Diffusion FreeBSD src repository e93404065177

cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once
e93404065177
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Description

cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once

per allocated vm_object. Otherwise, since constructors are not
idempotent, we e.g. leak device reference in case of non-managed pager.

PR: 278826
Reported by: Austin Zhang <austin.zhang@dell.com>
Reviewed by: alc, markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D45113

Details

Provenance

kib	Authored on May 7 2024, 1:23 PM

Reviewer

alc

Differential Revision

D45113: cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once

Parents

rG02f481a30b82: linprocfs: Fix i386 time type

Branches

Unknown

Tags

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Event Timeline

kib committed rGe93404065177: cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once (authored by kib).May 12 2024, 1:13 AM

kib added an edge: D45113: cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once.May 12 2024, 1:15 AM

kib mentioned this in rG4018bcdea8e1: cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once.May 19 2024, 12:58 AM

kib mentioned this in rG2eeb0e9fc130: cdev_pager_allocate(): ensure that the cdev_pager_ops ctr is called only once.

Changes (1)

Path

Size

sys/

vm/

device_pager.c

rGe93404065177

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