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Message-ID: <5f120b644b5890d1b50202d0f0d4c9f0d6b62873.1750099179.git.lorenzo.stoakes@oracle.com>
Date: Mon, 16 Jun 2025 20:33:21 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Liam R . Howlett" <Liam.Howlett@...cle.com>, Jens Axboe <axboe@...nel.dk>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tursulin@...ulin.net>,
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Eric Van Hensbergen <ericvh@...nel.org>,
Latchesar Ionkov <lucho@...kov.net>,
Dominique Martinet <asmadeus@...ewreck.org>,
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David Sterba <dsterba@...e.com>, David Howells <dhowells@...hat.com>,
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Subject: [PATCH 02/10] mm/nommu: use file_has_valid_mmap_hooks() helper
Since commit c84bf6dd2b83 ("mm: introduce new .mmap_prepare() file
callback"), the f_op->mmap() hook has been deprecated in favour of
f_op->mmap_prepare().
Therefore, update the check for file operations supporting mmap() by using
the file_has_valid_mmap_hooks() helper function, which checks for either
f_op->mmap or f_op->mmap_prepare rather than checking only for f_op->mmap
directly.
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
---
mm/nommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/nommu.c b/mm/nommu.c
index b624acec6d2e..38c22ea0a95c 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -719,7 +719,7 @@ static int validate_mmap_request(struct file *file,
if (file) {
/* files must support mmap */
- if (!file->f_op->mmap)
+ if (!file_has_valid_mmap_hooks(file))
return -ENODEV;
/* work out if what we've got could possibly be shared
--
2.49.0
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