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| author | Eder Zulian <ezulian@redhat.com> | 2024-11-07 17:32:23 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-11-11 11:49:46 +0100 |
| commit | 5c2e7736e20d9b348a44cafbfa639fe2653fbc34 (patch) | |
| tree | 10bfe2498df893aef10171b7e21e695b088ac1c4 /kernel/locking/rtmutex_api.c | |
| parent | 183ec5f26b2fc97a4a9871865bfe9b33c41fddb2 (diff) | |
| download | linux-5c2e7736e20d9b348a44cafbfa639fe2653fbc34.tar.gz linux-5c2e7736e20d9b348a44cafbfa639fe2653fbc34.tar.bz2 linux-5c2e7736e20d9b348a44cafbfa639fe2653fbc34.zip | |
rust: helpers: Avoid raw_spin_lock initialization for PREEMPT_RT
When PREEMPT_RT=y, spin locks are mapped to rt_mutex types, so using
spinlock_check() + __raw_spin_lock_init() to initialize spin locks is
incorrect, and would cause build errors.
Introduce __spin_lock_init() to initialize a spin lock with lockdep
rquired information for PREEMPT_RT builds, and use it in the Rust
helper.
Fixes: d2d6422f8bd1 ("x86: Allow to enable PREEMPT_RT.")
Closes: https://lore.kernel.org/oe-kbuild-all/202409251238.vetlgXE9-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Eder Zulian <ezulian@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20241107163223.2092690-2-ezulian@redhat.com
Diffstat (limited to 'kernel/locking/rtmutex_api.c')
0 files changed, 0 insertions, 0 deletions