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| From | Ming Lei <ming.lei@canonical.com> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2] block: make sure big bio is splitted into at most 256 bvecs |
| Date | Fri, 12 Aug 2016 13:20:01 +0200 |
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| X-Original-Cc | Eric Wheeler <bcache@lists.ewheeler.net>, Jens Axboe <axboe@fb.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-block <linux-block@vger.kernel.org>, "open list:BCACHE (BLOCK LAYER CACHE)" <linux-bcache@vger.kernel.org>, "open list:SOFTWARE RAID (Multiple Disks) SUPPORT" <linux-raid@vger.kernel.org>, Kent Overstreet <kent.overstreet@gmail.com>, Sebastian Roesner <sroesner-kernelorg@roesner-online.de>, "4.3+" <stable@vger.kernel.org>, Shaohua Li <shli@fb.com> |
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On Thu, Aug 11, 2016 at 10:02 PM, Christoph Hellwig <hch@infradead.org> wrote: > Please just fix bcache to not submit bios larger than BIO_MAX_PAGES for > now, until we can support such callers in general and enable common > used code to do so. IMO it can't be efficient to do that in bcache because it need to figure out how many bvecs one bio includes. This patch(block: make sure big bio is splitted into at most 256 bvecs) can support such callers. Also this kind of usage does simplify drivers. Thanks, Ming > -- > To unsubscribe from this list: send the line "unsubscribe linux-block" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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Re: [PATCH v2] block: make sure big bio is splitted into at most 256 bvecs Eric Wheeler <bcache@lists.ewheeler.net> - 2016-08-11 08:40 +0200
Re: [PATCH v2] block: make sure big bio is splitted into at most 256 bvecs Christoph Hellwig <hch@infradead.org> - 2016-08-11 16:10 +0200
Re: [PATCH v2] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-08-12 13:20 +0200
Re: [PATCH v2] block: make sure big bio is splitted into at most 256 bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-08-12 18:40 +0200
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