Messages in this thread | | | Date | Tue, 19 Dec 2000 12:05:15 -0200 (BRST) | From | Marcelo Tosatti <> | Subject | Re: Test12 ll_rw_block error. |
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On Mon, 18 Dec 2000, Stephen C. Tweedie wrote:
> Hi, > > On Sun, Dec 17, 2000 at 12:38:17AM -0200, Marcelo Tosatti wrote: > > On Fri, 15 Dec 2000, Stephen C. Tweedie wrote: > > > > Stephen, > > > > The ->flush() operation (which we've been discussing a bit) would be very > > useful now (mainly for XFS). > > > > At page_launder(), we can call ->flush() if the given page has it defined. > > Otherwise use try_to_free_buffers() as we do now for filesystems which > > dont care about the special flushing treatment. > > As of 2.4.0test12, page_launder() will already call the > per-address-space writepage() operation for dirty pages. Do you need > something similar for clean pages too, or does Linus's new laundry > code give you what you need now?
I think the semantics of the filesystem specific ->flush and ->writepage are not the same.
Is ok for filesystem specific writepage() code to sync other "physically contiguous" dirty pages with reference to the one requested by writepage() ?
If so, it can do the same job as the ->flush() idea we've discussing.
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