Re: [PATCH] nanosecond filesystem support???

From: Jeff Chua
Date: Tue Feb 13 2007 - 04:10:37 EST


On 2/13/07, Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:
it was there to avoid the following situation:
on disk it's still in seconds


On 2/13/07, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

If you want ns resolution you need a file system that supports it:
that's currently XFS, JFS, NTFS/CIFS (resolution is lower, but < 1s), NFSv[34], UDF,
with suitable servers, tmpfs/ramfs/hugetlbfs. ext4 ns support is being worked on,

BTW the real max resolution supported in the kernel right now is jiffies.


Andy, Arjan,

Ok, I got it now. Well, after reboot, I ran stat() and since the info
has to come from disk, now the nanosec returned is zero!

Thanks for all your help.

Jeff.
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