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authorRoger Pau Monne <roger.pau@citrix.com>2013-03-18 17:49:32 +0100
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-03-19 12:50:00 -0400
commitffb1dabd1eb10c76a1e7af62f75a1aaa8d590b5a (patch)
tree4590ae87a8f4ca9bfd3a91dbe1a34abec523b48d /drivers/block/xen-blkfront.c
parent155b7edb51430a280f86c1e21b7be308b0d219d4 (diff)
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xen-blkback: don't store dev_bus_addr
dev_bus_addr returned in the grant ref map operation is the mfn of the passed page, there's no need to store it in the persistent grant entry, since we can always get it provided that we have the page. This reduces the memory overhead of persistent grants in blkback. While at it, rename the 'seg[i].buf' to be 'seg[i].offset' as it makes much more sense - as we use that value in bio_add_page which as the fourth argument expects the offset. We hadn't used the physical address as part of this at all. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: xen-devel@lists.xen.org [v1: s/buf/offset/] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkfront.c')
0 files changed, 0 insertions, 0 deletions
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