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| author | kib <kib@FreeBSD.org> | 2013-09-16 06:15:15 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-09-16 06:15:15 +0000 |
| commit | 9867f4e99b817ebbf5d787e92b2a8e2fe14808a1 (patch) | |
| tree | efaa1bbba8cd66f753b5c2a5db9a8c6fcb758d50 /sys/kern/subr_uio.c | |
| parent | 37ef3ce41e2351d0c7401ae7ff5da547c85c9dad (diff) | |
| download | FreeBSD-src-9867f4e99b817ebbf5d787e92b2a8e2fe14808a1.zip FreeBSD-src-9867f4e99b817ebbf5d787e92b2a8e2fe14808a1.tar.gz | |
In pmap_copy(), when the copied region is mapped with superpage but does
not cover entire superpage, avoid copying. Doing partial copy would
require demotion, which is incompatible with the already held locks.
Reported by: cperciva
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Approved by: re (delphij)
Diffstat (limited to 'sys/kern/subr_uio.c')
0 files changed, 0 insertions, 0 deletions
