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mariadb/storage/innobase/buf
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Marko Mäkelä f1a8b7fe95 MDEV-36646: innodb_buffer_pool_size change aborted 
A statement SET GLOBAL innodb_buffer_pool_size=...
could fail for no good reason when the buffer pool contains many
pages that can actually be evicted.

buf_flush_LRU_list_batch(): Keep evicting as long as the buffer pool
is being shrunk, for at most innodb_lru_scan_depth extra blocks.
Disregard the flush limit for pages that are marked as freed in files.

buf_flush_LRU_to_withdraw(): Update the to_withdraw target during
buf_flush_LRU_list_batch().

buf_pool_t::will_be_withdrawn(): Allow also ptr=nullptr (the condition
will not hold for it).

This fixes a regression that was introduced in
commit b6923420f3 (MDEV-29445)
and caught by the test innodb.temp_truncate_freed in MariaDB Server 11.4.

Tested by: Thirunarayanan Balathandayuthapani
Reviewed by: Thirunarayanan Balathandayuthapani
2025-04-23 15:42:12 +03:00
..
buf0buddy.cc MDEV-29445 fixup: debug assertion 2025-04-14 08:33:10 +03:00
buf0buf.cc MDEV-36646: innodb_buffer_pool_size change aborted 2025-04-23 15:42:12 +03:00
buf0checksum.cc Cleanup: Replace ut_crc32c(x,y) with my_crc32c(0,x,y) 2022-01-21 16:13:04 +02:00
buf0dblwr.cc MDEV-21923: LSN allocation is a bottleneck 2025-04-10 13:02:17 +03:00
buf0dump.cc MDEV-29445: Reimplement SET GLOBAL innodb_buffer_pool_size 2025-03-26 17:05:44 +02:00
buf0flu.cc MDEV-36646: innodb_buffer_pool_size change aborted 2025-04-23 15:42:12 +03:00
buf0lru.cc MDEV-29445: Reimplement SET GLOBAL innodb_buffer_pool_size 2025-03-26 17:05:44 +02:00
buf0rea.cc MDEV-29445: Reimplement SET GLOBAL innodb_buffer_pool_size 2025-03-26 17:05:44 +02:00