Re: [PATCH 09/28] FS-Cache: Release page->private after failed readahead [try #2]

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Nick Piggin <nickpiggin@xxxxxxxxxxxx> 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.

Furthermore, the differences only crop up in the error handling paths.

> I would suggest either to have the function return the number of pages that
> were added to pagecache,

Which helps how?

> 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.

David

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