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| author | Wedson Almeida Filho <walmeida@microsoft.com> | 2023-04-11 02:45:40 -0300 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2023-04-22 00:20:00 +0200 |
| commit | 8da7a2b7432e8f043f04515895687f72cdb3e0a8 (patch) | |
| tree | 8dd15c2ad5e49e92aba260bed3a9a49b7759ebc5 /rust/helpers.c | |
| parent | 313c4281bc9dfa98d76a71b16a684af1c52e7751 (diff) | |
| download | lwn-8da7a2b7432e8f043f04515895687f72cdb3e0a8.tar.gz lwn-8da7a2b7432e8f043f04515895687f72cdb3e0a8.zip | |
rust: introduce `current`
This allows Rust code to get a reference to the current task without
having to increment the refcount, but still guaranteeing memory safety.
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20230411054543.21278-10-wedsonaf@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'rust/helpers.c')
| -rw-r--r-- | rust/helpers.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/rust/helpers.c b/rust/helpers.c index 6e5b2c953d36..2cb7b82053d8 100644 --- a/rust/helpers.c +++ b/rust/helpers.c @@ -103,6 +103,12 @@ long rust_helper_PTR_ERR(__force const void *ptr) } EXPORT_SYMBOL_GPL(rust_helper_PTR_ERR); +struct task_struct *rust_helper_get_current(void) +{ + return current; +} +EXPORT_SYMBOL_GPL(rust_helper_get_current); + void rust_helper_get_task_struct(struct task_struct *t) { get_task_struct(t); |