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Bug#16409715 ASSERT SYNC_THREAD_LEVELS_G(ARRAY, LEVEL - 1, TRUE),

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IBUF, FREE SPACE MANAGEMENT

ibuf_merge_or_delete_for_page(): Declare the user index page latched
for UNIV_SYNC_DEBUG after opening the change buffer cursor. This
should avoid the bogus latching order violation.

ibuf_delete_rec(): Add assertions to the callers, checking that the
mini-transaction was committed when the function returned TRUE. This
is a non-functional change, just clarifying the code.

rb#2136 approved by Kevin Lewis
This commit is contained in:
Marko Mäkelä 2013-03-12 13:58:10 +02:00
parent b5f4385ee3
commit d910c5acaf
1 changed files with 9 additions and 7 deletions
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16
storage/innobase/ibuf/ibuf0ibuf.c
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@ -4271,7 +4271,7 @@ Deletes from ibuf the record on which pcur is positioned. If we have to
resort to a pessimistic delete, this function commits mtr and closes
the cursor.
@return TRUE if mtr was committed and pcur closed in this operation */
static
static __attribute__((warn_unused_result))
ibool
ibuf_delete_rec(
/*============*/
@ -4577,6 +4577,12 @@ ibuf_merge_or_delete_for_page(
loop:
ibuf_mtr_start(&mtr);
/* Position pcur in the insert buffer at the first entry for this
index page */
btr_pcur_open_on_user_rec(
ibuf->index, search_tuple, PAGE_CUR_GE, BTR_MODIFY_LEAF,
&pcur, &mtr);
if (block) {
ibool success;
@ -4595,12 +4601,6 @@ loop:
buf_block_dbg_add_level(block, SYNC_IBUF_TREE_NODE);
}
/* Position pcur in the insert buffer at the first entry for this
index page */
btr_pcur_open_on_user_rec(
ibuf->index, search_tuple, PAGE_CUR_GE, BTR_MODIFY_LEAF,
&pcur, &mtr);
if (!btr_pcur_is_on_user_rec(&pcur)) {
ut_ad(btr_pcur_is_after_last_in_tree(&pcur, &mtr));
@ -4743,6 +4743,7 @@ loop:
/* Deletion was pessimistic and mtr was committed:
we start from the beginning again */
ut_ad(mtr.state == MTR_COMMITTED);
goto loop;
} else if (btr_pcur_is_after_last_on_page(&pcur)) {
ibuf_mtr_commit(&mtr);
@ -4873,6 +4874,7 @@ loop:
/* Deletion was pessimistic and mtr was committed:
we start from the beginning again */
ut_ad(mtr.state == MTR_COMMITTED);
goto loop;
}