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authorJustus Winter <4winter@informatik.uni-hamburg.de>2014-12-19 01:51:58 +0100
committerJustus Winter <4winter@informatik.uni-hamburg.de>2015-02-20 19:14:22 +0100
commitd3f20b06cee70fd5afe8aaff31614756a57e6bb6 (patch)
treec48f6c2aefd471dfad91c22396be360bffb604b7 /kern/lock.c
parent5bf4c1cb311ade33ea2c4b3706f7c6a42917b008 (diff)
i386: specialize `copyinmsg' and `copyoutmsg'
Previously, `copyinmsg' was the same function as `copyin'. The former is for messages, and the size of messages is a multiple of four. Likewise for `copyoutmsg'. Provide a specialized version of both functions. This shaves off a couple of instructions and improves our IPC performance. * i386/i386/locore.S (copyinmsg): New function. (copyoutmsg): New function.
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