Answers:
我记得更改,但不记得日期。这似乎是又回到2007年根据这篇文章,relatime 2.6.20中是可用的,并且它之后的几个版本成为默认选项(2.6.24)可能。
编辑: man mount
/ relatime说2.6.30。
commit 0a1c01c9477602ee8b44548a9405b2c1d587b5a2 Author: Matthew Garrett <mjg@redhat.com> Date: Thu Mar 26 17:53:14 2009 +0000 Make relatime default Change the default behaviour of the kernel to use relatime for all filesystems. This can be overridden with the "strictatime" mount option. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
从RHEL / CentOS / Scientific Linux版本6开始,relatime mount选项是默认默认选项(请参阅此处)。
如果使用relatime选项,则在以下情况下更新atime: