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SubjectRe: weird ext2 sync behaviour


On Tue, 6 Jul 1999, Stephen C. Tweedie wrote:
> The +S bit only applies to directory updates. If a directory has the +S
> bit set then name updates in that directory are all synchronous. The
> flag is inherited by subdirs. The fact that regular files inherit it
> too doesn't matter: you still need to open(O_SYNC) explicitly to get
> synchronous metadata updates for regular files.

i see, regular files only care about filp->f_flags, right?
i guess i need to set NOATIME too, cause performance degradation
is too high.
thanks.


imel


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