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Subject[PATCH 7/8] initramfs: proide a generic free_initrd_mem implementation
Date
For most architectures free_initrd_mem just expands to the same
free_reserved_area call. Provide that as a generic implementation
marked __weak.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/alpha/mm/init.c | 8 --------
arch/arc/mm/init.c | 7 -------
arch/c6x/mm/init.c | 7 -------
arch/h8300/mm/init.c | 8 --------
arch/m68k/mm/init.c | 7 -------
arch/microblaze/mm/init.c | 7 -------
arch/nds32/mm/init.c | 7 -------
arch/nios2/mm/init.c | 7 -------
arch/openrisc/mm/init.c | 7 -------
arch/parisc/mm/init.c | 7 -------
arch/powerpc/mm/mem.c | 7 -------
arch/sh/mm/init.c | 7 -------
arch/um/kernel/mem.c | 7 -------
arch/unicore32/mm/init.c | 7 -------
init/initramfs.c | 5 +++++
15 files changed, 5 insertions(+), 100 deletions(-)

diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index a42fc5c4db89..97f4940f11e3 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -291,11 +291,3 @@ free_initmem(void)
{
free_initmem_default(-1);
}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void
-free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index e1ab2d7f1d64..c357a3bd1532 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -214,10 +214,3 @@ void __ref free_initmem(void)
{
free_initmem_default(-1);
}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index af5ada0520be..5504b71254f6 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -67,13 +67,6 @@ void __init mem_init(void)
mem_init_print_info(NULL);
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
void __init free_initmem(void)
{
free_initmem_default(-1);
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 6519252ac4db..2eff00de2b78 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -101,14 +101,6 @@ void __init mem_init(void)
mem_init_print_info(NULL);
}

-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
void
free_initmem(void)
{
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 933c33e76a48..c62e41563bb9 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -144,10 +144,3 @@ void __init mem_init(void)
init_pointer_tables();
mem_init_print_info(NULL);
}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index b17fd8aafd64..3bd32de46abb 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -186,13 +186,6 @@ void __init setup_memory(void)
paging_init();
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
void free_initmem(void)
{
free_initmem_default(-1);
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
index 253f79fc7196..c02e10ac5e76 100644
--- a/arch/nds32/mm/init.c
+++ b/arch/nds32/mm/init.c
@@ -249,13 +249,6 @@ void free_initmem(void)
free_initmem_default(-1);
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
void __set_fixmap(enum fixed_addresses idx,
phys_addr_t phys, pgprot_t flags)
{
diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index 16cea5776b87..60736a725883 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -82,13 +82,6 @@ void __init mmu_init(void)
flush_tlb_all();
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
void __ref free_initmem(void)
{
free_initmem_default(-1);
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index d157310eb377..d0d94a4391d4 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -221,13 +221,6 @@ void __init mem_init(void)
return;
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
void free_initmem(void)
{
free_initmem_default(-1);
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 059187a3ded7..1b445e206ca8 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -935,10 +935,3 @@ void flush_tlb_all(void)
spin_unlock(&sid_lock);
}
#endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 33cc6f676fa6..976c706a64e2 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -388,13 +388,6 @@ void free_initmem(void)
free_initmem_default(POISON_FREE_INITMEM);
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
/*
* This is called when a page has been modified by the kernel.
* It just marks the page as not i-cache clean. We do the i-cache
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index a8e5c0e00fca..2fa824336ec2 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -410,13 +410,6 @@ void free_initmem(void)
free_initmem_default(-1);
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
#ifdef CONFIG_MEMORY_HOTPLUG
int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
bool want_memblock)
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 799b571a8f88..48b24b63b10d 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -172,13 +172,6 @@ void free_initmem(void)
{
}

-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
/* Allocate and free page tables. */

pgd_t *pgd_alloc(struct mm_struct *mm)
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index e3f4f791e10a..01271ce52ef9 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -316,10 +316,3 @@ void free_initmem(void)
{
free_initmem_default(-1);
}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/init/initramfs.c b/init/initramfs.c
index cf8bf014873f..f3aaa58ac63d 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -527,6 +527,11 @@ extern unsigned long __initramfs_size;
#include <linux/initrd.h>
#include <linux/kexec.h>

+void __weak free_initrd_mem(unsigned long start, unsigned long end)
+{
+ free_reserved_area((void *)start, (void *)end, -1, "initrd");
+}
+
#ifdef CONFIG_KEXEC_CORE
static bool kexec_free_initrd(void)
{
--
2.20.1
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