ocfs2: submit disk heartbeat bio using WRITE_SYNC
Under heavy I/O load, writing the disk heartbeat can be forced to wait for minutes, and this causes the node to be fenced. This patch tries to use WRITE_SYNC in submitting the heartbeat bio, so that writing the heartbeat will have a priority over other requests. Signed-off-by: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com> Acked-by: Tao Ma <tm@tao.ma> Acked-by: Sunil Mushran <sunil.mushran@gmail.com> Cc: Srinivas Eeeda <srinivas.eeda@oracle.com> Reviewed-by: Jie Liu <jeff.liu@oracle.com> Tested-by: Gurudas Pai <gurudas.pai@oracle.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -500,7 +500,7 @@ static int o2hb_issue_node_write(struct o2hb_region *reg,
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}
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atomic_inc(&write_wc->wc_num_reqs);
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submit_bio(WRITE, bio);
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submit_bio(WRITE_SYNC, bio);
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status = 0;
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bail:
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