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Fix bug #12424282 - INNODB PERFORMANCE SCHEMA: Double accounting for OS_AIO_SYNC

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I/O in os_aio_func.

Approved by Sunny Bains
This commit is contained in:
Jimmy Yang 2011-05-04 00:09:48 -07:00
parent 9ebbd13d68
commit 6ff930c46e
1 changed files with 10 additions and 3 deletions
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13
storage/innobase/os/os0file.c
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@ -4051,16 +4051,23 @@ os_aio_func(
Windows async i/o, Windows does not allow us to use
ordinary synchronous os_file_read etc. on the same file,
therefore we have built a special mechanism for synchronous
wait in the Windows case. */
wait in the Windows case.
Also note that the Performance Schema instrumentation has
been performed by current os_aio_func()'s wrapper function
pfs_os_aio_func(). So we would no longer need to call
Performance Schema instrumented os_file_read() and
os_file_write(). Instead, we should use os_file_read_func()
and os_file_write_func() */
if (type == OS_FILE_READ) {
return(os_file_read(file, buf, offset,
return(os_file_read_func(file, buf, offset,
offset_high, n));
}
ut_a(type == OS_FILE_WRITE);
return(os_file_write(name, file, buf, offset, offset_high, n));
return(os_file_write_func(name, file, buf, offset,
offset_high, n));
}
try_again: