From: Mike Rapoport <rppt@kernel.org>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>,
Andrew Morton <akpm@linux-foundation.org>,
Pratyush Yadav <pratyush@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: memfd_luo: add CONFIG_SHMEM dependency
Date: Thu, 4 Dec 2025 13:01:04 +0200 [thread overview]
Message-ID: <aTFp8BOJUmMbAUjI@kernel.org> (raw)
In-Reply-To: <20251204100203.1034394-1-arnd@kernel.org>
On Thu, Dec 04, 2025 at 11:01:58AM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> The new memfd code fails to link without SHMEM:
>
> aarch64-linux-ld: mm/memfd_luo.o: in function `memfd_luo_retrieve_folios':
> memfd_luo.c:(.text.memfd_luo_retrieve_folios+0xdc): undefined reference to `shmem_add_to_page_cache'
> memfd_luo.c:(.text.memfd_luo_retrieve_folios+0x11c): undefined reference to `shmem_inode_acct_blocks'
> memfd_luo.c:(.text.memfd_luo_retrieve_folios+0x134): undefined reference to `shmem_recalc_inode'
>
> Add a Kconfig dependency to disallow that configuration.
>
> Fixes: b3749f174d68 ("mm: memfd_luo: allow preserving memfd")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
--
Sincerely yours,
Mike.
next prev parent reply other threads:[~2025-12-04 11:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-04 10:01 [PATCH] mm: memfd_luo: add CONFIG_SHMEM dependency Arnd Bergmann
2025-12-04 10:12 ` Pratyush Yadav
2025-12-04 11:01 ` Mike Rapoport [this message]
2025-12-04 14:09 ` Pasha Tatashin
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