The patch titled
Subject: mm/filemap.c: fix an overly long line in read_cache_page
has been added to the -mm tree. Its filename is
mm-fix-an-overly-long-line-in-read_cache_page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-fix-an-overly-long-line-in-read_cache_page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-an-overly-long-line-in-read_cache_page.patch
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------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: mm/filemap.c: fix an overly long line in read_cache_page
Patch series "fix filler_t callback type mismatches", v2.
Casting mapping->a_ops->readpage to filler_t causes an indirect call
type mismatch with Control-Flow Integrity checking. This change fixes
the mismatch in read_cache_page_gfp and read_mapping_page by adding
using a NULL filler argument as an indication to call ->readpage
directly, and by passing the right parameter callbacks in nfs and jffs2.
This patch (of 4):
Code cleanup.
Link: http://lkml.kernel.org/r/20190520055731.24538-2-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Cc: Sami Tolvanen <samitolvanen@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/filemap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/filemap.c~mm-fix-an-overly-long-line-in-read_cache_page
+++ a/mm/filemap.c
@@ -2862,7 +2862,8 @@ struct page *read_cache_page(struct addr
int (*filler)(void *, struct page *),
void *data)
{
- return do_read_cache_page(mapping, index, filler, data, mapping_gfp_mask(mapping));
+ return do_read_cache_page(mapping, index, filler, data,
+ mapping_gfp_mask(mapping));
}
EXPORT_SYMBOL(read_cache_page);
_
Patches currently in -mm which might be from hch@xxxxxx are
mm-fix-an-overly-long-line-in-read_cache_page.patch
mm-dont-cast-readpage-to-filler_t-for-do_read_cache_page.patch
jffs2-pass-the-correct-prototype-to-read_cache_page.patch
9p-pass-the-correct-prototype-to-read_cache_page.patch
byteorder-sanity-check-toolchain-vs-kernel-endianess.patch
