Jeff Liu
2013-Jun-29 04:00 UTC
[Ocfs2-devel] [RESNET PATCH 1/4] ocfs2: submit disk heartbeat bio using WRITE_SYNC
From: Noboru Iwamatsu <n_iwamatsu at jp.fujitsu.com> 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 at jp.fujitsu.com> Acked-by: Tao Ma <tm at tao.ma> Acked-by: Sunil Mushran <sunil.mushran at gmail.com> CC: Srinivas Eeeda <srinivas.eeda at oracle.com> Reviewed-by: Jie Liu <jeff.liu at oracle.com> Tested-by: Gurudas Pai <gurudas.pai at oracle.com> --- fs/ocfs2/cluster/heartbeat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 42252bf..f89b46b 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -500,7 +500,7 @@ static int o2hb_issue_node_write(struct o2hb_region *reg, } atomic_inc(&write_wc->wc_num_reqs); - submit_bio(WRITE, bio); + submit_bio(WRITE_SYNC, bio); status = 0; bail: -- 1.7.9.5