Diffusion FreeBSD src repository ca554a7dea3f

dev/mem: use sx instead of rw lock
ca554a7dea3f
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Description

dev/mem: use sx instead of rw lock

Some ops require sleepable context to success, like DMAP demotion.

Reviewed by: alc, markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D50970

Details

Provenance

kib	Authored on Jun 22 2025, 4:35 PM

Reviewer

alc

Differential Revision

D50970: amd64 pmap: eliminate two explicit panics on low mem conditions

Parents

rGc5f5d0cf49bf: if_bridge_test: add a test for QinQ (802.1ad)

Branches

Unknown

Tags

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Event Timeline

kib committed rGca554a7dea3f: dev/mem: use sx instead of rw lock (authored by kib).Jul 5 2025, 8:35 AM

kib added an edge: D50970: amd64 pmap: eliminate two explicit panics on low mem conditions.

kib mentioned this in rG4c82dff1082b: dev/mem: use sx instead of rw lock.Jul 12 2025, 1:44 AM

Changes (1)

Path

Size

sys/

dev/

mem/

memutil.c

rGca554a7dea3f

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