Commit 997aef68 authored May 13, 2019 by Mike Rapoport Committed by Linus Torvalds May 14, 2019

init: provide a generic free_initmem implementation

Patch series "provide a generic free_initmem implementation", v2.

Many architectures implement free_initmem() in exactly the same or very
similar way: they wrap the call to free_initmem_default() with sometimes
different 'poison' parameter.

These patches switch those architectures to use a generic implementation
that does free_initmem_default(POISON_FREE_INITMEM).

This was inspired by Christoph's patches for free_initrd_mem [1] and I
shamelessly copied changelog entries from his patches :)

[1] https://lore.kernel.org/lkml/20190213174621.29297-1-hch@lst.de/

This patch (of 2):

For most architectures free_initmem just a wrapper for the same
free_initmem_default(-1) call.  Provide that as a generic implementation
marked __weak.

Link: http://lkml.kernel.org/r/1550515285-17446-2-git-send-email-rppt@linux.ibm.com


Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent f94f7434

arch/alpha/mm/init.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -285,9 +285,3 @@ mem_init(void)
		memblock_free_all();
		mem_init_print_info(NULL);
		}

		void
		free_initmem(void)
		{
		free_initmem_default(-1);
		}

arch/arc/mm/init.c

+0 −8

Original line number	Diff line number	Diff line
		@@ -206,11 +206,3 @@ void __init mem_init(void)
		memblock_free_all();
		mem_init_print_info(NULL);
		}

		/*
		* free_initmem: Free all the __init memory.
		*/
		void __ref free_initmem(void)
		{
		free_initmem_default(-1);
		}

arch/c6x/mm/init.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -68,8 +68,3 @@ void __init mem_init(void)

		mem_init_print_info(NULL);
		}

		void __init free_initmem(void)
		{
		free_initmem_default(-1);
		}

arch/h8300/mm/init.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -102,9 +102,3 @@ void __init mem_init(void)

		mem_init_print_info(NULL);
		}

		void
		free_initmem(void)
		{
		free_initmem_default(-1);
		}

arch/microblaze/mm/init.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -186,11 +186,6 @@ void __init setup_memory(void)
		paging_init();
		}

		void free_initmem(void)
		{
		free_initmem_default(-1);
		}

		void __init mem_init(void)
		{
		high_memory = (void *)__va(memory_start + lowmem_size - 1);

Admin message