diff options
| author | Bob Liu <bob.liu@oracle.com> | 2015-12-09 07:44:02 +0800 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2016-01-04 12:21:25 -0500 |
| commit | db6fbc106786f26d95889c50c18b1f28aa543a17 (patch) | |
| tree | 21d9bed91528e2477d4a318556de7afb326dbb6f /drivers/block/xen-blkback/common.h | |
| parent | 6cc5683390472c450fd69975d1283db79202667f (diff) | |
| download | linux-db6fbc106786f26d95889c50c18b1f28aa543a17.tar.bz2 | |
xen/blkback: make st_ statistics per ring
Make st_* statistics per ring and the VBD sysfs would iterate over all the
rings.
Note: xenvbd_sysfs_delif() is called in xen_blkbk_remove() before all rings
are torn down, so it's safe.
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
v2: Aligned the variables on the same column.
Diffstat (limited to 'drivers/block/xen-blkback/common.h')
| -rw-r--r-- | drivers/block/xen-blkback/common.h | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 3c244ecf22a4..b27c5ba15600 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -298,6 +298,16 @@ struct xen_blkif_ring { atomic_t persistent_gnt_in_use; unsigned long next_lru; + /* Statistics. */ + unsigned long st_print; + unsigned long long st_rd_req; + unsigned long long st_wr_req; + unsigned long long st_oo_req; + unsigned long long st_f_req; + unsigned long long st_ds_req; + unsigned long long st_rd_sect; + unsigned long long st_wr_sect; + /* Used by the kworker that offload work from the persistent purge. */ struct list_head persistent_purge_list; struct work_struct persistent_purge_work; @@ -328,16 +338,6 @@ struct xen_blkif { struct completion drain_complete; atomic_t drain; - /* statistics */ - unsigned long st_print; - unsigned long long st_rd_req; - unsigned long long st_wr_req; - unsigned long long st_oo_req; - unsigned long long st_f_req; - unsigned long long st_ds_req; - unsigned long long st_rd_sect; - unsigned long long st_wr_sect; - struct work_struct free_work; unsigned int nr_ring_pages; /* All rings for this device. */ |