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由 Zhen Wei 提交于
The patch allows the ocfs2 heartbeat thread to prioritize I/O which may help cut down on spurious fencing. Most of this will be in the tools - we can have a pid configfs attribute and let userspace (ocfs2_hb_ctl) calls the ioprio_set syscall after starting heartbeat, but only cfq scheduler supports I/O priorities now. Signed-off-by: NZhen Wei <zwei@novell.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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