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Differential D23036

2/7 vfs: reimplement deferred inactive
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Authored by mjg on Jan 5 2020, 3:45 AM.
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kib
jeff
mckusick
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rS356441: vfs: reimplement deferred inactive to use a dedicated flag (VI_DEFINACT)
Summary

Previous behavior of leaving VI_OWEINACT vnodes on the active list without a hold count is eliminated. Instead, hold count is kept and inactive processing gets explicitly deferred by setting the VI_DEFINACT flag. The syncer is then responsible for vdrop.

This is taken out of D22995

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rS FreeBSD src repository - subversion
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Event Timeline

mjg created this revision.Jan 5 2020, 3:45 AM
Herald added a subscriber: imp. · View Herald TranscriptJan 5 2020, 3:45 AM
Harbormaster completed remote builds in B28487: Diff 66363.Jan 5 2020, 3:45 AM
mjg mentioned this in D22995: 4/7 vfs: add per-mount vnode lazy list and use it for deferred inactive + msync.Jan 5 2020, 4:02 AM
mjg added a parent revision: D23035: 1/7 vfs: trylock in vfs_msync and refactor the func.Jan 5 2020, 4:04 AM
mjg retitled this revision from vfs: reimplement deferred inactive to 2/7 vfs: reimplement deferred inactive.
kib accepted this revision.Jan 7 2020, 1:24 PM
kib added inline comments.
sys/kern/vfs_subr.c
2987 ↗(On Diff #66363)

Do you need to assert that this is not the last vdrop ?

This revision is now accepted and ready to land.Jan 7 2020, 1:24 PM
mjg added inline comments.Jan 7 2020, 2:16 PM
sys/kern/vfs_subr.c
2987 ↗(On Diff #66363)

ok

Closed by commit rS356441: vfs: reimplement deferred inactive to use a dedicated flag (VI_DEFINACT) (authored by mjg). · Explain WhyJan 7 2020, 3:56 PM
This revision was automatically updated to reflect the committed changes.
mjg added a commit: rS356441: vfs: reimplement deferred inactive to use a dedicated flag (VI_DEFINACT).

Revision Contents
Changeset List

PathSize
head/
sys/
compat/
linux/
2 lines
geom/
journal/
2 lines
kern/
2 lines
199 lines
2 lines
sys/
4 lines
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Diff 66438

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head/sys/compat/linux/linux_stats.c

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head/sys/geom/journal/g_journal.c

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head/sys/kern/vfs_mount.c

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head/sys/kern/vfs_subr.c

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head/sys/kern/vfs_syscalls.c

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head/sys/sys/mount.h

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head/sys/sys/vnode.h

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