Date: Sun, 15 Apr 2007 10:57:56 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Scott Long <scottl@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/cam cam_ccb.h cam_periph.c cam_periph.h cam_sim.c cam_sim.h cam_xpt.c cam_xpt.h cam_xpt_periph.h src/sys/cam/scsi scsi_cd.c scsi_ch.c scsi_da.c scsi_low.c scsi_pass.c scsi_pt.c scsi_sa.c scsi_ses.c scsi_sg.c ... Message-ID: <20070415105711.T84174@fledge.watson.org> In-Reply-To: <200704150849.l3F8nKhw040250@repoman.freebsd.org> References: <200704150849.l3F8nKhw040250@repoman.freebsd.org>
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On Sun, 15 Apr 2007, Scott Long wrote: > Remove Giant from CAM. Drivers (SIMs) now register a mutex that CAM will > use to synchornize and protect all data objects that are used for that > SIM. Drivers that are not yet MPSAFE register Giant and operate as > usual. RIght now, no drivers are MPSAFE, though a few will be changed > in the coming week as this work settles down. > > The driver API has changed, so all CAM drivers will need to be recompiled. > The userland API has not changed, so tools like camcontrol do not need to > be recompiled. Excellent. This was one of the few remaining serious pieces of non-MPSAFE infrastructure in the kernel. Thanks greatly for doing this work! Robert N M Watson Computer Laboratory University of Cambridge
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