RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 12:38:12 +00:00
Code Issues Activity Actions

Kernel/SMP: Make entering/leaving critical sections multi-processor safe

Browse source 
By making these functions static we close a window where we could get
preempted after calling Processor::current() and move to another
processor.

Co-authored-by: Tom <tomut@yahoo.com>
This commit is contained in:
Andreas Kling 2021-08-10 01:16:08 +02:00
parent 369e3da6a2
commit 9babb92a4b
11 changed files with 82 additions and 53 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Kernel/Heap/kmalloc.cpp
View file

@ -212,7 +212,7 @@ static inline void kmalloc_verify_nospinlock_held()
{
// Catch bad callers allocating under spinlock.
if constexpr (KMALLOC_VERIFY_NO_SPINLOCK_HELD) {
VERIFY(!Processor::current().in_critical());
VERIFY(!Processor::in_critical());
}
}