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author | jake <jake@FreeBSD.org> | 2001-01-21 03:11:03 +0000 |
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committer | jake <jake@FreeBSD.org> | 2001-01-21 03:11:03 +0000 |
commit | b2dd5fbcb8d56cb23016af72b6ef58261c9d4a6f (patch) | |
tree | 1d376d5eb37e7bef09e192112e2dacd5ff04954b /sys/dev | |
parent | 440ea309e2ffb6880ac9fc1c3c257c7dd5d9cb41 (diff) | |
download | FreeBSD-src-b2dd5fbcb8d56cb23016af72b6ef58261c9d4a6f.zip FreeBSD-src-b2dd5fbcb8d56cb23016af72b6ef58261c9d4a6f.tar.gz |
Implement optimized PCPU accessors. These are necessary to support a
pre-emptable kernel. For variables of size 4 bytes or less they compile
to a single instruction, which does not allow a process to migrate cpus
in the middle, and get the value for the "wrong" cpu.
Diffstat (limited to 'sys/dev')
0 files changed, 0 insertions, 0 deletions