On Tue, 2014-05-27 at 23:58 +0800, Jet Chen wrote:
> Hi Miklos,
>
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs.v22
> commit 662aa027bdaa082aa3dd21886830c97a1dd4c184 ("vfs: add RENAME_WHITEOUT")
>
> test case: lkp-wsx01/will-it-scale/lseek2
The only thing I see in that commit that could affect performance is the
slightly larger icache footprint of ext4_rename().
Is the regression reproducible across different -rc versions?
Thanks,
Miklos
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