Messages in this thread | | | Date | Wed, 16 Nov 2022 20:17:53 +0800 | Subject | Re: [PATCH v3 1/2] fscache,cachefiles: add prepare_ondemand_read() callback | From | Jingbo Xu <> |
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Hi Jeff,
Thanks for the comment!
On 11/16/22 7:58 PM, Jeff Layton wrote:
>> >> -/* >> - * Prepare a read operation, shortening it to a cached/uncached >> - * boundary as appropriate. >> - */ >> -static enum netfs_io_source cachefiles_prepare_read(struct netfs_io_subrequest *subreq, >> - loff_t i_size) >> +static enum netfs_io_source cachefiles_do_prepare_read(struct netfs_cache_resources *cres, >> + loff_t *_start, size_t *_len, >> + unsigned long *_flags, loff_t i_size) > > _start is never changed, so it should be passed by value instead of by > pointer.
Yeah, start is indeed unchanged, and I think it's also reasonable to pass it by value rather than by pointer.
> I'd also reverse the position of the arguments for _flags and > i_size. Otherwise, the CPU/compiler have to shuffle things around more > in cachefiles_prepare_ondemand_read before they call this.
Yeah I didn't notice the details.
I will fix the above two issues in a quick v4 version.
Many thanks for the feedback.
-- Thanks, Jingbo
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