Messages in this thread | | | Date | Mon, 07 Aug 2000 16:08:37 -0600 | From | "Jeff V. Merkey" <> | Subject | Re: NWFS readpage() in 2.2.X -- after_unlock_page() not exported |
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call __free_page() after the IO completes seems to be the deal here. This is very confusing in the code FYI.
Jeff
"Jeff V. Merkey" wrote: > > "Jeff V. Merkey" wrote: > > > > Another item that's somewhat confusing in the code is that > generic_readpage() is FREEING the page by setting PG_free_after in the > page->flags then calling __free_page() in after_unlock_page() which > would seem to indicate that right after going through the overhead of > writing data into the page, we free it after the IO completes (???). > Doesn't the page with the data we just copied get cached in the page > cache, or is there yet another copy operation somewhere else? > > What's the deal here? > > Jeff
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