[PATCH 21/24] perf session: Don't warn about out of order event if write_backward is used

From: Wang Nan If write_backward attribute is set, records are written into kernel ring buffer from end to beginning, but read from beginning to end. To avoid 'XX out of order events recorded' warning message (timestamps of records is in reverse order when using

[PATCH 21/24] perf session: Don't warn about out of order event if write_backward is used

From: Wang Nan If write_backward attribute is set, records are written into kernel ring buffer from end to beginning, but read from beginning to end. To avoid 'XX out of order events recorded' warning message (timestamps of records is in reverse order when using write_backward), suppress the