Re: [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead of ->bmap.

[David Howells]

NeilBrown <neilb@xxxxxxx> wrote:

> @@ -721,24 +733,45 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op,

We can actually do better than this what you've done here for
cachefiles_read_or_alloc_pages().  We can use SEEK_DATA to check the beginning
of a run of pages and then SEEK_HOLE to see how many pages are covered.

David
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