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Differential D23024

Fix a page leak in the md(4) swap I/O path.
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Authored by markj on Jan 3 2020, 5:41 PM.
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alc
kib
dougm
jeff
Commits
rS356326: Fix a page leak in the md(4) swap I/O path.
Summary

In a last-minute change to D22885 I removed the vm_page_activate() call.
But this is of course needed to ensure that the pages end up in the page
queues in the first place.

Restore the pre-r356157 logic. Now, without the page lock, the
vm_page_active() check is racy, but this race is harmless.

Reported and tested by: pho

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rS FreeBSD src repository - subversion
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head/
sys/
dev/
md/
11 lines

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head/sys/dev/md/md.c

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