I've been looking at Robert Love's O_STREAMING patch for the kernel :
http://www.kernel.org/pub/linux/kernel/people/rml/O_STREAMING/v2.4/O_STREAMING-rml-2.4.20-pre9-1.patch
I find that it doesn't quite work as expected with XFS. It patches the
generic_file_read/write routines to drop pages from cache list when a
file is marked as O_STREAMING, but it appears to me as if XFS doesn't
use the generic_file_write routine, but has its own version.
I have a few questions. First, does this patch make sense for XFS?
Could XFS's version of the generic_file_write routine be patched the
same way? Or perhaps there is an equivalent way to accomplish the same
thing using standard XFS.
Jim
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