Re: [patch] mremap.2: Add description of old_size == 0 functionality
From: Jann Horn <hidden>
Date: 2017-09-18 01:53:09
Also in:
linux-api, linux-mm, lkml
On Fri, Sep 15, 2017 at 2:37 PM, Mike Kravetz [off-list ref] 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 [off-list ref]
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.[...]
quoted hunk ↗ jump to hunk
diff --git a/man2/mremap.2 b/man2/mremap.2
[...]
quoted hunk ↗ jump to hunk
@@ -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"? -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html