42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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#ifndef _SYS_FS_ZFS_DELAY_H
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#define _SYS_FS_ZFS_DELAY_H
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#include <sys/timer.h>
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/*
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* Generic wrapper to sleep until a given time.
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*/
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#define zfs_sleep_until(wakeup) \
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do { \
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hrtime_t delta = wakeup - gethrtime(); \
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\
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if (delta > 0) { \
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unsigned long delta_us; \
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delta_us = delta / (NANOSEC / MICROSEC); \
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usleep_range(delta_us, delta_us + 100); \
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} \
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} while (0)
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#endif /* _SYS_FS_ZFS_DELAY_H */
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