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authorBrian Behlendorf <behlendorf1@llnl.gov>2021-08-05 14:35:34 -0700
committerTony Hutter <hutter2@llnl.gov>2021-09-14 14:30:13 -0700
commit32a971e7499a5a83ce9921a0f36a3d127b1b57e4 (patch)
treecdaba34e4a1d79141726a942e0780d310aa54b2b
parentc07ed695778b8593fbda88a0343fe831465ab91e (diff)
Enable /proc/diskstats for zvols
The /proc/diskstats accounting needs to be explicitly enabled for block devices which do not use multi-queue. Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #12440 Closes #12066
-rw-r--r--module/os/linux/zfs/zvol_os.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/module/os/linux/zfs/zvol_os.c b/module/os/linux/zfs/zvol_os.c
index 8b29d73a3..c17423426 100644
--- a/module/os/linux/zfs/zvol_os.c
+++ b/module/os/linux/zfs/zvol_os.c
@@ -837,6 +837,9 @@ zvol_alloc(dev_t dev, const char *name)
/* Disable write merging in favor of the ZIO pipeline. */
blk_queue_flag_set(QUEUE_FLAG_NOMERGES, zso->zvo_queue);
+ /* Enable /proc/diskstats */
+ blk_queue_flag_set(QUEUE_FLAG_IO_STAT, zso->zvo_queue);
+
zso->zvo_queue->queuedata = zv;
zso->zvo_dev = dev;
zv->zv_open_count = 0;