On Sat, 4 Aug 2007, Linus Torvalds wrote:

Well, we could make it the default for the kernel (possibly under a 
"fast-atime" config option), and then people can add "atime" or "noatime" 
as they wish, since mount has supported _those_ options for a long time.

Side note: while I think the fsync() behaviour is more irritating than 
atime, that one is harder to fix. I think it's reasonable to have 
"relatime" as a default strategy for the kernel, but I don't think it's 
necessarily at all as reasonable to change a filesystem-specific ordering 
constraint.

			Linus

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