Messages in this thread | | | From | Nick Piggin <> | Subject | Re: [PATCH 09/28] FS-Cache: Release page->private after failed readahead [try #2] | Date | Tue, 18 Dec 2007 18:03:13 +1100 |
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On Tuesday 18 December 2007 09:42, David Howells wrote: > Nick Piggin <nickpiggin@yahoo.com.au> wrote: > > This is pretty nasty. > > Why? If the fs doesn't set PG_private or PG_fscache on any pages before > calling read_cache_pages(), there's no difference.
It is conceptually wrong.
> Furthermore, the differences only crop up in the error handling paths.
That doesn't make it any better.
> > I would suggest either to have the function return the number of pages > > that were added to pagecache, > > Which helps how?
So the caller can do their own error handling / cleanup.
> > or just open code it. > > Well, I could give an alternative read_cache_pages(), I suppose, for just > this situation, but that means there are two parallel functions which then > both need to be maintained.
I would be OK with that.
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