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serenity/Kernel
History
Brian Gianforcaro 1415b2cfc3 Kernel: Do not allocate AnonymousVMObject's under spin lock 
Spinlocks guard short regions, with hopefully no other locks being taken
in the process. Violating constraints usually had detrimental effects on
platform stability as well as performance and scalability. Allocating
memory takes it own locks, and can in some cases even allocate new
regions, and thus violates these tenants.

Move the AnonymousVMObject creation outside of the spinlock as
creation does not modify any shared state.
2021-05-20 08:10:07 +02:00
..
ACPI Kernel/ACPI: Map two pages when reading the FADT 2021-05-08 19:15:54 +02:00
API Kernel: Add statvfs & fstatvfs Syscalls 2021-05-19 21:33:29 +02:00
Arch Kernel: Generate page fault events from the kernel profiler 2021-05-19 22:51:42 +02:00
Devices Kernel: static vs non-static constexpr variables 2021-05-19 21:21:47 +01:00
FileSystem Kernel: static vs non-static constexpr variables 2021-05-19 21:21:47 +01:00
Graphics Everywhere: Fix a bunch of typos 2021-05-17 17:48:55 +01:00
Heap Kernel: Add support for profiling kmalloc()/kfree() 2021-05-19 22:51:42 +02:00
Interrupts Kernel: Add Processor::is_bootstrap_processor() function, and use it. (#6871) 2021-05-05 18:48:26 +02:00
Modules Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Net Kernel: static vs non-static constexpr variables 2021-05-19 21:21:47 +01:00
PCI Kernel: Add support for QEMU's emulated pci serial (-pci-serial option) 2021-05-17 19:45:35 +01:00
Storage Kernel: Don't ref-count UsedMemoryRange during iteration 2021-05-16 19:58:33 +02:00
Syscalls Kernel: Avoid an allocation in sys$poll 2021-05-19 22:51:42 +02:00
Tasks Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Time Kernel: Fix return value for {enable,disable}_profile_timer() 2021-05-17 21:53:04 +02:00
TTY Kernel: static vs non-static constexpr variables 2021-05-19 21:21:47 +01:00
VirtIO Kernel: Reorder VirtIODevice PCI initialization steps 2021-05-15 23:29:03 +01:00
VM Kernel: Do not allocate AnonymousVMObject's under spin lock 2021-05-20 08:10:07 +02:00
AddressSanitizer.cpp Everywhere: Use bgianf@serenityos.org for my copyright attribution 2021-04-22 21:15:54 +02:00
AddressSanitizer.h Everywhere: Use bgianf@serenityos.org for my copyright attribution 2021-04-22 21:15:54 +02:00
Assertions.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
CMakeLists.txt Kernel: Add statvfs & fstatvfs Syscalls 2021-05-19 21:33:29 +02:00
CMOS.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
CMOS.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
CommandLine.cpp Kernel: Allow the user to specify the virtual console when booting 2021-05-16 19:58:33 +02:00
CommandLine.h Kernel: Allow the user to specify the virtual console when booting 2021-05-16 19:58:33 +02:00
ConsoleDevice.cpp Kernel: Rename Console => ConsoleDevice 2021-05-16 19:58:33 +02:00
ConsoleDevice.h Kernel: Rename Console => ConsoleDevice 2021-05-16 19:58:33 +02:00
CoreDump.cpp Everywhere: Use linusg@serenityos.org for my copyright headers 2021-04-22 22:51:19 +02:00
CoreDump.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Debug.h.in Kernel/Graphics + SystemServer: Support text mode properly 2021-05-16 19:58:33 +02:00
DMI.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
DMI.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
DoubleBuffer.cpp Kernel: Don't update write_pos in DoubleBuffer if userspace copy fails 2021-05-18 16:47:26 +02:00
DoubleBuffer.h Kernel: Implement peek() function for DoubleBuffer 2021-04-29 08:09:53 +02:00
Forward.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
FutexQueue.cpp Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
FutexQueue.h Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
init.cpp Kernel+LibC: Add support for filtering profiling events 2021-05-19 22:51:42 +02:00
IO.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
KBuffer.h Kernel: Make KBuffer::try_create_with* APIs OOM safe 2021-05-13 16:21:53 +02:00
KBufferBuilder.cpp Kernel: Replace make<T>() with adopt_own_if_nonnull() in KBufferBuilder 2021-05-13 16:21:53 +02:00
KBufferBuilder.h Kernel: Avoid allocations in KBufferBuilder::appendff 2021-05-13 08:27:42 +02:00
kprintf.cpp Kernel: Implement a PCI Serial Device driver 2021-05-17 18:15:25 +02:00
KResult.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
kstdio.h Kernel/Graphics + SystemServer: Support text mode properly 2021-05-16 19:58:33 +02:00
KSyms.cpp Kernel: Check kernel symbol's name length matches searched name 2021-04-28 22:14:32 +02:00
KSyms.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
linker.ld Kernel: Define a KERNEL_VIRTUAL_BASE in the linker script 2021-03-04 18:25:01 +01:00
Lock.cpp Kernel: Utilize AK::SourceLocation for LOCK_DEBUG instrumentation. 2021-04-25 09:38:27 +02:00
Lock.h Kernel: Remove the now defunct LOCKER(..) macro. 2021-04-25 09:38:27 +02:00
LockMode.h Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
mkmap.sh Build: Switch to CMake :^) 2020-05-14 20:15:18 +02:00
Module.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Multiboot.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Panic.cpp Kernel/Graphics + SystemServer: Support text mode properly 2021-05-16 19:58:33 +02:00
Panic.h Kernel/Graphics + SystemServer: Support text mode properly 2021-05-16 19:58:33 +02:00
PerformanceEventBuffer.cpp Kernel: Generate page fault events from the kernel profiler 2021-05-19 22:51:42 +02:00
PerformanceEventBuffer.h Kernel: Add support for profiling kmalloc()/kfree() 2021-05-19 22:51:42 +02:00
PerformanceManager.h Kernel: Generate page fault events from the kernel profiler 2021-05-19 22:51:42 +02:00
PhysicalAddress.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Process.cpp Kernel: Disable profile timer when the process exits 2021-05-17 21:53:04 +02:00
Process.h Kernel+LibC: Add support for filtering profiling events 2021-05-19 22:51:42 +02:00
ProcessGroup.cpp AK: Rename adopt() to adopt_ref() 2021-04-23 16:46:57 +02:00
ProcessGroup.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Random.cpp Kernel: Remove the now defunct LOCKER(..) macro. 2021-04-25 09:38:27 +02:00
Random.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
RTC.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
RTC.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Scheduler.cpp Kernel: Add support for profiling kmalloc()/kfree() 2021-05-19 22:51:42 +02:00
Scheduler.h Kernel: Add support for profiling kmalloc()/kfree() 2021-05-19 22:51:42 +02:00
SpinLock.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
StdLib.cpp Kernel: Enable building the kernel with -flto 2021-04-29 20:26:36 +02:00
StdLib.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
Syscall.cpp Kernel: Enable building the kernel with -flto 2021-04-29 20:26:36 +02:00
Thread.cpp AK+Kernel+LibELF: Remove the need for IteratorDecision::Continue 2021-05-16 10:36:52 +01:00
Thread.h Kernel: Generate page fault events from the kernel profiler 2021-05-19 22:51:42 +02:00
ThreadBlockers.cpp Kernel: Modify TimeManagement::current_time(..) API so it can't fail. (#6869) 2021-05-05 18:51:06 +02:00
ThreadTracer.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
ThreadTracer.h Kernel: Make Process::start_tracing_from API OOM safe 2021-05-13 16:21:53 +02:00
TimerQueue.cpp Kernel: Modify TimeManagement::current_time(..) API so it can't fail. (#6869) 2021-05-05 18:51:06 +02:00
TimerQueue.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
UBSanitizer.cpp Kernel: static vs non-static constexpr variables 2021-05-19 21:21:47 +01:00
UBSanitizer.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
UnixTypes.h Kernel: Generate page fault events from the kernel profiler 2021-05-19 22:51:42 +02:00
UnveilNode.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
UserOrKernelBuffer.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
UserOrKernelBuffer.h Kernel: Make UserOrKernelBuffer R/W helpers return KResultOr<size_t> 2021-05-13 23:28:40 +02:00
VirtualAddress.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
WaitQueue.cpp Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
WaitQueue.h Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
WorkQueue.cpp Kernel: Use plain Function objects for the WorkQueue 2021-05-19 21:36:57 +02:00
WorkQueue.h Kernel: Use plain Function objects for the WorkQueue 2021-05-19 21:36:57 +02:00