Date: Tue, 6 Jul 2004 15:41:34 +1000 From: Tim Robbins <tjr@freebsd.org> To: ngl <ngl@ur.ru> Cc: freebsd-stable@freebsd.org Subject: Re: Shared/exclusive (rw) locks Message-ID: <20040706054134.GB63647@cat.robbins.dropbear.id.au> In-Reply-To: <0e3d01c46316$df50c7a0$8501a8c0@spirit> References: <0e0401c46312$089eea10$8501a8c0@spirit> <20040706050055.GA63647@cat.robbins.dropbear.id.au> <0e3d01c46316$df50c7a0$8501a8c0@spirit>
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On Tue, Jul 06, 2004 at 11:05:35AM +0600, ngl wrote: > Thanks > > I've found it too. > > But > /* > * The general lock structure. Provides for multiple shared locks, > * upgrading from shared to exclusive, and sleeping until the lock > * can be gained. The simple locks are defined in <machine/param.h>. > */ > > What means sleeping ? I need spinlock. > I cannot allow to fall asleep to kernel thread. You'll need to use simplelocks or spls then, as appropriate to the situation. Tim P.S.: This probably isn't the right mailing list for this discussion.
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