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 ...
rwatson at FreeBSD.org
Sun Apr 15 09:57:57 UTC 2007
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
University of Cambridge
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