diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-05-13 17:18:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:47 -0700 |
| commit | f40399992a245c852ad446e265d1567010db5e10 (patch) | |
| tree | 840728fb509eed29dd784e96de1d9e5c2e86ecc1 | |
| parent | 522c99194549e50a9bd76427a06922d7a68237d6 (diff) | |
| download | linux-f40399992a245c852ad446e265d1567010db5e10.tar.bz2 | |
init: free_initmem: poison freed init memory
Various architectures including x86 poison the freed init memory. Do the
same in the generic free_initmem implementation and switch sparc32
architecture that is identical to the generic code over to it now.
Link: http://lkml.kernel.org/r/1550515285-17446-4-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>
| -rw-r--r-- | arch/sparc/mm/init_32.c | 5 | ||||
| -rw-r--r-- | init/main.c | 2 |
2 files changed, 1 insertions, 6 deletions
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 417f89d5e0b2..046ab116cc8c 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -294,11 +294,6 @@ void __init mem_init(void) mem_init_print_info(NULL); } -void free_initmem (void) -{ - free_initmem_default(POISON_FREE_INITMEM); -} - void sparc_flush_page_to_ram(struct page *page) { unsigned long vaddr = (unsigned long)page_address(page); diff --git a/init/main.c b/init/main.c index 26234570a324..5a2c69b4d7b3 100644 --- a/init/main.c +++ b/init/main.c @@ -1076,7 +1076,7 @@ static inline void mark_readonly(void) void __weak free_initmem(void) { - free_initmem_default(-1); + free_initmem_default(POISON_FREE_INITMEM); } static int __ref kernel_init(void *unused) |