Lee, On Thu, Aug 7, 2008 at 6:21 PM, Lee Schermerhorn <Lee.Schermerhorn@xxxxxx> wrote: > On Thu, 2008-08-07 at 15:35 +0200, Michael Kerrisk wrote: >> Lee, >> >> Lee Schermerhorn wrote: >> > Attempt to claify discussion of MPOL_DEFAULT. >> > >> > Signed-off-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx> >> >> These look like good changes. >> >> One question: is this just improving the description, or has some behavior >> changed in a recent kernel version, and the text is being adjusted for that >> change? > > I'd like to think it improves the description :). Already discussed the > change in implementation != change in behavior in response to the same > question on [one of the] patch #4. > > I see that here I used "explicit \"local allocation\"" again, but with > the quotes in what I think are the right places. I've applied tis for man-page-3.07. Thanks! Michael > >> >> Cheers, >> >> Michael >> >> > >> > man2/mbind.2 | 18 +++++++++++++----- >> > 1 files changed, 13 insertions(+), 5 deletions(-) >> > >> > Index: man-pages-3.05/man2/mbind.2 >> > =================================================================== >> > --- man-pages-3.05.orig/man2/mbind.2 2008-07-29 16:53:48.000000000 -0400 >> > +++ man-pages-3.05/man2/mbind.2 2008-07-29 16:54:13.000000000 -0400 >> > @@ -184,7 +184,8 @@ the memory policy reverts to >> > >> > The >> > .B MPOL_DEFAULT >> > -mode specifies that the default policy should be used. >> > +mode requests that any non-default policy be removed, >> > +restoring default behavior. >> > When applied to a range of memory via >> > .BR mbind (), >> > this means to use the process policy, >> > @@ -193,7 +194,7 @@ which may have been set with >> > If the mode of the process policy is also >> > .BR MPOL_DEFAULT , >> > the system-wide default policy will be used. >> > -The system-wide default policy will allocate >> > +The system-wide default policy allocates >> > pages on the node of the CPU that triggers the allocation. >> > For >> > .BR MPOL_DEFAULT , >> > @@ -399,20 +400,27 @@ is ignored on huge page mappings. >> > >> > The >> > .BR MPOL_DEFAULT , >> > -mode has different effects for >> > +mode can have different effects for >> > .BR mbind () >> > and >> > .BR set_mempolicy (2). >> > When >> > .B MPOL_DEFAULT >> > +is specified for >> > +.BR set_mempolicy (2), >> > +the process' policy reverts to system default policy >> > +or local allocation. >> > +When >> > +.B MPOL_DEFAULT >> > is specified for a range of memory using >> > .BR mbind (), >> > any pages subsequently allocated for that range will use >> > the process's policy, as set by >> > .BR set_mempolicy (2). >> > This effectively removes the explicit policy from the >> > -specified range. >> > -To select "local allocation" for a memory range, >> > +specified range, "falling back" to a possibly non-default >> > +policy. >> > +To select explicit "local allocation" for a memory range, >> > specify a >> > .I mode >> > of >> > >> > > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ man-pages online: http://www.kernel.org/doc/man-pages/online_pages.html Found a bug? http://www.kernel.org/doc/man-pages/reporting_bugs.html -- To unsubscribe from this list: send the line "unsubscribe linux-numa" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
