Messages in this thread | | | From | Nick Piggin <> | Subject | [rfc] 2.6.19-rc1-git5: consolidation of file backed fault handlers | Date | Mon, 9 Oct 2006 18:12:06 +0200 (CEST) |
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OK, I've cleaned up and further improved this patchset, removed duplication while retaining legacy nopage handling, restored page_mkwrite to the ->fault path (due to lack of users upstream to attempt a conversion), converted the rest of the filesystems to use ->fault, restored MAP_POPULATE and population of remap_file_pages pages, replaced nopfn completely, and removed NOPAGE_REFAULT because that can be done easily with ->fault.
In the process: - GFS2, OCFS2 theoretically get nonlinear mapping support - Nonlinear mappings gain page_mkwrite and dirty page throttling support - Nonlinear mappings gain the fault vs truncate race fix introduced for linear
All pretty much for free.
This is lightly compile tested only, unlike the last set, mainly because it is presently just an RFC regarding the direction I'm going (and it's bedtime).
Nick
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