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Enable /proc/diskstats for zvols #12440

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Aug 5, 2021
Merged

Enable /proc/diskstats for zvols #12440

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3 changes: 3 additions & 0 deletions module/os/linux/zfs/zvol_os.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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;
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