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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-08-24 20:39:18 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-08-25 14:40:08 -0400
commitbbf58bf3488e41f346536aa89d62bdf2fe771128 (patch)
treec15f4869e0a3c5b4e1547260b555d863da12c0aa /fs/nfs/flexfilelayout
parent266d12d42ebd2587d3d0e8c4a4e54bfb5ed29543 (diff)
NFSv4.2/pnfs: Make the layoutstats timer configurable
Allow advanced users to set the layoutstats timer in order to lengthen or shorten the period between layoutstat transmissions to the server. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/flexfilelayout')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 0fbf37de2a41..9f6fb8876b3f 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -533,14 +533,17 @@ nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror,
ktime_t now)
{
static const ktime_t notime = {0};
+ s64 report_interval = FF_LAYOUTSTATS_REPORT_INTERVAL;
nfs4_ff_start_busy_timer(&layoutstat->busy_timer, now);
if (ktime_equal(mirror->start_time, notime))
mirror->start_time = now;
if (ktime_equal(mirror->last_report_time, notime))
mirror->last_report_time = now;
+ if (layoutstats_timer != 0)
+ report_interval = (s64)layoutstats_timer * 1000LL;
if (ktime_to_ms(ktime_sub(now, mirror->last_report_time)) >=
- FF_LAYOUTSTATS_REPORT_INTERVAL) {
+ report_interval) {
mirror->last_report_time = now;
return true;
}