diff options
| author | Wedson Almeida Filho <walmeida@microsoft.com> | 2023-04-11 02:45:33 -0300 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2023-04-22 00:20:00 +0200 |
| commit | 6d20d629c6d8575be98eeebe49a16fb2d7b32350 (patch) | |
| tree | 7c0df7bfbfbcdc511ebec0272bee28e60746cccc /rust/helpers.c | |
| parent | 76d4bd591e1101df69c44c819041e374c63f1194 (diff) | |
rust: lock: introduce `Mutex`
This is the `struct mutex` lock backend and allows Rust code to use the
kernel mutex idiomatically.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20230411054543.21278-3-wedsonaf@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'rust/helpers.c')
| -rw-r--r-- | rust/helpers.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/rust/helpers.c b/rust/helpers.c index 04b9be46e887..86af099d2d66 100644 --- a/rust/helpers.c +++ b/rust/helpers.c @@ -22,6 +22,7 @@ #include <linux/build_bug.h> #include <linux/err.h> #include <linux/refcount.h> +#include <linux/mutex.h> __noreturn void rust_helper_BUG(void) { @@ -29,6 +30,12 @@ __noreturn void rust_helper_BUG(void) } EXPORT_SYMBOL_GPL(rust_helper_BUG); +void rust_helper_mutex_lock(struct mutex *lock) +{ + mutex_lock(lock); +} +EXPORT_SYMBOL_GPL(rust_helper_mutex_lock); + refcount_t rust_helper_REFCOUNT_INIT(int n) { return (refcount_t)REFCOUNT_INIT(n); |