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MFC r196964:

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Do not check proper request alignment here in geom_dev in production.
It will be checked any way later by g_io_check() in g_io_schedule_down().
It is only needed here to not trigger panic from additional check, when
INVARIANTS enabled. So cover it with #ifdef INVARIANTS. It saves two
64bit divisions per request.
This commit is contained in:
Alexander Motin 2009-11-17 21:45:28 +00:00
parent 9c4a609c2d
commit c4511bef96
1 changed files with 2 additions and 2 deletions
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4
sys/geom/geom_dev.c
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@ -371,14 +371,14 @@ g_dev_strategy(struct bio *bp)
cp = dev->si_drv2;
KASSERT(cp->acr || cp->acw,
("Consumer with zero access count in g_dev_strategy"));
#ifdef INVARIANTS
if ((bp->bio_offset % cp->provider->sectorsize) != 0 ||
(bp->bio_bcount % cp->provider->sectorsize) != 0) {
bp->bio_resid = bp->bio_bcount;
biofinish(bp, NULL, EINVAL);
return;
}
#endif
for (;;) {
/*
* XXX: This is not an ideal solution, but I belive it to