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| author | Alexander Motin <mav@FreeBSD.org> | 2013-06-18 09:29:30 +0000 |
|---|---|---|
| committer | Alexander Motin <mav@FreeBSD.org> | 2013-06-18 09:29:30 +0000 |
| commit | 9f9471e8b35430627ef9b3c1f4f7fbcf403d4a05 (patch) | |
| tree | c60189b7431b2807f2840d4be1db7043301d8213 /sys/geom | |
| parent | caa5855d32fb0fd7abb227cee5898dc515b46764 (diff) | |
| download | src-test2-9f9471e8b35430627ef9b3c1f4f7fbcf403d4a05.tar.gz src-test2-9f9471e8b35430627ef9b3c1f4f7fbcf403d4a05.zip | |
Notes
Diffstat (limited to 'sys/geom')
| -rw-r--r-- | sys/geom/geom_io.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/geom/geom_io.c b/sys/geom/geom_io.c index f6111684bc2b..25a90de242da 100644 --- a/sys/geom/geom_io.c +++ b/sys/geom/geom_io.c @@ -718,8 +718,17 @@ g_io_schedule_down(struct thread *tp __unused) */ excess = bp->bio_offset + bp->bio_length; if (excess > bp->bio_to->mediasize) { + KASSERT((bp->bio_flags & BIO_UNMAPPED) == 0 || + round_page(bp->bio_ma_offset + + bp->bio_length) / PAGE_SIZE == bp->bio_ma_n, + ("excess bio %p too short", bp)); excess -= bp->bio_to->mediasize; bp->bio_length -= excess; + if ((bp->bio_flags & BIO_UNMAPPED) != 0) { + bp->bio_ma_n = round_page( + bp->bio_ma_offset + + bp->bio_length) / PAGE_SIZE; + } if (excess > 0) CTR3(KTR_GEOM, "g_down truncated bio " "%p provider %s by %d", bp, |