Differential D22597 Diff 65615 head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c

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head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c

Show First 20 Lines • Show All 653 Lines • ▼ Show 20 Lines	zio_create(zio_t pio, spa_t spa, uint64_t txg, const blkptr_t *bp,

IMPLY(lsize != psize, (flags & ZIO_FLAG_RAW) != 0);		IMPLY(lsize != psize, (flags & ZIO_FLAG_RAW) != 0);

zio = kmem_cache_alloc(zio_cache, KM_SLEEP);		zio = kmem_cache_alloc(zio_cache, KM_SLEEP);
bzero(zio, sizeof (zio_t));		bzero(zio, sizeof (zio_t));

mutex_init(&zio->io_lock, NULL, MUTEX_DEFAULT, NULL);		mutex_init(&zio->io_lock, NULL, MUTEX_DEFAULT, NULL);
cv_init(&zio->io_cv, NULL, CV_DEFAULT, NULL);		cv_init(&zio->io_cv, NULL, CV_DEFAULT, NULL);
		#if defined(__FreeBSD__) && defined(_KERNEL)
		callout_init(&zio->io_timer, 1);
		#endif

list_create(&zio->io_parent_list, sizeof (zio_link_t),		list_create(&zio->io_parent_list, sizeof (zio_link_t),
offsetof(zio_link_t, zl_parent_node));		offsetof(zio_link_t, zl_parent_node));
list_create(&zio->io_child_list, sizeof (zio_link_t),		list_create(&zio->io_child_list, sizeof (zio_link_t),
offsetof(zio_link_t, zl_child_node));		offsetof(zio_link_t, zl_child_node));
metaslab_trace_init(&zio->io_alloc_list);		metaslab_trace_init(&zio->io_alloc_list);

if (vd != NULL)		if (vd != NULL)
▲ Show 20 Lines • Show All 51 Lines • ▼ Show 20 Lines	#endif
}		}

return (zio);		return (zio);
}		}

static void		static void
zio_destroy(zio_t *zio)		zio_destroy(zio_t *zio)
{		{
		#ifdef __FreeBSD__
		KASSERT(!(callout_active(&zio->io_timer) \|\|
		callout_pending(&zio->io_timer)), ("zio_destroy: timer active"));
		#endif
metaslab_trace_fini(&zio->io_alloc_list);		metaslab_trace_fini(&zio->io_alloc_list);
list_destroy(&zio->io_parent_list);		list_destroy(&zio->io_parent_list);
list_destroy(&zio->io_child_list);		list_destroy(&zio->io_child_list);
mutex_destroy(&zio->io_lock);		mutex_destroy(&zio->io_lock);
cv_destroy(&zio->io_cv);		cv_destroy(&zio->io_cv);
kmem_cache_free(zio_cache, zio);		kmem_cache_free(zio_cache, zio);
}		}

▲ Show 20 Lines • Show All 968 Lines • ▼ Show 20 Lines	if (now >= zio->io_target_timestamp) {

zio_interrupt(zio);		zio_interrupt(zio);
} else {		} else {
hrtime_t diff = zio->io_target_timestamp - now;		hrtime_t diff = zio->io_target_timestamp - now;

DTRACE_PROBE3(zio__delay__hit, zio_t *, zio,		DTRACE_PROBE3(zio__delay__hit, zio_t *, zio,
hrtime_t, now, hrtime_t, diff);		hrtime_t, now, hrtime_t, diff);

		#ifdef __FreeBSD__
		callout_reset_sbt(&zio->io_timer, nstosbt(diff), 0,
		(void ()(void ))zio_interrupt, zio, C_HARDCLOCK);
		#else
(void) timeout_generic(CALLOUT_NORMAL,		(void) timeout_generic(CALLOUT_NORMAL,
(void ()(void ))zio_interrupt, zio, diff, 1, 0);		(void ()(void ))zio_interrupt, zio, diff, 1, 0);
		#endif
}		}

return;		return;
}		}
#endif		#endif

DTRACE_PROBE1(zio__delay__skip, zio_t *, zio);		DTRACE_PROBE1(zio__delay__skip, zio_t *, zio);
zio_interrupt(zio);		zio_interrupt(zio);
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