Relax the locking requirements for vm_object_page_noreuse()
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Authored by alc on Mar 15 2017, 12:18 PM.

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kib
markj

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rS315318: Relax the locking requirements for vm_object_page_noreuse(). While

Summary

While reviewing all uses of OFF_TO_IDX(), I observed that vm_object_page_noreuse() is requiring an exclusive lock on the object when, in fact, a shared lock suffices.

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rS FreeBSD src repository - subversion

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Event Timeline

alc created this revision.Mar 15 2017, 12:18 PM

kib accepted this revision.Mar 15 2017, 12:31 PM

This revision is now accepted and ready to land.Mar 15 2017, 12:31 PM

markj accepted this revision.Mar 15 2017, 5:12 PM

Closed by commit rS315318: Relax the locking requirements for vm_object_page_noreuse(). While (authored by alc). · Explain WhyMar 15 2017, 5:44 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

head/

sys/

kern/

vfs_default.c

4 lines

vm/

vm_object.c

2 lines

Diff 26282

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head/sys/kern/vfs_default.c