If you want a feature merged upstream it is in your basic interest to
keep it in a tidy, cleanly split up series of patches, with no
development history in the patches - and frequently post those patches
to lkml. (it also makes sense tocount the number of times you've posted
them and make that visible in the postings: so the first series should
be titled "perform2, v1", the second one "perfmon2, v2" - that way when
people see "perform2, v25" they'll get a rough picture of the maturity
of the patchset)
Ingo
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