linux-kernel - [PATCH v3 0/2] man/man2/mremap.2: describe multiple mapping move, shrink

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Message-ID: <cover.1753795807.git.lorenzo.stoakes@oracle.com>
Date: Tue, 29 Jul 2025 14:47:34 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Alejandro Colomar <alx@...nel.org>
Cc: linux-man@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>,
        Peter Xu <peterx@...hat.com>, Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>,
        Pedro Falcato <pfalcato@...e.de>, Rik van Riel <riel@...riel.com>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-api@...r.kernel.org
Subject: [PATCH v3 0/2] man/man2/mremap.2: describe multiple mapping move, shrink

We have added new functionality to mremap() in Linux 6.17, permitting the
move of multiple VMAs when performing a move alone (that is - providing
MREMAP_MAYMOVE | MREMAP_FIXED flags and specifying old_size == new_size).

We document this new feature.

Additionally, we document previously undocumented behaviour around
shrinking of input VMA ranges which permits the input range to span
multiple VMAs.

v3:
* Use more precise language around mremap() move description as per Jann.
* Fix some typos in commit messages.

v2:
* Split out the two man page changes as requested by Alejandro.
https://lore.kernel.org/all/cover.1753711160.git.lorenzo.stoakes@oracle.com/

v1:
https://lore.kernel.org/all/20250723174634.75054-1-lorenzo.stoakes@oracle.com/

Lorenzo Stoakes (2):
  man/man2/mremap.2: describe multiple mapping move
  man/man2/mremap.2: describe previously undocumented shrink behaviour

 man/man2/mremap.2 | 100 +++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 89 insertions(+), 11 deletions(-)

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2.50.1