diff options
| author | Peng Tao <tao.peng@primarydata.com> | 2015-06-23 19:52:00 +0800 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-24 10:53:10 -0400 |
| commit | d983803d3818a7aef3200147c72a45f573d84537 (patch) | |
| tree | c16ffa854654b17a7b6a19f618536e6c1a9f087c /fs/nfs/flexfilelayout/flexfilelayout.c | |
| parent | abcb7bfc9fdecd1550b98a5e13d40bfba6c0649b (diff) | |
pNFS/flexfiles: track when layout is first used
So that we can report cumulative time since the beginning
of statistics collection of the layout.
Reviewed-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/flexfilelayout/flexfilelayout.c')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index 8ac31fbf040a..4215278c9c76 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -451,9 +451,13 @@ nfs4_ff_layout_calc_completion_time(struct rpc_task *task) } static void -nfs4_ff_layoutstat_start_io(struct nfs4_ff_layoutstat *layoutstat) +nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror, + struct nfs4_ff_layoutstat *layoutstat) { + static const ktime_t notime = {0}; + nfs4_ff_start_busy_timer(&layoutstat->busy_timer); + cmpxchg(&mirror->start_time, notime, ktime_get()); } static void @@ -491,7 +495,7 @@ nfs4_ff_layout_stat_io_start_read(struct nfs4_ff_layout_mirror *mirror, __u64 requested) { spin_lock(&mirror->lock); - nfs4_ff_layoutstat_start_io(&mirror->read_stat); + nfs4_ff_layoutstat_start_io(mirror, &mirror->read_stat); nfs4_ff_layout_stat_io_update_requested(&mirror->read_stat, requested); spin_unlock(&mirror->lock); } @@ -514,7 +518,7 @@ nfs4_ff_layout_stat_io_start_write(struct nfs4_ff_layout_mirror *mirror, __u64 requested) { spin_lock(&mirror->lock); - nfs4_ff_layoutstat_start_io(&mirror->write_stat); + nfs4_ff_layoutstat_start_io(mirror, &mirror->write_stat); nfs4_ff_layout_stat_io_update_requested(&mirror->write_stat, requested); spin_unlock(&mirror->lock); } |