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lib: reuse page_ext_data() to obtain codetag_ref

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codetag_ref_from_page_ext() reimplements the same calculation as
page_ext_data().  Reuse existing function instead.

Link: https://lkml.kernel.org/r/20240711220457.1751071-2-surenb@google.com
Fixes: dcfe378c81 ("lib: introduce support for page allocation tagging")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Suren Baghdasaryan
2024-07-11 15:04:56 -07:00
committed by Andrew Morton
parent 4810a82c8a
commit fd8acc0097
1 changed files with 1 additions and 1 deletions
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2
include/linux/pgalloc_tag.h
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@@ -15,7 +15,7 @@ extern struct page_ext_operations page_alloc_tagging_ops;
static inline union codetag_ref *codetag_ref_from_page_ext(struct page_ext *page_ext)
{
return (void *)page_ext + page_alloc_tagging_ops.offset;
return (union codetag_ref *)page_ext_data(page_ext, &page_alloc_tagging_ops);
}
static inline struct page_ext *page_ext_from_codetag_ref(union codetag_ref *ref)