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Message-ID: <20250901123028.3383461-5-max.kellermann@ionos.com>
Date: Mon, 1 Sep 2025 14:30:20 +0200
From: Max Kellermann <max.kellermann@...os.com>
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Subject: [PATCH v5 04/12] fs: constify mapping related test functions for improved const-correctness
We select certain test functions which either invoke each other,
functions that are already const-ified, or no further functions.
It is therefore relatively trivial to const-ify them, which
provides a basis for further const-ification further up the call
stack.
Signed-off-by: Max Kellermann <max.kellermann@...os.com>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@...il.com>
---
include/linux/fs.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3b9f54446db0..8dc46337467d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -537,7 +537,8 @@ struct address_space {
/*
* Returns true if any of the pages in the mapping are marked with the tag.
*/
-static inline bool mapping_tagged(struct address_space *mapping, xa_mark_t tag)
+static inline bool mapping_tagged(const struct address_space *const mapping,
+ const xa_mark_t tag)
{
return xa_marked(&mapping->i_pages, tag);
}
@@ -585,7 +586,7 @@ static inline void i_mmap_assert_write_locked(struct address_space *mapping)
/*
* Might pages of this file be mapped into userspace?
*/
-static inline int mapping_mapped(struct address_space *mapping)
+static inline int mapping_mapped(const struct address_space *const mapping)
{
return !RB_EMPTY_ROOT(&mapping->i_mmap.rb_root);
}
@@ -599,7 +600,7 @@ static inline int mapping_mapped(struct address_space *mapping)
* If i_mmap_writable is negative, no new writable mappings are allowed. You
* can only deny writable mappings, if none exists right now.
*/
-static inline int mapping_writably_mapped(struct address_space *mapping)
+static inline int mapping_writably_mapped(const struct address_space *const mapping)
{
return atomic_read(&mapping->i_mmap_writable) > 0;
}
--
2.47.2
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