Messages in this thread | | | From | Jann Horn <> | Date | Sun, 17 Sep 2017 18:52:46 -0700 | Subject | Re: [patch] mremap.2: Add description of old_size == 0 functionality |
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On Fri, Sep 15, 2017 at 2:37 PM, Mike Kravetz <mike.kravetz@oracle.com> wrote: [...] > A recent change was made to mremap so that an attempt to create a > duplicate a private mapping will fail. > > commit dba58d3b8c5045ad89c1c95d33d01451e3964db7 > Author: Mike Kravetz <mike.kravetz@oracle.com> > Date: Wed Sep 6 16:20:55 2017 -0700 > > mm/mremap: fail map duplication attempts for private mappings > > This return code is also documented here. [...] > diff --git a/man2/mremap.2 b/man2/mremap.2 [...] > @@ -174,7 +189,12 @@ and > or > .B MREMAP_FIXED > was specified without also specifying > -.BR MREMAP_MAYMOVE . > +.BR MREMAP_MAYMOVE ; > +or \fIold_size\fP was zero and \fIold_address\fP does not refer to a > +private anonymous mapping;
Shouldn't this be the other way around? "or old_size was zero and old_address refers to a private anonymous mapping"?
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