linux-kernel - [PATCH mm-unstable 16/17] mm: Fallback to generic_mmap

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Message-ID: <20241210024119.2488608-17-kaleshsingh@google.com>
Date: Mon,  9 Dec 2024 18:41:18 -0800
From: Kalesh Singh <kaleshsingh@...gle.com>
To: akpm@...ux-foundation.org, vbabka@...e.cz, yang@...amperecomputing.com, 
	riel@...riel.com, david@...hat.com
Cc: linux@...linux.org.uk, tsbogend@...ha.franken.de, 
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	Kalesh Singh <kaleshsingh@...gle.com>
Subject: [PATCH mm-unstable 16/17] mm: Fallback to generic_mmap_hint()

If an architecture doesn't provide arch_mmap_hint() fallback to
generic_mmap_hint().

Signed-off-by: Kalesh Singh <kaleshsingh@...gle.com>
---
 mm/mmap.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mm/mmap.c b/mm/mmap.c
index e97eb8bf4889..59bf7d127aa1 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -691,6 +691,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 }
 #endif
 
+#ifndef HAVE_ARCH_MMAP_HINT
+unsigned long arch_mmap_hint(struct file *filp, unsigned long addr,
+			     unsigned long len, unsigned long pgoff,
+			     unsigned long flags)
+{
+	return generic_mmap_hint(filp, addr, len, pgoff, flags);
+}
+#endif
+
 /*
  * This mmap-allocator allocates new areas top-down from below the
  * stack's low limit (the base):
-- 
2.47.0.338.g60cca15819-goog