| Date | Mon, 4 Jun 2018 01:47:39 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH 05/39] vfs: optionally don't account file in nr_files |
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On Tue, May 29, 2018 at 04:43:05PM +0200, Miklos Szeredi wrote: > Stacking file operations in overlay will store an extra open file for each > overlay file opened. > > The overhead is just that of "struct file" which is about 256bytes, because > overlay already pins an extra dentry and inode when the file is open, which > add up to a much larger overhead.
But that overhead is exactly what nr_files accounts for, so this looks bogus to me.
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