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Differential D44178

kern/nullfs: Implement the recycling on the nullfs nodes. (stable/13)
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Authored by seigo.tanimura_gmail.com on Mar 1 2024, 5:43 PM.
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Summary

This fix improves the ZFS vnode pruning and ARC eviction by recycling the
nullfs vnodes.

  • Key Features
  • The recycle of the nullfs vnodes, triggered by a vm_lowmem kernel event.
  • Acceleration of the nullfs vnode recycle by VM_LOW_KMEM.

PR: 275594
Reported By: Thomas Mueller <thmu7@freenet.de>
Security: FreeBSD-EN-23:18.openzfs
Signed-off-by: Seigo Tanimura <seigo.tanimura@gmail.com>

Diff Detail

Repository
rG FreeBSD src repository
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Unit
Tests Skipped
Build Status
Buildable 56378
Build 53266: arc lint + arc unit

Event Timeline

seigo.tanimura_gmail.com created this revision.Mar 1 2024, 5:43 PM
Herald added a subscriber: imp. · View Herald TranscriptMar 1 2024, 5:43 PM
seigo.tanimura_gmail.com requested review of this revision.Mar 1 2024, 5:43 PM
Harbormaster completed remote builds in B56378: Diff 135280.Mar 1 2024, 5:43 PM
seigo.tanimura_gmail.com added a comment.Mar 1 2024, 5:44 PM

Target branches: stable/13, releng/13.3, releng/13.2
Backport of: https://reviews.freebsd.org/D44177

seigo.tanimura_gmail.com added a parent revision: D44175: kern/openzfs: Regulate the ZFS ARC pruning process precisely. (stable/13).Mar 1 2024, 5:44 PM
seigo.tanimura_gmail.com retitled this revision from kern/nullfs: Implement the recycling on the nullfs nodes. to kern/nullfs: Implement the recycling on the nullfs nodes. (stable/13).Mar 1 2024, 6:04 PM
seigo.tanimura_gmail.com added a parent revision: D44176: kern/openzfs: Regulate the ZFS ARC pruning process precisely. (releng/13.2).Mar 1 2024, 6:49 PM
seigo.tanimura_gmail.com mentioned this in D44218: kern/nullfs: Add the sysctl to control the vnode caching upon mounting nullfs. (stable/13).Mar 5 2024, 6:33 AM
seigo.tanimura_gmail.com mentioned this in D44217: kern/nullfs: Add the sysctl to control the vnode caching upon mounting nullfs..Mar 5 2024, 6:43 AM
seigo.tanimura_gmail.com abandoned this revision.Mar 5 2024, 10:47 AM

Superseded by https://reviews.freebsd.org/D44218.

Revision Contents
Changeset List

PathSize
sys/
fs/
nullfs/
31 lines
134 lines
115 lines

Diff 135280

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sys/fs/nullfs/null.h

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sys/fs/nullfs/null_subr.c

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sys/fs/nullfs/null_vfsops.c

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