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De Francesco" , Jonathan Corbet , Andrew Morton , "Mike Rapoport (IBM)" , Deming Wang , Ira Weiny , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: Catalin Marinas , Matthew Wilcox , Mike Rapoport , Peter Collingbourne , Peter Zijlstra , Sebastian Andrzej Siewior , Thomas Gleixner , Vlastimil Babka , Will Deacon References: <20230701142041.9992-1-fmdefrancesco@gmail.com> From: Randy Dunlap In-Reply-To: <20230701142041.9992-1-fmdefrancesco@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: C79EBA000B X-Stat-Signature: ot97qdta9a5zcfedo7xut9necbpmzjz5 X-Rspam-User: X-HE-Tag: 1688224911-121188 X-HE-Meta: U2FsdGVkX1+PPvHnWnYv/HQwvu9cvRVXgJgRn9bLzAiAPLpfRwbqEuf4twAXFXwAmstB9rbqAu/sSJKwsJVF7wWM1+abQ4OtMi1twMQ/v/WqI1NjlF/j1lsCVcLtsUhFnvWChsvigOBwoDEqiBKJS4lGGu2NoYOZEyuvKZDvW8oVAbQt+1z5GEa6085CGlRBTK8Ct9nA377U8iUk0ShZzn+QnBa4e+we64wpx208o80y9HtwWPJNHWZeHspTq+yeOy1vUwqfJRZvOf9GGF2zpdOiPEoza9LeFwS/34XCWNpigJPkj49FzD4AYyniUdPImFNXG0syAtGAGOQ2K9ziaAaUBZFjZhN2QfChE6PU/3ZKGF8DGHo7fhxduNod5RHMgK67rWoTjEjSPy9ZKGLK6XQgkIZq2/WR0qcrv6LP5+fLA0/uxNpDrfUSH4UTeMeFFRe1NUaElZEnMeTAbdw0JJmIcSmTIYmpOXJqv97K6wrTWlJtytZGXsTktW/N2t6Yu2uNFIyOKHxiPe7hQ38/iQhneyP8hRazw2Qq19VG5RsATlrjCUNvl5s2tn9C/ExrL8c2rtteTpbDQAf40zvDBR4OUVAo88UNoiKDpyMWViK2Iq6pVISVQgD3raW5R1LySVuLfKhJfq8zk2WwHxo36twGOWgAitzO4U4qJUHdv8HDkWOB83sp0f+B5ZrHFyAz6MxDXAoUKg+8BTBu2tZRkoYgRsgWPRsKIw9BgmQ6b19cTMYC8Itrp0Yg0jxdaQafVT8TyxGWM71DZdfupvWrXG6TqDisieEMTucbRy1jkTYdfclzLS6TPjBnlH0D9+IU8LGMoGgWlZF6fJ9JNEDBOhDOgf2YkyNyJ3EAAiY/6aRwPg8gQcg8hg8uPUsUa+gqACy3BkvgM55RkovvvgTerWZC5veNuldkAhMto+1pL6JqECAxff7M/TSb1u6FzLi+6XGpvs61VnI/H5TduZ7 GjZbsTfj 57u3edVnNDcJrzWyRk4mG2zibJBYof0Rtxg9kUmwDlWY5yVHEHuw+jiNjI60UjcxV3OJNOOYjY0VHWdkXbGHmLS4YbUTvC+nlH7fryJ/XmrG2CmG4KCq8HUJBrSLeN9+uuN8vxL7MPm4f0Mv5rAqLh8V78WIm2AcSUzd3KEAmHevtpVEoxHGpJQKIFc3eB88Fwc+t188WZzI/JZEZN7cWiakCLG4/9h1QRVLLs50rbIOwnBeBTgd+Wnbx+w== 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: On 7/1/23 07:19, Fabio M. De Francesco wrote: > > v1->v2: I thought to Cc everybody but Andrew :-( Sorry, fixed. > Andrew, can you please take this patch through your tree? > > Documentation/mm/highmem.rst | 27 +++++++++++++++------------ > 1 file changed, 15 insertions(+), 12 deletions(-) > > diff --git a/Documentation/mm/highmem.rst b/Documentation/mm/highmem.rst > index c964e0848702..bb9584f167a6 100644 > --- a/Documentation/mm/highmem.rst > +++ b/Documentation/mm/highmem.rst > @@ -51,11 +51,14 @@ Temporary Virtual Mappings > The kernel contains several ways of creating temporary mappings. The following > list shows them in order of preference of use. > > -* kmap_local_page(). This function is used to require short term mappings. > - It can be invoked from any context (including interrupts) but the mappings > - can only be used in the context which acquired them. > - > - This function should always be used, whereas kmap_atomic() and kmap() have > +* kmap_local_page(), kmap_local_folio() - These functions are used to require acquire ? > + short term mappings. They can be invoked from any context (including > + interrupts) but the mappings can only be used in the context which acquired > + them. The only differences between them consist in the first taking a pointer > + to a struct page and the second taking a pointer to struct folio and the byte > + offset within the folio which identifies the page. -- ~Randy