| Message ID | 20210512093443.35128-3-xiubli@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | ceph: send io size metrics to mds daemon | expand |
On 5/12/21 7:18 PM, Jeff Layton wrote: > On Wed, 2021-05-12 at 17:34 +0800, xiubli@redhat.com wrote: >> From: Xiubo Li <xiubli@redhat.com> >> >> Signed-off-by: Xiubo Li <xiubli@redhat.com> >> --- >> fs/ceph/metric.c | 80 ++++++++++++++++++++++++------------------------ >> fs/ceph/metric.h | 73 +++++++++---------------------------------- >> 2 files changed, 55 insertions(+), 98 deletions(-) >> >> diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c >> index d6c76f1667ed..ba8d86ae9fcf 100644 >> --- a/fs/ceph/metric.c >> +++ b/fs/ceph/metric.c >> @@ -46,10 +46,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, >> >> /* encode the cap metric */ >> cap = (struct ceph_metric_cap *)(head + 1); >> - cap->type = cpu_to_le32(CLIENT_METRIC_TYPE_CAP_INFO); >> - cap->ver = 1; >> - cap->compat = 1; >> - cap->data_len = cpu_to_le32(sizeof(*cap) - 10); >> + cap->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_CAP_INFO); >> + cap->header.ver = 1; >> + cap->header.compat = 1; >> + cap->header.data_len = cpu_to_le32(sizeof(*cap) - 10); > This would be a bit clearer: > > cap->header.data_len = cpu_to_le32(sizeof(*cap) - sizeof(struct ceph_metric_header)); > > At the very least, the "10" should be a named constant of some sort. > Yeah, this looks better. >> cap->hit = cpu_to_le64(percpu_counter_sum(&m->i_caps_hit)); >> cap->mis = cpu_to_le64(percpu_counter_sum(&m->i_caps_mis)); >> cap->total = cpu_to_le64(nr_caps); >> @@ -57,10 +57,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, >> >> /* encode the read latency metric */ >> read = (struct ceph_metric_read_latency *)(cap + 1); >> - read->type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_LATENCY); >> - read->ver = 1; >> - read->compat = 1; >> - read->data_len = cpu_to_le32(sizeof(*read) - 10); >> + read->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_LATENCY); >> + read->header.ver = 1; >> + read->header.compat = 1; >> + read->header.data_len = cpu_to_le32(sizeof(*read) - 10); >> sum = m->read_latency_sum; >> jiffies_to_timespec64(sum, &ts); >> read->sec = cpu_to_le32(ts.tv_sec); >> @@ -69,10 +69,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, >> >> /* encode the write latency metric */ >> write = (struct ceph_metric_write_latency *)(read + 1); >> - write->type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_LATENCY); >> - write->ver = 1; >> - write->compat = 1; >> - write->data_len = cpu_to_le32(sizeof(*write) - 10); >> + write->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_LATENCY); >> + write->header.ver = 1; >> + write->header.compat = 1; >> + write->header.data_len = cpu_to_le32(sizeof(*write) - 10); >> sum = m->write_latency_sum; >> jiffies_to_timespec64(sum, &ts); >> write->sec = cpu_to_le32(ts.tv_sec); >> @@ -81,10 +81,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, >> >> /* encode the metadata latency metric */ >> meta = (struct ceph_metric_metadata_latency *)(write + 1); >> - meta->type = cpu_to_le32(CLIENT_METRIC_TYPE_METADATA_LATENCY); >> - meta->ver = 1; >> - meta->compat = 1; >> - meta->data_len = cpu_to_le32(sizeof(*meta) - 10); >> + meta->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_METADATA_LATENCY); >> + meta->header.ver = 1; >> + meta->header.compat = 1; >> + meta->header.data_len = cpu_to_le32(sizeof(*meta) - 10); >> sum = m->metadata_latency_sum; >> jiffies_to_timespec64(sum, &ts); >> meta->sec = cpu_to_le32(ts.tv_sec); >> @@ -93,10 +93,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, >> >> /* encode the dentry lease metric */ >> dlease = (struct ceph_metric_dlease *)(meta + 1); >> - dlease->type = cpu_to_le32(CLIENT_METRIC_TYPE_DENTRY_LEASE); >> - dlease->ver = 1; >> - dlease->compat = 1; >> - dlease->data_len = cpu_to_le32(sizeof(*dlease) - 10); >> + dlease->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_DENTRY_LEASE); >> + dlease->header.ver = 1; >> + dlease->header.compat = 1; >> + dlease->header.data_len = cpu_to_le32(sizeof(*dlease) - 10); >> dlease->hit = cpu_to_le64(percpu_counter_sum(&m->d_lease_hit)); >> dlease->mis = cpu_to_le64(percpu_counter_sum(&m->d_lease_mis)); >> dlease->total = cpu_to_le64(atomic64_read(&m->total_dentries)); >> @@ -106,50 +106,50 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, >> >> /* encode the opened files metric */ >> files = (struct ceph_opened_files *)(dlease + 1); >> - files->type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_FILES); >> - files->ver = 1; >> - files->compat = 1; >> - files->data_len = cpu_to_le32(sizeof(*files) - 10); >> + files->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_FILES); >> + files->header.ver = 1; >> + files->header.compat = 1; >> + files->header.data_len = cpu_to_le32(sizeof(*files) - 10); >> files->opened_files = cpu_to_le64(atomic64_read(&m->opened_files)); >> files->total = cpu_to_le64(sum); >> items++; >> >> /* encode the pinned icaps metric */ >> icaps = (struct ceph_pinned_icaps *)(files + 1); >> - icaps->type = cpu_to_le32(CLIENT_METRIC_TYPE_PINNED_ICAPS); >> - icaps->ver = 1; >> - icaps->compat = 1; >> - icaps->data_len = cpu_to_le32(sizeof(*icaps) - 10); >> + icaps->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_PINNED_ICAPS); >> + icaps->header.ver = 1; >> + icaps->header.compat = 1; >> + icaps->header.data_len = cpu_to_le32(sizeof(*icaps) - 10); >> icaps->pinned_icaps = cpu_to_le64(nr_caps); >> icaps->total = cpu_to_le64(sum); >> items++; >> >> /* encode the opened inodes metric */ >> inodes = (struct ceph_opened_inodes *)(icaps + 1); >> - inodes->type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_INODES); >> - inodes->ver = 1; >> - inodes->compat = 1; >> - inodes->data_len = cpu_to_le32(sizeof(*inodes) - 10); >> + inodes->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_INODES); >> + inodes->header.ver = 1; >> + inodes->header.compat = 1; >> + inodes->header.data_len = cpu_to_le32(sizeof(*inodes) - 10); >> inodes->opened_inodes = cpu_to_le64(percpu_counter_sum(&m->opened_inodes)); >> inodes->total = cpu_to_le64(sum); >> items++; >> >> /* encode the read io size metric */ >> rsize = (struct ceph_read_io_size *)(inodes + 1); >> - rsize->type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_IO_SIZES); >> - rsize->ver = 1; >> - rsize->compat = 1; >> - rsize->data_len = cpu_to_le32(sizeof(*rsize) - 10); >> + rsize->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_IO_SIZES); >> + rsize->header.ver = 1; >> + rsize->header.compat = 1; >> + rsize->header.data_len = cpu_to_le32(sizeof(*rsize) - 10); >> rsize->total_ops = cpu_to_le64(m->total_reads); >> rsize->total_size = cpu_to_le64(m->read_size_sum); >> items++; >> > It might be good to reorder these patches to do this struct cleanup > first, so that you don't end up patching code you just added. > Sure, will fix it. Thanks >> /* encode the write io size metric */ >> wsize = (struct ceph_write_io_size *)(rsize + 1); >> - wsize->type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_IO_SIZES); >> - wsize->ver = 1; >> - wsize->compat = 1; >> - wsize->data_len = cpu_to_le32(sizeof(*wsize) - 10); >> + wsize->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_IO_SIZES); >> + wsize->header.ver = 1; >> + wsize->header.compat = 1; >> + wsize->header.data_len = cpu_to_le32(sizeof(*wsize) - 10); >> wsize->total_ops = cpu_to_le64(m->total_writes); >> wsize->total_size = cpu_to_le64(m->write_size_sum); >> items++; >> diff --git a/fs/ceph/metric.h b/fs/ceph/metric.h >> index 44b0f478b84b..0133955a3c6a 100644 >> --- a/fs/ceph/metric.h >> +++ b/fs/ceph/metric.h >> @@ -42,14 +42,16 @@ enum ceph_metric_type { >> CLIENT_METRIC_TYPE_MAX, \ >> } >> >> -/* metric caps header */ >> -struct ceph_metric_cap { >> +struct ceph_metric_header { >> __le32 type; /* ceph metric type */ >> - >> __u8 ver; >> __u8 compat; >> - >> __le32 data_len; /* length of sizeof(hit + mis + total) */ >> +} __packed; >> + >> +/* metric caps header */ >> +struct ceph_metric_cap { >> + struct ceph_metric_header header; >> __le64 hit; >> __le64 mis; >> __le64 total; >> @@ -57,48 +59,28 @@ struct ceph_metric_cap { >> >> /* metric read latency header */ >> struct ceph_metric_read_latency { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(sec + nsec) */ >> + struct ceph_metric_header header; >> __le32 sec; >> __le32 nsec; >> } __packed; >> >> /* metric write latency header */ >> struct ceph_metric_write_latency { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(sec + nsec) */ >> + struct ceph_metric_header header; >> __le32 sec; >> __le32 nsec; >> } __packed; >> >> /* metric metadata latency header */ >> struct ceph_metric_metadata_latency { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(sec + nsec) */ >> + struct ceph_metric_header header; >> __le32 sec; >> __le32 nsec; >> } __packed; >> >> /* metric dentry lease header */ >> struct ceph_metric_dlease { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(hit + mis + total) */ >> + struct ceph_metric_header header; >> __le64 hit; >> __le64 mis; >> __le64 total; >> @@ -106,60 +88,35 @@ struct ceph_metric_dlease { >> >> /* metric opened files header */ >> struct ceph_opened_files { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(opened_files + total) */ >> + struct ceph_metric_header header; >> __le64 opened_files; >> __le64 total; >> } __packed; >> >> /* metric pinned i_caps header */ >> struct ceph_pinned_icaps { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(pinned_icaps + total) */ >> + struct ceph_metric_header header; >> __le64 pinned_icaps; >> __le64 total; >> } __packed; >> >> /* metric opened inodes header */ >> struct ceph_opened_inodes { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(opened_inodes + total) */ >> + struct ceph_metric_header header; >> __le64 opened_inodes; >> __le64 total; >> } __packed; >> >> /* metric read io size header */ >> struct ceph_read_io_size { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(opened_inodes + total) */ >> + struct ceph_metric_header header; >> __le64 total_ops; >> __le64 total_size; >> } __packed; >> >> /* metric write io size header */ >> struct ceph_write_io_size { >> - __le32 type; /* ceph metric type */ >> - >> - __u8 ver; >> - __u8 compat; >> - >> - __le32 data_len; /* length of sizeof(opened_inodes + total) */ >> + struct ceph_metric_header header; >> __le64 total_ops; >> __le64 total_size; >> } __packed;
diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c index d6c76f1667ed..ba8d86ae9fcf 100644 --- a/fs/ceph/metric.c +++ b/fs/ceph/metric.c @@ -46,10 +46,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, /* encode the cap metric */ cap = (struct ceph_metric_cap *)(head + 1); - cap->type = cpu_to_le32(CLIENT_METRIC_TYPE_CAP_INFO); - cap->ver = 1; - cap->compat = 1; - cap->data_len = cpu_to_le32(sizeof(*cap) - 10); + cap->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_CAP_INFO); + cap->header.ver = 1; + cap->header.compat = 1; + cap->header.data_len = cpu_to_le32(sizeof(*cap) - 10); cap->hit = cpu_to_le64(percpu_counter_sum(&m->i_caps_hit)); cap->mis = cpu_to_le64(percpu_counter_sum(&m->i_caps_mis)); cap->total = cpu_to_le64(nr_caps); @@ -57,10 +57,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, /* encode the read latency metric */ read = (struct ceph_metric_read_latency *)(cap + 1); - read->type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_LATENCY); - read->ver = 1; - read->compat = 1; - read->data_len = cpu_to_le32(sizeof(*read) - 10); + read->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_LATENCY); + read->header.ver = 1; + read->header.compat = 1; + read->header.data_len = cpu_to_le32(sizeof(*read) - 10); sum = m->read_latency_sum; jiffies_to_timespec64(sum, &ts); read->sec = cpu_to_le32(ts.tv_sec); @@ -69,10 +69,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, /* encode the write latency metric */ write = (struct ceph_metric_write_latency *)(read + 1); - write->type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_LATENCY); - write->ver = 1; - write->compat = 1; - write->data_len = cpu_to_le32(sizeof(*write) - 10); + write->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_LATENCY); + write->header.ver = 1; + write->header.compat = 1; + write->header.data_len = cpu_to_le32(sizeof(*write) - 10); sum = m->write_latency_sum; jiffies_to_timespec64(sum, &ts); write->sec = cpu_to_le32(ts.tv_sec); @@ -81,10 +81,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, /* encode the metadata latency metric */ meta = (struct ceph_metric_metadata_latency *)(write + 1); - meta->type = cpu_to_le32(CLIENT_METRIC_TYPE_METADATA_LATENCY); - meta->ver = 1; - meta->compat = 1; - meta->data_len = cpu_to_le32(sizeof(*meta) - 10); + meta->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_METADATA_LATENCY); + meta->header.ver = 1; + meta->header.compat = 1; + meta->header.data_len = cpu_to_le32(sizeof(*meta) - 10); sum = m->metadata_latency_sum; jiffies_to_timespec64(sum, &ts); meta->sec = cpu_to_le32(ts.tv_sec); @@ -93,10 +93,10 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, /* encode the dentry lease metric */ dlease = (struct ceph_metric_dlease *)(meta + 1); - dlease->type = cpu_to_le32(CLIENT_METRIC_TYPE_DENTRY_LEASE); - dlease->ver = 1; - dlease->compat = 1; - dlease->data_len = cpu_to_le32(sizeof(*dlease) - 10); + dlease->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_DENTRY_LEASE); + dlease->header.ver = 1; + dlease->header.compat = 1; + dlease->header.data_len = cpu_to_le32(sizeof(*dlease) - 10); dlease->hit = cpu_to_le64(percpu_counter_sum(&m->d_lease_hit)); dlease->mis = cpu_to_le64(percpu_counter_sum(&m->d_lease_mis)); dlease->total = cpu_to_le64(atomic64_read(&m->total_dentries)); @@ -106,50 +106,50 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc, /* encode the opened files metric */ files = (struct ceph_opened_files *)(dlease + 1); - files->type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_FILES); - files->ver = 1; - files->compat = 1; - files->data_len = cpu_to_le32(sizeof(*files) - 10); + files->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_FILES); + files->header.ver = 1; + files->header.compat = 1; + files->header.data_len = cpu_to_le32(sizeof(*files) - 10); files->opened_files = cpu_to_le64(atomic64_read(&m->opened_files)); files->total = cpu_to_le64(sum); items++; /* encode the pinned icaps metric */ icaps = (struct ceph_pinned_icaps *)(files + 1); - icaps->type = cpu_to_le32(CLIENT_METRIC_TYPE_PINNED_ICAPS); - icaps->ver = 1; - icaps->compat = 1; - icaps->data_len = cpu_to_le32(sizeof(*icaps) - 10); + icaps->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_PINNED_ICAPS); + icaps->header.ver = 1; + icaps->header.compat = 1; + icaps->header.data_len = cpu_to_le32(sizeof(*icaps) - 10); icaps->pinned_icaps = cpu_to_le64(nr_caps); icaps->total = cpu_to_le64(sum); items++; /* encode the opened inodes metric */ inodes = (struct ceph_opened_inodes *)(icaps + 1); - inodes->type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_INODES); - inodes->ver = 1; - inodes->compat = 1; - inodes->data_len = cpu_to_le32(sizeof(*inodes) - 10); + inodes->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_OPENED_INODES); + inodes->header.ver = 1; + inodes->header.compat = 1; + inodes->header.data_len = cpu_to_le32(sizeof(*inodes) - 10); inodes->opened_inodes = cpu_to_le64(percpu_counter_sum(&m->opened_inodes)); inodes->total = cpu_to_le64(sum); items++; /* encode the read io size metric */ rsize = (struct ceph_read_io_size *)(inodes + 1); - rsize->type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_IO_SIZES); - rsize->ver = 1; - rsize->compat = 1; - rsize->data_len = cpu_to_le32(sizeof(*rsize) - 10); + rsize->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_IO_SIZES); + rsize->header.ver = 1; + rsize->header.compat = 1; + rsize->header.data_len = cpu_to_le32(sizeof(*rsize) - 10); rsize->total_ops = cpu_to_le64(m->total_reads); rsize->total_size = cpu_to_le64(m->read_size_sum); items++; /* encode the write io size metric */ wsize = (struct ceph_write_io_size *)(rsize + 1); - wsize->type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_IO_SIZES); - wsize->ver = 1; - wsize->compat = 1; - wsize->data_len = cpu_to_le32(sizeof(*wsize) - 10); + wsize->header.type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_IO_SIZES); + wsize->header.ver = 1; + wsize->header.compat = 1; + wsize->header.data_len = cpu_to_le32(sizeof(*wsize) - 10); wsize->total_ops = cpu_to_le64(m->total_writes); wsize->total_size = cpu_to_le64(m->write_size_sum); items++; diff --git a/fs/ceph/metric.h b/fs/ceph/metric.h index 44b0f478b84b..0133955a3c6a 100644 --- a/fs/ceph/metric.h +++ b/fs/ceph/metric.h @@ -42,14 +42,16 @@ enum ceph_metric_type { CLIENT_METRIC_TYPE_MAX, \ } -/* metric caps header */ -struct ceph_metric_cap { +struct ceph_metric_header { __le32 type; /* ceph metric type */ - __u8 ver; __u8 compat; - __le32 data_len; /* length of sizeof(hit + mis + total) */ +} __packed; + +/* metric caps header */ +struct ceph_metric_cap { + struct ceph_metric_header header; __le64 hit; __le64 mis; __le64 total; @@ -57,48 +59,28 @@ struct ceph_metric_cap { /* metric read latency header */ struct ceph_metric_read_latency { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(sec + nsec) */ + struct ceph_metric_header header; __le32 sec; __le32 nsec; } __packed; /* metric write latency header */ struct ceph_metric_write_latency { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(sec + nsec) */ + struct ceph_metric_header header; __le32 sec; __le32 nsec; } __packed; /* metric metadata latency header */ struct ceph_metric_metadata_latency { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(sec + nsec) */ + struct ceph_metric_header header; __le32 sec; __le32 nsec; } __packed; /* metric dentry lease header */ struct ceph_metric_dlease { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(hit + mis + total) */ + struct ceph_metric_header header; __le64 hit; __le64 mis; __le64 total; @@ -106,60 +88,35 @@ struct ceph_metric_dlease { /* metric opened files header */ struct ceph_opened_files { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(opened_files + total) */ + struct ceph_metric_header header; __le64 opened_files; __le64 total; } __packed; /* metric pinned i_caps header */ struct ceph_pinned_icaps { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(pinned_icaps + total) */ + struct ceph_metric_header header; __le64 pinned_icaps; __le64 total; } __packed; /* metric opened inodes header */ struct ceph_opened_inodes { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(opened_inodes + total) */ + struct ceph_metric_header header; __le64 opened_inodes; __le64 total; } __packed; /* metric read io size header */ struct ceph_read_io_size { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(opened_inodes + total) */ + struct ceph_metric_header header; __le64 total_ops; __le64 total_size; } __packed; /* metric write io size header */ struct ceph_write_io_size { - __le32 type; /* ceph metric type */ - - __u8 ver; - __u8 compat; - - __le32 data_len; /* length of sizeof(opened_inodes + total) */ + struct ceph_metric_header header; __le64 total_ops; __le64 total_size; } __packed;