amend fix for MDEV-16596 - do not use CREATE_NEW flag when reopening redo log file.

vaintroub · vaintroub · commit b71c9ae030ec · 2018-07-01T14:00:29.000+01:00
use OPEN_ALWAYS instead, since we know file already exist.
diff --git a/storage/innobase/os/os0file.cc b/storage/innobase/os/os0file.cc
@@ -4326,6 +4326,7 @@ os_file_create_func(
 			&& !unbuffered_io_possible(file, OS_FILE_LOG_BLOCK_SIZE)) {
 				ut_a(CloseHandle(file));
 				attributes &= ~FILE_FLAG_NO_BUFFERING;
+				create_flag = OPEN_ALWAYS;
 				continue;
 		}
 

Original file line number	Diff line number	Diff line change
`@@ -4326,6 +4326,7 @@ os_file_create_func(`
`4326`	`4326`	`&& !unbuffered_io_possible(file, OS_FILE_LOG_BLOCK_SIZE)) {`
`4327`	`4327`	`ut_a(CloseHandle(file));`
`4328`	`4328`	`attributes &= ~FILE_FLAG_NO_BUFFERING;`
	`4329`	`+ create_flag = OPEN_ALWAYS;`
`4329`	`4330`	`continue;`
`4330`	`4331`	`}`
`4331`	`4332`