
+	memblock_free(ptr, size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index ef885370719a..e7b9b464a82f 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -49,7 +49,7 @@ static void __init kasan_populate_pmd(pmd_t *pmd, unsigned long addr,
 			p = early_alloc(PMD_SIZE, nid, false);
 			if (p && pmd_set_huge(pmd, __pa(p), PAGE_KERNEL))
 				return;
-			memblock_free_ptr(p, PMD_SIZE);
+			memblock_free(p, PMD_SIZE);
 		}
 
 		p = early_alloc(PAGE_SIZE, nid, true);
@@ -85,7 +85,7 @@ static void __init kasan_populate_pud(pud_t *pud, unsigned long addr,
 			p = early_alloc(PUD_SIZE, nid, false);
 			if (p && pud_set_huge(pud, __pa(p), PAGE_KERNEL))
 				return;
-			memblock_free_ptr(p, PUD_SIZE);
+			memblock_free(p, PUD_SIZE);
 		}
 
 		p = early_alloc(PAGE_SIZE, nid, true);
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 1e9b93b088db..c6b1213086d6 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -355,7 +355,7 @@ void __init numa_reset_distance(void)
 
 	/* numa_distance could be 1LU marking allocation failure, test cnt */
 	if (numa_distance_cnt)
-		memblock_free_ptr(numa_distance, size);
+		memblock_free(numa_distance, size);
 	numa_distance_cnt = 0;
 	numa_distance = NULL;	/* enable table creation */
 }
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index e801e30089c4..1a02b791d273 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -517,7 +517,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt)
 	}
 
 	/* free the copied physical distance table */
-	memblock_free_ptr(phys_dist, phys_size);
+	memblock_free(phys_dist, phys_size);
 	return;
 
 no_emu:
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 3500b22ff087..0c831ad78933 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -1151,7 +1151,7 @@ static void __init xen_pagetable_p2m_free(void)
 		xen_cleanhighmap(addr, addr + size);
 		size = PAGE_ALIGN(xen_start_info->nr_pages *
 				  sizeof(unsigned long));
-		memblock_phys_free(__pa(addr), size);
+		memblock_free((void *)addr, size);
 	} else {
 		xen_cleanmfnmap(addr);
 	}
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 141bb9dbd2fb..58db86f7b384 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -197,7 +197,7 @@ static void * __ref alloc_p2m_page(void)
 static void __ref free_p2m_page(void *p)
 {
 	if (unlikely(!slab_is_available())) {
-		memblock_free_ptr(p, PAGE_SIZE);
+		memblock_free(p, PAGE_SIZE);
 		return;
 	}
 
diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index 7974913af09c..cad34cec3acc 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -165,7 +165,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	memblock_phys_free(__pa(ptr), size);
+	memblock_free(ptr, size);
 }
 
 void __init setup_per_cpu_areas(void)
@@ -264,7 +264,7 @@ void __init numa_free_distance(void)
 	size = numa_distance_cnt * numa_distance_cnt *
 		sizeof(numa_distance[0]);
 
-	memblock_free_ptr(numa_distance, size);
+	memblock_free(numa_distance, size);
 	numa_distance_cnt = 0;
 	numa_distance = NULL;
 }
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index fe63d5ee201b..f62152111236 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -570,7 +570,7 @@ int __init smu_init (void)
 fail_db_node:
 	of_node_put(smu->db_node);
 fail_bootmem:
-	memblock_free_ptr(smu, sizeof(struct smu_device));
+	memblock_free(smu, sizeof(struct smu_device));
 	smu = NULL;
 fail_np:
 	of_node_put(np);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 4b671cc0a7ea..f083194e2634 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -241,7 +241,7 @@ void __init xen_swiotlb_init_early(void)
 	 */
 	rc = xen_swiotlb_fixup(start, nslabs);
 	if (rc) {
-		memblock_phys_free(__pa(start), PAGE_ALIGN(bytes));
+		memblock_free(start, PAGE_ALIGN(bytes));
 		if (nslabs > 1024 && repeat--) {
 			/* Min is 2MB */
 			nslabs = max(1024UL, ALIGN(nslabs >> 1, IO_TLB_SEGSIZE));
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index d32d41709513..484650681bee 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -118,7 +118,7 @@ int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
 int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
 
 void memblock_free_all(void);
-void memblock_free_ptr(void *ptr, size_t size);
+void memblock_free(void *ptr, size_t size);
 void reset_node_managed_pages(pg_data_t *pgdat);
 void reset_all_zones_managed_pages(void);
 
diff --git a/init/initramfs.c b/init/initramfs.c
index 1a971f070dd4..2f3d96dc3db6 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -607,7 +607,7 @@ void __weak __init free_initrd_mem(unsigned long start, unsigned long end)
 	unsigned long aligned_start = ALIGN_DOWN(start, PAGE_SIZE);
 	unsigned long aligned_end = ALIGN(end, PAGE_SIZE);
 
-	memblock_phys_free(__pa(aligned_start), aligned_end - aligned_start);
+	memblock_free((void *)aligned_start, aligned_end - aligned_start);
 #endif
 
 	free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM,
diff --git a/init/main.c b/init/main.c
index 81a79a77db46..2bfcf9054f8e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -924,7 +924,7 @@ static void __init print_unknown_bootoptions(void)
 		end += sprintf(end, " %s", *p);
 
 	pr_notice("Unknown command line parameters:%s\n", unknown_options);
-	memblock_free_ptr(unknown_options, len);
+	memblock_free(unknown_options, len);
 }
 
 asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index b9fa173e5e56..02656d7ccbfd 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -247,7 +247,7 @@ swiotlb_init(int verbose)
 	return;
 
 fail_free_mem:
-	memblock_phys_free(__pa(tlb), bytes);
+	memblock_free(tlb, bytes);
 fail:
 	pr_warn("Cannot allocate buffer");
 }
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index a8d0a58deebc..2cae1bfa6be7 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1166,9 +1166,9 @@ void __init setup_log_buf(int early)
 	return;
 
 err_free_descs:
-	memblock_free_ptr(new_descs, new_descs_size);
+	memblock_free(new_descs, new_descs_size);
 err_free_log_buf:
-	memblock_free_ptr(new_log_buf, new_log_buf_len);
+	memblock_free(new_log_buf, new_log_buf_len);
 }
 
 static bool __read_mostly ignore_loglevel;
diff --git a/lib/bootconfig.c b/lib/bootconfig.c
index 5ae248b29373..547558d80e64 100644
--- a/lib/bootconfig.c
+++ b/lib/bootconfig.c
@@ -792,7 +792,7 @@ void __init xbc_destroy_all(void)
 	xbc_data = NULL;
 	xbc_data_size = 0;
 	xbc_node_num = 0;
-	memblock_free_ptr(xbc_nodes, sizeof(struct xbc_node) * XBC_NODE_MAX);
+	memblock_free(xbc_nodes, sizeof(struct xbc_node) * XBC_NODE_MAX);
 	xbc_nodes = NULL;
 	brace_index = 0;
 }
diff --git a/lib/cpumask.c b/lib/cpumask.c
index a90786b77c1c..a971a82d2f43 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -188,7 +188,7 @@ EXPORT_SYMBOL(free_cpumask_var);
  */
 void __init free_bootmem_cpumask_var(cpumask_var_t mask)
 {
-	memblock_phys_free(__pa(mask), cpumask_size());
+	memblock_free(mask, cpumask_size());
 }
 #endif
 
diff --git a/mm/memblock.c b/mm/memblock.c
index a23baa482f3f..3b0def459f97 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -472,7 +472,7 @@ static int __init_memblock memblock_double_array(struct memblock_type *type,
 		kfree(old_array);
 	else if (old_array != memblock_memory_init_regions &&
 		 old_array != memblock_reserved_init_regions)
-		memblock_free_ptr(old_array, old_alloc_size);
+		memblock_free(old_array, old_alloc_size);
 
 	/*
 	 * Reserve the new array if that comes from the memblock.  Otherwise, we
@@ -796,14 +796,14 @@ int __init_memblock memblock_remove(phys_addr_t base, phys_addr_t size)
 }
 
 /**
- * memblock_free_ptr - free boot memory allocation
+ * memblock_free - free boot memory allocation
  * @ptr: starting address of the  boot memory allocation
  * @size: size of the boot memory block in bytes
  *
  * Free boot memory block previously allocated by memblock_alloc_xx() API.
  * The freeing memory will not be released to the buddy allocator.
  */
-void __init_memblock memblock_free_ptr(void *ptr, size_t size)
+void __init_memblock memblock_free(void *ptr, size_t size)
 {
 	if (ptr)
 		memblock_phys_free(__pa(ptr), size);
diff --git a/mm/percpu.c b/mm/percpu.c
index d65ddf6f2a35..f5b2c2ea5a54 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -2472,7 +2472,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
  */
 void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai)
 {
-	memblock_phys_free(__pa(ai), ai->__ai_size);
+	memblock_free(ai, ai->__ai_size);
 }
 
 /**
@@ -3134,7 +3134,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
 out_free:
 	pcpu_free_alloc_info(ai);
 	if (areas)
-		memblock_phys_free(__pa(areas), areas_size);
+		memblock_free(areas, areas_size);
 	return rc;
 }
 #endif /* BUILD_EMBED_FIRST_CHUNK */
@@ -3256,7 +3256,7 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
 		free_fn(page_address(pages[j]), PAGE_SIZE);
 	rc = -ENOMEM;
 out_free_ar:
-	memblock_phys_free(__pa(pages), pages_size);
+	memblock_free(pages, pages_size);
 	pcpu_free_alloc_info(ai);
 	return rc;
 }
@@ -3286,7 +3286,7 @@ static void * __init pcpu_dfl_fc_alloc(unsigned int cpu, size_t size,
 
 static void __init pcpu_dfl_fc_free(void *ptr, size_t size)
 {
-	memblock_phys_free(__pa(ptr), size);
+	memblock_free(ptr, size);
 }
 
 void __init setup_per_cpu_areas(void)
diff --git a/mm/sparse.c b/mm/sparse.c
index fc3ab8d3b6bc..e5c84b0cf0c9 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -451,7 +451,7 @@ static void *sparsemap_buf_end __meminitdata;
 static inline void __meminit sparse_buffer_free(unsigned long size)
 {
 	WARN_ON(!sparsemap_buf || size == 0);
-	memblock_phys_free(__pa(sparsemap_buf), size);
+	memblock_free(sparsemap_buf, size);
 }
 
 static void __init sparse_buffer_init(unsigned long size, int nid)
-- 
2.28.0


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^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH v2 0/6] memblock: cleanup memblock_free interface
  2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
                   ` (5 preceding siblings ...)
  2021-09-30 18:50 ` [PATCH v2 6/6] memblock: use memblock_free for freeing virtual pointers Mike Rapoport
@ 2021-09-30 21:20 ` Linus Torvalds
  2021-09-30 22:10   ` Mike Rapoport
  6 siblings, 1 reply; 9+ messages in thread
From: Linus Torvalds @ 2021-09-30 21:20 UTC (permalink / raw)
  To: Mike Rapoport
  Cc: Linux Kernel Mailing List, Andrew Morton, Christophe Leroy,
	Juergen Gross, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, KVM list, alpha, Linux ARM, linux-efi,
	open list:BROADCOM NVRAM DRIVER, Linux-MM, linux-riscv,
	linux-s390, Linux-sh list, open list:SYNOPSYS ARC ARCHITECTURE,
	linux-um, linux-usb, linuxppc-dev, linux-sparc, xen-devel

On Thu, Sep 30, 2021 at 11:50 AM Mike Rapoport <rppt@kernel.org> wrote:
>
> The first patch is a cleanup of numa_distance allocation in arch_numa I've
> spotted during the conversion.
> The second patch is a fix for Xen memory freeing on some of the error
> paths.

Well, at least patch 2 looks like something that should go into 5.15
and be marked for stable.

Patch 1 looks like a trivial local cleanup, and could go in
immediately. Patch 4 might be in that same category.

The rest look like "next merge window" to me, since they are spread
out and neither bugfixes nor tiny localized cleanups (iow renaming
functions, global resulting search-and-replace things).

So my gut feel is that two (maybe three) of these patches should go in
asap, with three (maybe four) be left for 5.16.

IOW, not trat this as a single series.

Hmm?

             Linus

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^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH v2 0/6] memblock: cleanup memblock_free interface
  2021-09-30 21:20 ` [PATCH v2 0/6] memblock: cleanup memblock_free interface Linus Torvalds
@ 2021-09-30 22:10   ` Mike Rapoport
  0 siblings, 0 replies; 9+ messages in thread
From: Mike Rapoport @ 2021-09-30 22:10 UTC (permalink / raw)
  To: Linus Torvalds
  Cc: Linux Kernel Mailing List, Andrew Morton, Christophe Leroy,
	Juergen Gross, Mike Rapoport, Shahab Vahedi, devicetree, iommu,
	kasan-dev, KVM list, alpha, Linux ARM, linux-efi,
	open list:BROADCOM NVRAM DRIVER, Linux-MM, linux-riscv,
	linux-s390, Linux-sh list, open list:SYNOPSYS ARC ARCHITECTURE,
	linux-um, linux-usb, linuxppc-dev, linux-sparc, xen-devel

On Thu, Sep 30, 2021 at 02:20:33PM -0700, Linus Torvalds wrote:
> On Thu, Sep 30, 2021 at 11:50 AM Mike Rapoport <rppt@kernel.org> wrote:
> >
> > The first patch is a cleanup of numa_distance allocation in arch_numa I've
> > spotted during the conversion.
> > The second patch is a fix for Xen memory freeing on some of the error
> > paths.
> 
> Well, at least patch 2 looks like something that should go into 5.15
> and be marked for stable.
> 
> Patch 1 looks like a trivial local cleanup, and could go in
> immediately. Patch 4 might be in that same category.
> 
> The rest look like "next merge window" to me, since they are spread
> out and neither bugfixes nor tiny localized cleanups (iow renaming
> functions, global resulting search-and-replace things).
> 
> So my gut feel is that two (maybe three) of these patches should go in
> asap, with three (maybe four) be left for 5.16.
> 
> IOW, not trat this as a single series.
> 
> Hmm?

Yes, why not :)
I'd keep patch 4 for the next merge window, does not look urgent to me.

Andrew, can you please take care of this or you'd prefer me resending
everything separately?
 
>              Linus

-- 
Sincerely yours,
Mike.

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^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2021-09-30 22:11 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-30 18:50 [PATCH v2 0/6] memblock: cleanup memblock_free interface Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 1/6] arch_numa: simplify numa_distance allocation Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 2/6] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 3/6] memblock: drop memblock_free_early_nid() and memblock_free_early() Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 4/6] memblock: stop aliasing __memblock_free_late with memblock_free_late Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 5/6] memblock: rename memblock_free to memblock_phys_free Mike Rapoport
2021-09-30 18:50 ` [PATCH v2 6/6] memblock: use memblock_free for freeing virtual pointers Mike Rapoport
2021-09-30 21:20 ` [PATCH v2 0/6] memblock: cleanup memblock_free interface Linus Torvalds
2021-09-30 22:10   ` Mike Rapoport

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