Date: Sat, 7 Aug 1999 01:13:24 -0700 (PDT) From: Greg Lehey <grog@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/vinum vinumrequest.c Message-ID: <199908070813.BAA67401@freefall.freebsd.org>
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grog 1999/08/07 01:13:24 PDT
Modified files:
sys/dev/vinum vinumrequest.c
Log:
Import RAID-5 code.
Add Cybernet copyright.
OK'd-by: Chuck Jacobus <chuck@cybernet.com>
logrq: save device major and minor numbers to compensate for lost
dev_t.
launch_requests: Don't issue requests which are marked
XFR_BAD_SUBDISK. This may make things easier in bre().
bre:
Rearrange.
- Change some comments
- Recognize holes in plex structure. Formerly this could lead to
incorrect write to the plex. Return REQUEST_DEGRADED on a read
request, but carry on to the bitter end on a write request, and
mark the requests for the inaccessible subdisks with
XFR_BAD_SUBDISK.
- return REQUEST_EOF if the requested transfer goes beyond the end
of the plex. This is not an error, since other plexes may go
further into the volume address space.
build_read_request:
Handle REQUEST_DEGRADED returned from bre().
sdio:
Lock buffer before issuing the requests.
Revision Changes Path
1.29 +155 -86 src/sys/dev/vinum/vinumrequest.c
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