[...]
On 01/08/2012 04:43 PM, Daniel Horne wrote:
Your patch for 2.6.39-1 seems to compile fine on 3.0, but not on
3.1 or
3.2. The problem seems to be that the patch re-adds the
PF_FLUSHER flag
to the sched.h, as it relies on it, but on 3.1 and on that
flag's value
is used for the PF_NPROC_EXCEEDED flag.
I'd be tempted to to swap the PF_FLUSHER check for PF_SWAPWRITE,
as all
kthreads that set PF_FLUSHER also set PF_SWAPWRITE, but there'd
be some
false-positives there and I'm not sure what effect this would have.
Hello Daniel,
I don't see any PF_FLUSHER flag in vanilla 3.2, so it shouldn't
be an issue.
There is one more problem with 3.X. I have described it here:
http://marc.info/?l=reiserfs-__devel&m=132603099732236&w=2
<http://marc.info/?l=reiserfs-devel&m=132603099732236&w=2>
Thanks,
Edward.
There isn't a PF_FLUSHER, but the value it used to have is now defined
as PF_NPROC_EXCEEDED.
Ah, you are right.
I suppose we could define PF_FLUSHER to be 0x00080000, as that doesn't
seem to be taken.
Yes, that's the way.
We need to make sure that task is a flusher, so I think using
PF_SWAPWRITE for this purpose is not a good idea..
Thanks!
Edward.
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