csjp 2008-07-05 20:11:28 UTC
FreeBSD src repository
Modified files:
sys/net bpf.c bpf_zerocopy.c bpf_zerocopy.h
Log:
SVN rev 180310 on 2008-07-05 20:11:28Z by csjp
Make sure we are clearing the ZBUF_FLAG_IMMUTABLE any time a free buffer
is reclaimed by the kernel. This fixes a bug resulted in the kernel
over writing packet data while user-space was still processing it when
zerocopy is enabled. (Or a panic if invariants was enabled).
Discussed with: rwatson
Revision Changes Path
1.196 +25 -0 src/sys/net/bpf.c
1.5 +18 -0 src/sys/net/bpf_zerocopy.c
1.3 +1 -0 src/sys/net/bpf_zerocopy.h
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