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authorRoger Pau Monné <royger@FreeBSD.org>2015-06-12 07:50:34 +0000
committerRoger Pau Monné <royger@FreeBSD.org>2015-06-12 07:50:34 +0000
commit112cacaee40818994261a7030e8c640ea0d54851 (patch)
tree483a8786fad7d4b3904187bc6501c46fd5d0ea5a /cddl/contrib/opensolaris/cmd/lockstat
parent3331a33a42a0eb3e4406c1ae09f873388ed42f7e (diff)
downloadsrc-112cacaee40818994261a7030e8c640ea0d54851.tar.gz
src-112cacaee40818994261a7030e8c640ea0d54851.zip
xen-blk{front/back}: remove broken FreeBSD extensions
The FreeBSD extension adds a new request type, called blkif_segment_block which has a size of 112bytes for both i386 and amd64. This is fine on amd64, since requests have a size of 112B there also. But this is not true for i386, where requests have a size of 108B. So on i386 we basically overrun the ring slot when queuing a request of type blkif_segment_block_t, which is very bad. Remove this extension (including a cleanup of the public blkif.h header file) from blkfront and blkback. Sponsored by: Citrix Systems R&D Tested-by: cperciva
Notes
Notes: svn path=/head/; revision=284296
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