[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] drivers: xen-blkfront: blkif_recover: recheck feature-persistent
El 26/05/15 a les 2.11, Bob Liu ha escrit: > When migrate from !feature-persistent host to feature-persistent host, domU > still think new host/backend don't support persistent. > Dmesg like: > backed has not unmapped grant: 839 > backed has not unmapped grant: 773 > backed has not unmapped grant: 773 > backed has not unmapped grant: 773 > backed has not unmapped grant: 839 > > We should recheck whether the new backend support feature-persistent during > blkif_recover(). Right, we recheck for indirect-descriptors but not persistent grants. Do you think it makes sense to split the part of blkfront_connect that checks for optional features, like persistent grants, indirect descriptors and flush/barrier features to a separate function and call it from both blkfront_connect and blkif_recover? Roger. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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