diff options
| author | Viresh Kumar <[email protected]> | 2025-06-09 11:14:16 +0000 |
|---|---|---|
| committer | Viresh Kumar <[email protected]> | 2025-06-12 05:01:28 +0000 |
| commit | c7f005f70d22cd5613cac30bf6d34867189e36a9 (patch) | |
| tree | ca697ecc8168ed4d9ca9315ac08ed530ac204c61 /rust/helpers/cpu.c | |
| parent | rust: Use CpuId in place of raw CPU numbers (diff) | |
| download | kernel-c7f005f70d22cd5613cac30bf6d34867189e36a9.tar.gz kernel-c7f005f70d22cd5613cac30bf6d34867189e36a9.zip | |
rust: cpu: Add CpuId::current() to retrieve current CPU ID
Introduce `CpuId::current()`, a constructor that wraps the C function
`raw_smp_processor_id()` to retrieve the current CPU identifier without
guaranteeing stability.
This function should be used only when the caller can ensure that
the CPU ID won't change unexpectedly due to preemption or migration.
Suggested-by: Boqun Feng <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Reviewed-by: Boqun Feng <[email protected]>
Diffstat (limited to 'rust/helpers/cpu.c')
| -rw-r--r-- | rust/helpers/cpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/rust/helpers/cpu.c b/rust/helpers/cpu.c new file mode 100644 index 000000000000..824e0adb19d4 --- /dev/null +++ b/rust/helpers/cpu.c @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/smp.h> + +unsigned int rust_helper_raw_smp_processor_id(void) +{ + return raw_smp_processor_id(); +} |