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authorAlice Ryhl <aliceryhl@google.com>2025-09-02 08:36:11 +0000
committerAndrew Morton <akpm@linux-foundation.org>2025-09-21 14:22:26 -0700
commit6106864b878e1ce5ecab4b8ffffff85e9ec69b78 (patch)
treeb9442d26d79197c322bdd49cca6e1e5f5c8f2169
parent152d42584a98cb2e542932e63b25cc563224129f (diff)
maple_tree: remove lockdep_map_p typedef
Having the ma_external_lock field exist when CONFIG_LOCKDEP=n isn't used anywhere, so just get rid of it. This also avoids generating a typedef called lockdep_map_p that could overlap with typedefs in other header files. Link: https://lkml.kernel.org/r/20250902-maple-lockdep-p-v1-1-3ae5a398a379@google.com Signed-off-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--include/linux/maple_tree.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h
index 05730171d201..47f9002ae92d 100644
--- a/include/linux/maple_tree.h
+++ b/include/linux/maple_tree.h
@@ -194,7 +194,6 @@ enum store_type {
#define MAPLE_RESERVED_RANGE 4096
#ifdef CONFIG_LOCKDEP
-typedef struct lockdep_map *lockdep_map_p;
#define mt_lock_is_held(mt) \
(!(mt)->ma_external_lock || lock_is_held((mt)->ma_external_lock))
@@ -207,7 +206,6 @@ typedef struct lockdep_map *lockdep_map_p;
#define mt_on_stack(mt) (mt).ma_external_lock = NULL
#else
-typedef struct { /* nothing */ } lockdep_map_p;
#define mt_lock_is_held(mt) 1
#define mt_write_lock_is_held(mt) 1
#define mt_set_external_lock(mt, lock) do { } while (0)
@@ -230,8 +228,10 @@ typedef struct { /* nothing */ } lockdep_map_p;
*/
struct maple_tree {
union {
- spinlock_t ma_lock;
- lockdep_map_p ma_external_lock;
+ spinlock_t ma_lock;
+#ifdef CONFIG_LOCKDEP
+ struct lockdep_map *ma_external_lock;
+#endif
};
unsigned int ma_flags;
void __rcu *ma_root;