diff options
| author | Mitchell Levy <levymitchell0@gmail.com> | 2025-03-07 15:27:01 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-03-08 00:55:04 +0100 |
| commit | f73ca66f0d7f4371d172d6f5b1f9a00e367ba921 (patch) | |
| tree | f61b0e29525c92a198a8c0ab3389437e000f5b82 /rust/helpers | |
| parent | 70b9c8563c9c29102a785d4822f0d77d33fee808 (diff) | |
rust: lockdep: Use Pin for all LockClassKey usages
Reintroduce dynamically-allocated LockClassKeys such that they are
automatically (de)registered. Require that all usages of LockClassKeys
ensure that they are Pin'd.
Currently, only `'static` LockClassKeys are supported, so Pin is
redundant. However, it is intended that dynamically-allocated
LockClassKeys will eventually be supported, so using Pin from the outset
will make that change simpler.
Closes: https://github.com/Rust-for-Linux/linux/issues/1102
Suggested-by: Benno Lossin <benno.lossin@proton.me>
Suggested-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Mitchell Levy <levymitchell0@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20250307232717.1759087-12-boqun.feng@gmail.com
Diffstat (limited to 'rust/helpers')
| -rw-r--r-- | rust/helpers/helpers.c | 1 | ||||
| -rw-r--r-- | rust/helpers/sync.c | 13 |
2 files changed, 14 insertions, 0 deletions
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 0640b7e115be1..4c1a10a419cf1 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -30,6 +30,7 @@ #include "signal.c" #include "slab.c" #include "spinlock.c" +#include "sync.c" #include "task.c" #include "uaccess.c" #include "vmalloc.c" diff --git a/rust/helpers/sync.c b/rust/helpers/sync.c new file mode 100644 index 0000000000000..ff7e68b488101 --- /dev/null +++ b/rust/helpers/sync.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/lockdep.h> + +void rust_helper_lockdep_register_key(struct lock_class_key *k) +{ + lockdep_register_key(k); +} + +void rust_helper_lockdep_unregister_key(struct lock_class_key *k) +{ + lockdep_unregister_key(k); +} |