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Tsirkin" , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andy Lutomirski , Vlastimil Babka , Andrea Arcangeli , Sonny Rao , Minchan Kim , "Kirill A . Shutemov" , Dmitry Safonov , Michael Kerrisk , Andrew Morton References: <20210303175235.3308220-1-bgeffon@google.com> <20210323182520.2712101-1-bgeffon@google.com> <20210323182520.2712101-4-bgeffon@google.com> From: "Alejandro Colomar (man-pages)" Message-ID: <9c0b4b2a-3678-186a-072a-280628e5da02@gmail.com> Date: Thu, 25 Mar 2021 22:34:41 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210323182520.2712101-4-bgeffon@google.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Stat-Signature: ac4mhtqpt8sbg7gp5y5gtt9ddmqpeoa1 X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 4230480192E4 Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf16; identity=mailfrom; envelope-from=""; helo=mail-wr1-f54.google.com; client-ip=209.85.221.54 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1616708083-286874 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello Brian, Is this already merged in Linux? I guess not, as I've seen a patch of yous for the kernel, right? Thanks, Alex On 3/23/21 7:25 PM, Brian Geffon wrote: > mremap(2) now supports MREMAP_DONTUNMAP with mapping types other > than private anonymous. > > Signed-off-by: Brian Geffon > --- > man2/mremap.2 | 13 ++----------- > 1 file changed, 2 insertions(+), 11 deletions(-) > > diff --git a/man2/mremap.2 b/man2/mremap.2 > index 3ed0c0c0a..72acbc111 100644 > --- a/man2/mremap.2 > +++ b/man2/mremap.2 > @@ -118,16 +118,6 @@ This flag, which must be used in conjunction with > remaps a mapping to a new address but does not unmap the mapping at > .IR old_address . > .IP > -The > -.B MREMAP_DONTUNMAP > -flag can be used only with private anonymous mappings > -(see the description of > -.BR MAP_PRIVATE > -and > -.BR MAP_ANONYMOUS > -in > -.BR mmap (2)). > -.IP > After completion, > any access to the range specified by > .IR old_address > @@ -227,7 +217,8 @@ was specified, but one or more pages in the range specified by > .IR old_address > and > .IR old_size > -were not private anonymous; > +were part of a special mapping or the mapping is one that > +does not support merging or expanding; > .IP * > .B MREMAP_DONTUNMAP > was specified and > -- Alejandro Colomar Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/ http://www.alejandro-colomar.es/