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Small fix to prefetch ranges aggregation #16072

Merged
merged 1 commit into from
Apr 9, 2024
Merged

Small fix to prefetch ranges aggregation #16072

merged 1 commit into from
Apr 9, 2024

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amotin
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@amotin amotin commented Apr 9, 2024

When after #16022 adding new range we aggregate more than two existing ranges, that should be very rare, only if several streams overlap, we may need to zero not the last range, but some earlier.

I'm sorry, there is no such thing as enough self-review, even dozen's iteration can give something. ;)

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Performance enhancement (non-breaking change which improves efficiency)
  • Code cleanup (non-breaking change which makes code smaller or more readable)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
  • Documentation (a change to man pages or other documentation)

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@amotin
Small fix to prefetch ranges aggregation
21a1767 
When after openzfs#16022 adding new range we aggregate more than two
existing ranges, that should be very rare, only if several streams
overlap, we may need to zero not the last range, but some earlier.

Signed-off-by:	Alexander Motin <[email protected]>
Sponsored by:	iXsystems, Inc.
@amotin amotin requested a review from behlendorf April 9, 2024 15:46
@amotin amotin added the Status: Code Review Needed Ready for review and testing label Apr 9, 2024
behlendorf
behlendorf approved these changes Apr 9, 2024
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@behlendorf behlendorf left a comment

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Thanks for the quick fix. I missed this as well in my review.

@behlendorf behlendorf added Status: Accepted Ready to integrate (reviewed, tested) and removed Status: Code Review Needed Ready for review and testing labels Apr 9, 2024
@behlendorf behlendorf merged commit 9e63631 into openzfs:master Apr 9, 2024
22 of 25 checks passed
@amotin amotin deleted the zfetch_reorder_fix branch April 9, 2024 23:27
amotin added a commit to amotin/zfs that referenced this pull request Apr 17, 2024
@amotin
Small fix to prefetch ranges aggregation
599743d 
When after openzfs#16022 adding new range we aggregate more than two
existing ranges, that should be very rare, only if several streams
overlap, we may need to zero not the last range, but some earlier.

Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by:	Alexander Motin <[email protected]>
Sponsored by:	iXsystems, Inc.
Closes openzfs#16072
behlendorf pushed a commit that referenced this pull request Apr 19, 2024
@amotin @behlendorf
Small fix to prefetch ranges aggregation
f4ce02a 
When after #16022 adding new range we aggregate more than two
existing ranges, that should be very rare, only if several streams
overlap, we may need to zero not the last range, but some earlier.

Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by:	Alexander Motin <[email protected]>
Sponsored by:	iXsystems, Inc.
Closes #16072
lundman pushed a commit to openzfsonwindows/openzfs that referenced this pull request Sep 4, 2024
@amotin @lundman
Small fix to prefetch ranges aggregation
ad0b05a 
When after openzfs#16022 adding new range we aggregate more than two
existing ranges, that should be very rare, only if several streams
overlap, we may need to zero not the last range, but some earlier.

Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by:	Alexander Motin <[email protected]>
Sponsored by:	iXsystems, Inc.
Closes openzfs#16072
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