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Additional limits on hole reporting #14641

Merged
merged 1 commit into from
Mar 28, 2023
Merged

Additional limits on hole reporting #14641

merged 1 commit into from
Mar 28, 2023

Commits on Mar 27, 2023

  1. Additional limits on hole reporting 

    Holding the zp->z_rangelock as a RL_READER over the range
0-UINT64_MAX is sufficient to prevent the dnode from being
re-dirtied by concurrent writers.  To avoid potentially
looping multiple times for external caller which do not
take the rangelock holes are not reported after the first
sync.  While not optimal this is always functionally correct.

This change adds the missing rangelock calls on FreeBSD to
zvol_cdev_ioctl().

Signed-off-by: Brian Behlendorf <[email protected]>
Issue openzfs#14512
    @behlendorf
    behlendorf committed Mar 27, 2023
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