Diffusion FreeBSD src repository c02780b78c7f

Add GB_NOWITNESS flag
c02780b78c7f
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Description

Add GB_NOWITNESS flag

It prevents WITNESS from recording the lock order for the buffer lock
acquired by getblkx().

Reviewed by: mckusick
Discussed with: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D34073

Details

Provenance

kib	Authored on Jan 28 2022, 4:37 AM

Reviewer

mckusick

Differential Revision

D34073: ffs: lock buffers after snaplk with LK_NOWITNESS

Parents

rGe11b2b69c5a1: ffs_alloc.c: order includes alphabetically

Branches

Unknown

Tags

Unknown

Event Timeline

kib committed rGc02780b78c7f: Add GB_NOWITNESS flag (authored by kib).Feb 1 2022, 4:54 AM

kib added an edge: D34073: ffs: lock buffers after snaplk with LK_NOWITNESS.

kib mentioned this in rG15def34bd8c3: Add GB_NOWITNESS flag.Feb 7 2022, 9:51 AM

Changes (2)

Path

Size

sys/

kern/

vfs_bio.c

sys/

buf.h

rGc02780b78c7f

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sys/kern/vfs_bio.c