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SubjectRe: Announcement: STEC EnhanceIO SSD caching software for Linux kernel
On Sat, Jan 12, 2013 at 01:18:37AM +0800, Amit Kale wrote:
> Greetings,
>
> STEC is happy to announce hosting of our EnhanceIO SSD caching software on github.
> We would like to invite kernel hackers to try it. We'll appreciate your
> valuable feedback to help us improve it to the standards of Linux kernel
> source code. We hope to eventually submit it for a possible inclusion in
> Linux kernel.

If you are serious about inclusion in Linux kernel sources, you may want to
act on these comments:
- kernel API wrappers should be removed
- your ioctl won't work with 32-bit userspace on 64-bit kernel (differences
in size and padding of struct cache_rec_short fields)
- volatiles (probably) should go, see Documentation/volatile-considered-harmful.txt
- printk wrappers can be easily replaced by pr_debug/pr_info/etc
- the code should be more or less checkpatch.pl clean
- this is buggy: VERIFY(spin_is_locked((sl))); - spin_is_locked always returns
0 on !CONFIG_SMP && !CONFIG_DEBUG_SPINLOCK

> (...)
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FYI, most people are annoyed when they see those kind of threats on public
mailing lists...

Marcin


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