Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead of ->bmap. | Date | Mon, 20 Apr 2015 12:21:42 +0100 |
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NeilBrown <neilb@suse.de> 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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