diff options
| author |   Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2025-01-08 10:04:43 +0100 |
|---|---|---|
| committer |   Petr Pavlu <petr.pavlu@suse.com> | 2025-03-10 11:54:45 +0100 |
| commit | 6593a2c990f251bce63ab8de0397405303e32381 (patch) | |
| tree | d6ac6434f1f92c1c4c654de90e1d26d039265060 /kernel/module/main.c | |
| parent | module: Use RCU in search_module_extables(). (diff) | |
| download | wireguard-linux-6593a2c990f251bce63ab8de0397405303e32381.tar.xz wireguard-linux-6593a2c990f251bce63ab8de0397405303e32381.zip | |
module: Use RCU in all users of __module_address().
__module_address() can be invoked within a RCU section, there is no
requirement to have preemption disabled.
Replace the preempt_disable() section around __module_address() with
RCU.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250108090457.512198-15-bigeasy@linutronix.de
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Diffstat (limited to 'kernel/module/main.c')
| -rw-r--r-- | kernel/module/main.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/kernel/module/main.c b/kernel/module/main.c index aebb17e1bfb9..8a8b499730d8 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -3731,13 +3731,8 @@ const struct exception_table_entry *search_module_extables(unsigned long addr) */ bool is_module_address(unsigned long addr) { - bool ret; - - preempt_disable(); - ret = __module_address(addr) != NULL; - preempt_enable(); - - return ret; + guard(rcu)(); + return __module_address(addr) != NULL; } /** |