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From: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
To: "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>,
	Clemens Ladisch <clemens@ladisch.de>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"K . Y . Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
	Long Li <longli@microsoft.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Bodo Stroesser <bostroesser@gmail.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	David Howells <dhowells@redhat.com>,
	Marc Dionne <marc.dionne@auristor.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
	David Hildenbrand <david@kernel.org>,
	"Liam R . Howlett" <Liam.Howlett@oracle.com>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Jann Horn <jannh@google.com>,
	Pedro Falcato <pfalcato@suse.de>,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-hyperv@vger.kernel.org, linux-mtd@lists.infradead.org,
	linux-staging@lists.linux.dev, linux-scsi@vger.kernel.org,
	target-devel@vger.kernel.org, linux-afs@lists.infradead.org,
	linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
	Ryan Roberts <ryan.roberts@arm.com>
Subject: Re: [PATCH v3 02/16] mm: add documentation for the mmap_prepare file operation callback
Date: Fri, 20 Mar 2026 18:23:49 +0100	[thread overview]
Message-ID: <b917813f-78fb-4c31-913c-5e343c52cab7@kernel.org> (raw)
In-Reply-To: <172ef809d9976b067bba4cd9d2b78410c6c6d03d.1773944114.git.ljs@kernel.org>

On 3/19/26 19:23, Lorenzo Stoakes (Oracle) wrote:
> This documentation makes it easier for a driver/file system implementer to
> correctly use this callback.
> 
> It covers the fundamentals, whilst intentionally leaving the less lovely
> possible actions one might take undocumented (for instance - the
> success_hook, error_hook fields in mmap_action).
> 
> The document also covers the new VMA flags implementation which is the
> only one which will work correctly with mmap_prepare.
> 
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>

Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>


WARNING: multiple messages have this Message-ID (diff)
From: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
To: "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>,
	Clemens Ladisch <clemens@ladisch.de>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"K . Y . Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
	Long Li <longli@microsoft.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Bodo Stroesser <bostroesser@gmail.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	David Howells <dhowells@redhat.com>,
	Marc Dionne <marc.dionne@auristor.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
	David Hildenbrand <david@kernel.org>,
	"Liam R . Howlett" <Liam.Howlett@oracle.com>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Jann Horn <jannh@google.com>,
	Pedro Falcato <pfalcato@suse.de>,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-hyperv@vger.kernel.org, linux-mtd@lists.infradead.org,
	linux-staging@lists.linux.dev, linux-scsi@vger.kernel.org,
	target-devel@vger.kernel.org, linux-afs@lists.infradead.org,
	linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
	Ryan Roberts <ryan.roberts@arm.com>
Subject: Re: [PATCH v3 02/16] mm: add documentation for the mmap_prepare file operation callback
Date: Fri, 20 Mar 2026 18:23:49 +0100	[thread overview]
Message-ID: <b917813f-78fb-4c31-913c-5e343c52cab7@kernel.org> (raw)
In-Reply-To: <172ef809d9976b067bba4cd9d2b78410c6c6d03d.1773944114.git.ljs@kernel.org>

On 3/19/26 19:23, Lorenzo Stoakes (Oracle) wrote:
> This documentation makes it easier for a driver/file system implementer to
> correctly use this callback.
> 
> It covers the fundamentals, whilst intentionally leaving the less lovely
> possible actions one might take undocumented (for instance - the
> success_hook, error_hook fields in mmap_action).
> 
> The document also covers the new VMA flags implementation which is the
> only one which will work correctly with mmap_prepare.
> 
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>

Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2026-03-20 17:23 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-19 18:23 [PATCH v3 00/16] mm: expand mmap_prepare functionality and usage Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 01/16] mm: various small mmap_prepare cleanups Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-20 17:10   ` Vlastimil Babka (SUSE)
2026-03-20 17:10     ` Vlastimil Babka (SUSE)
2026-03-19 18:23 ` [PATCH v3 02/16] mm: add documentation for the mmap_prepare file operation callback Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-20 17:23   ` Vlastimil Babka (SUSE) [this message]
2026-03-20 17:23     ` Vlastimil Babka (SUSE)
2026-03-19 18:23 ` [PATCH v3 03/16] mm: document vm_operations_struct->open the same as close() Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-20 17:30   ` Vlastimil Babka (SUSE)
2026-03-20 17:30     ` Vlastimil Babka (SUSE)
2026-03-19 18:23 ` [PATCH v3 04/16] mm: add vm_ops->mapped hook Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-20 18:26   ` Vlastimil Babka (SUSE)
2026-03-20 18:26     ` Vlastimil Babka (SUSE)
2026-03-20 19:57     ` Lorenzo Stoakes (Oracle)
2026-03-20 19:57       ` Lorenzo Stoakes (Oracle)
2026-03-20 20:43     ` Lorenzo Stoakes (Oracle)
2026-03-20 20:43       ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 05/16] fs: afs: correctly drop reference count on mapping failure Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-20 18:57   ` Vlastimil Babka (SUSE)
2026-03-20 18:57     ` Vlastimil Babka (SUSE)
2026-03-20 19:01     ` Lorenzo Stoakes (Oracle)
2026-03-20 19:01       ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 06/16] mm: add mmap_action_simple_ioremap() Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 07/16] misc: open-dice: replace deprecated mmap hook with mmap_prepare Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 08/16] hpet: " Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 09/16] mtdchar: replace deprecated mmap hook with mmap_prepare, clean up Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 10/16] stm: replace deprecated mmap hook with mmap_prepare Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 11/16] staging: vme_user: " Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 12/16] mm: allow handling of stacked mmap_prepare hooks in more drivers Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 13/16] drivers: hv: vmbus: replace deprecated mmap hook with mmap_prepare Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 14/16] uio: replace deprecated mmap hook with mmap_prepare in uio_info Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 15/16] mm: add mmap_action_map_kernel_pages[_full]() Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-20 21:08   ` Nathan Chancellor
2026-03-20 21:08     ` Nathan Chancellor
2026-03-20 22:14     ` Lorenzo Stoakes (Oracle)
2026-03-20 22:14       ` Lorenzo Stoakes (Oracle)
2026-03-19 18:23 ` [PATCH v3 16/16] mm: on remap assert that input range within the proposed VMA Lorenzo Stoakes (Oracle)
2026-03-19 18:23   ` Lorenzo Stoakes (Oracle)
2026-03-19 20:31 ` [PATCH v3 00/16] mm: expand mmap_prepare functionality and usage Andrew Morton
2026-03-19 20:31   ` Andrew Morton

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