Messages in this thread | | | Date | Thu, 04 Oct 2012 08:07:20 +0200 | From | Hannes Reinecke <> | Subject | Re: [dm-devel] [PATCH v3 11/26] block: Add submit_bio_wait(), remove from md |
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On 10/02/2012 10:11 PM, Kent Overstreet wrote: > On Tue, Oct 02, 2012 at 03:41:32PM -0400, Vivek Goyal wrote: >> On Mon, Sep 24, 2012 at 03:34:51PM -0700, Kent Overstreet wrote: >>> Random cleanup - this code was duplicated and it's not really specific >>> to md. >>> >>> Also added the ability to return the actual error code. >> >> Who is going to make use of actual error code and why checking >> BIO_UPTODATE is not sufficient (as existing code is doing)? > > Some things do, though it's not common and I forget where I saw it - > checking for -ENOTSUPPORTED vs. other stuff > There are also additional error codes like -ENOLINK when the nexus is dropped. Quite useful in multipathed or clustered environs.
Cheers,
Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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