Cleanup: Aligned InnoDB index page header access

ut_align_down(): Preserve the const qualifier. Use C++ casts.

ha_delete_hash_node(): Correct an assertion expression.

fil_page_get_type(): Perform an assumed-aligned read.

page_align(): Preserve the const qualifier. Assume (some) alignment.

page_get_max_trx_id(): Check the index page type.

page_header_get_field(): Perform an assumed-aligned read.

page_get_autoinc(): Perform an assumed-aligned read.

page_dir_get_nth_slot(): Perform an assumed-aligned read.
Preserve the const qualifier.

1 files changed, 1 insertions, 1 deletions

diff --git a/storage/innobase/include/fsp0fsp.h b/storage/innobase/include/fsp0fsp.h
index 48a1ef5de8b..00294cf5fb4 100644
--- a/storage/innobase/include/fsp0fsp.h
+++ b/storage/innobase/include/fsp0fsp.h
@@ -580,7 +580,7 @@ void fil_block_reset_type(const buf_block_t& block, ulint type, mtr_t* mtr);
 @return page type */
 inline uint16_t fil_page_get_type(const byte* page)
 {
-	return mach_read_from_2(page + FIL_PAGE_TYPE);
+  return mach_read_from_2(my_assume_aligned<2>(page + FIL_PAGE_TYPE));
 }
 
 /** Check (and if needed, reset) the page type.