mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-16 03:52:35 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

MDEV-21024: Cleanup XDES_CLEAN_BIT

Browse source 
The XDES_CLEAN_BIT is always set for every element of
the page allocation bitmap in the extent descriptor pages.
Do not bother touching it, to avoid redundant writes.
This commit is contained in:
Marko Mäkelä 2019-11-11 14:18:50 +02:00
parent 878bc854d9
commit 142442d571
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
storage/innobase/fsp/fsp0fsp.cc
View file

@ -1524,7 +1524,8 @@ fsp_free_page(
const ulint bit = offset % FSP_EXTENT_SIZE; const ulint bit = offset % FSP_EXTENT_SIZE;
xdes_set_bit(descr, XDES_FREE_BIT, bit, TRUE, mtr); xdes_set_bit(descr, XDES_FREE_BIT, bit, TRUE, mtr);
xdes_set_bit(descr, XDES_CLEAN_BIT, bit, TRUE, mtr); /* xdes_init() should have set all XDES_CLEAN_BIT */
ut_ad(xdes_get_bit(descr, XDES_CLEAN_BIT, bit));
frag_n_used = mtr_read_ulint(header + FSP_FRAG_N_USED, MLOG_4BYTES, frag_n_used = mtr_read_ulint(header + FSP_FRAG_N_USED, MLOG_4BYTES,
mtr); mtr);
@ -3085,7 +3086,8 @@ fseg_free_page_low(
const ulint bit = offset % FSP_EXTENT_SIZE; const ulint bit = offset % FSP_EXTENT_SIZE;
xdes_set_bit(descr, XDES_FREE_BIT, bit, TRUE, mtr); xdes_set_bit(descr, XDES_FREE_BIT, bit, TRUE, mtr);
xdes_set_bit(descr, XDES_CLEAN_BIT, bit, TRUE, mtr); /* xdes_init() should have set all XDES_CLEAN_BIT */
ut_ad(xdes_get_bit(descr, XDES_CLEAN_BIT, bit));
if (xdes_is_free(descr, mtr)) { if (xdes_is_free(descr, mtr)) {
/* The extent has become free: free it to space */ /* The extent has become free: free it to space */