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authorChristoph Hellwig <hch@lst.de>2019-07-12 06:55:17 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 21:05:43 +0300
commitd322a8e5e3e9742fa6b76a207e5df57e03f318f9 (patch)
tree48c233bc0f8d1103ab373b0936fd72f141afb4d7 /mm/filemap.c
parent3972f6bb1c6ae1d32dcf2e4ff635d24b77f26dcb (diff)
downloadlinux-d322a8e5e3e9742fa6b76a207e5df57e03f318f9.tar.xz
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@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index f1aa20ab8434..d6f7596f148f 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2915,7 +2915,8 @@ struct page *read_cache_page(struct address_space *mapping,
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);