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Applying InnoDB plugin snashot

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Detailed revision comments:

r6064 | calvin | 2009-10-13 18:23:35 +0300 (Tue, 13 Oct 2009) | 4 lines
branches/zip: non-functional changes

Changes from MySQL to fix build issue.

r6065 | inaam | 2009-10-13 20:43:13 +0300 (Tue, 13 Oct 2009) | 7 lines
branches/zip rb://182

Call fsync() on datafiles after a batch of pages is written to disk
even when skip_innodb_doublewrite is set.

Approved by: Heikki
This commit is contained in:
Sergey Vojtovich 2009-11-03 14:02:19 +04:00
parent ed612249c5
commit 280b7ee291
1 changed files with 26 additions and 16 deletions
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42
storage/innodb_plugin/buf/buf0flu.c
View file

@ -303,6 +303,28 @@ buf_flush_write_complete(
}
}
/********************************************************************//**
Flush a batch of writes to the datafiles that have already been
written by the OS. */
static
void
buf_flush_sync_datafiles(void)
/*==========================*/
{
/* Wake possible simulated aio thread to actually post the
writes to the operating system */
os_aio_simulated_wake_handler_threads();
/* Wait that all async writes to tablespaces have been posted to
the OS */
os_aio_wait_until_no_pending_writes();
/* Now we flush the data to disk (for example, with fsync) */
fil_flush_file_spaces(FIL_TABLESPACE);
return;
}
/********************************************************************//**
Flushes possible buffered writes from the doublewrite memory buffer to disk,
and also wakes up the aio thread if simulated aio is used. It is very
@ -320,8 +342,8 @@ buf_flush_buffered_writes(void)
ulint i;
if (!srv_use_doublewrite_buf || trx_doublewrite == NULL) {
os_aio_simulated_wake_handler_threads();
/* Sync the writes to the disk. */
buf_flush_sync_datafiles();
return;
}
@ -529,22 +551,10 @@ flush:
buf_LRU_stat_inc_io();
}
/* Wake possible simulated aio thread to actually post the
writes to the operating system */
os_aio_simulated_wake_handler_threads();
/* Wait that all async writes to tablespaces have been posted to
the OS */
os_aio_wait_until_no_pending_writes();
/* Now we flush the data to disk (for example, with fsync) */
fil_flush_file_spaces(FIL_TABLESPACE);
/* Sync the writes to the disk. */
buf_flush_sync_datafiles();
/* We can now reuse the doublewrite memory buffer: */
trx_doublewrite->first_free = 0;
mutex_exit(&(trx_doublewrite->mutex));