"Maciej W. Rozycki" wrote: > > On Mon, 28 May 2001, Kevin D. Kissell wrote: > > > Use a global variable testable by the inline code? > > With both variants inlined? Now that's really ugly. I think system V requires _test_and_set() being included in the libsys dynamic library. Does Linux want to be sysv compatible? If so, we should removed the inlined _test_and_set(). > > > > Are vr41xx plain ISA I or crippled ISA II+ CPUs? > > > > Actually, they are crippled MIPS III+ 64-bit CPUs > > Then an ll/sc and lld/scd emulation seems to be most appropriate here. I > don't think we want to add _test_and_set() to mips64*-linux. > 64 bit is a overkill for the pityful vr41xx CPUs. The need for kernel emulated test_and_set() in 64bit kernel is not obvious yet, and hopefully will never come. Jun
