Messages in this thread | | | Date | Wed, 12 Dec 2007 14:15:35 -0500 | From | Dave Jones <> | Subject | Re: [PATCH -mm] x86 boot : export boot_params via sysfs (forward to Greg) |
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On Wed, Dec 12, 2007 at 09:45:07AM -0800, Greg Kroah-Hartman wrote:
> Well, I respectively disagree. sysfs is NOT for exporting various > binary kernel structures to userspace directly. Again, the binary files > in sysfs are for chunks of memory that are PASS-THROUGH from hardware to > userspace, with no kernel intervention at all. > If you really need such a thing, use debugfs, as the only rule for > debugfs is that there is no rules :)
Whilst on the subject, why wasn't /sys/slab done in debugfs ? The one-value-per-file thing has gone taken to ridiculous extremes there.
Having 3641 sysfs files that most people never use permanently taking up memory seems to be a massive waste of resources.
Nearly a third of all the sysfs files I have on my system belong to that subtree, which is just.. wow.
Dave
-- http://www.codemonkey.org.uk
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