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ladybird/Kernel
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Andreas Kling dd58d0f650 Kernel: Uncommit a shared COW page when discovering it was unshared 
When we hit a COW fault and discover than no other process is sharing
the physical page, we simply remap it r/w and save ourselves the
trouble. When this happens, we can also give back (uncommit) one of our
shared committed COW pages, since we won't be needing it.

We had this optimization before, but I mistakenly removed it in
50472fd69f since I had misunderstood
it to be the reason for a panic.
2021-08-05 17:41:58 +02:00
..
ACPI
Kernel: Don't truncate physical address in ACPI table to 32 bits
2021-07-18 22:09:05 +02:00
API
Kernel+LibSystem: Add a 4th syscall argument
2021-07-25 14:08:50 +02:00
Arch
Kernel: Remove ThreadTracer.h include from Process.h / Thread.h
2021-08-01 08:10:16 +02:00
Bus
Kernel: Remove ContiguousVMObject, let AnonymousVMObject do the job
2021-07-25 18:44:47 +02:00
Devices
Kernel: Make NullDevice (/dev/null) seekable
2021-08-03 10:36:48 +02:00
FileSystem
Kernel: Handle OOM in DiskCache when mounting Ext2 filesystems
2021-08-03 18:54:23 +02:00
Graphics
Kernel: Remove unused header includes
2021-08-01 08:10:16 +02:00
Heap
Kernel+AK: Generate compile-time error for non-sized delete
2021-07-16 20:51:13 +02:00
Interrupts
Kernel: Remove unused header includes
2021-08-01 08:10:16 +02:00
Modules
…
Net
Kernel: Handle OOM when allocating Packet KBuffers
2021-08-03 18:54:23 +02:00
Prekernel
Prekernel: Disable KASAN, so it has no effect when enabled
2021-07-30 16:58:09 +02:00
Storage
Everywhere: Make use of container version of all_of
2021-08-03 10:46:43 +02:00
Syscalls
Kernel: Handle OOM from KBuffer creation in sys$module()
2021-08-03 18:54:23 +02:00
Tasks
Kernel: Make VirtualFileSystem::sync() static
2021-07-11 00:26:17 +02:00
Time
Kernel: Remove unused header includes
2021-08-01 08:10:16 +02:00
TTY
Kernel: Convert MasterPTY creation to use DoubleBuffer factory
2021-08-03 18:54:23 +02:00
VirtIO
Kernel: Fix inverted check in VirtIOConsolePort
2021-07-14 12:33:07 +02:00
VM
Kernel: Uncommit a shared COW page when discovering it was unshared
2021-08-05 17:41:58 +02:00
AddressSanitizer.cpp
…
AddressSanitizer.h
…
Assertions.h
AK+Kernel: Print TODO when a TODO() is executed
2021-08-04 11:01:16 +02:00
AtomicEdgeAction.h
Kernel: Add AtomicEdgeAction class
2021-07-07 21:57:01 +02:00
BootInfo.h
Kernel: Support loading the kernel at almost arbitrary virtual addresses
2021-07-27 13:15:16 +02:00
CMakeLists.txt
Kernel: Use our toolchain's c++filt tool for the kernel map
2021-07-29 10:38:31 +02:00
CMOS.cpp
…
CMOS.h
…
CommandLine.cpp
Kernel: Un-unmap-after-init CommandLine::boot_mode()
2021-07-26 11:33:14 +02:00
CommandLine.h
…
ConsoleDevice.cpp
Kernel: Move special sections into Sections.h
2021-06-24 00:38:23 +02:00
ConsoleDevice.h
Kernel: Make various T::class_name() and similar return StringView
2021-07-11 01:46:59 +02:00
CoreDump.cpp
Kernel: Rename VFS => VirtualFileSystem
2021-07-11 00:25:24 +02:00
CoreDump.h
Kernel: Use Forward.h headers more
2021-07-11 14:14:51 +02:00
Debug.h.in
…
DoubleBuffer.cpp
Kernel: Remove OOM unsafe DoubleBuffer constructor
2021-08-03 18:54:23 +02:00
DoubleBuffer.h
Kernel: Remove OOM unsafe DoubleBuffer constructor
2021-08-03 18:54:23 +02:00
embedmap.sh
Kernel: Make new kernel build process work on macOS
2021-07-15 11:04:30 +02:00
Forward.h
Kernel: Add MemoryManager to Forward.h
2021-08-05 17:41:58 +02:00
FutexQueue.cpp
Kernel: Fix futex race that could lead to thread waiting forever
2021-07-07 10:05:55 +02:00
FutexQueue.h
Kernel: Fix futex race that could lead to thread waiting forever
2021-07-07 10:05:55 +02:00
GlobalProcessExposed.cpp
Kernel: Expose link speed and duplex through /proc/net/adapters
2021-08-03 10:20:51 +02:00
init.cpp
Kernel: Mark the stack check guard as READONLY_AFTER_INIT
2021-07-27 14:50:10 +02:00
IO.h
Kernel: Specify I/O size for BMIDEChannel
2021-06-28 15:55:00 +02:00
KBuffer.h
Kernel: Remove OOM unsafe API KBuffer::create_with_size
2021-08-03 18:54:23 +02:00
KBufferBuilder.cpp
Kernel: Remove KBufferBuilder's can_expand restriction
2021-07-20 18:05:05 +02:00
KBufferBuilder.h
Kernel: Remove KBufferBuilder's can_expand restriction
2021-07-20 18:05:05 +02:00
KLexicalPath.cpp
Kernel: Make KLexicalPath::basename() more compliant
2021-07-11 14:10:58 +02:00
KLexicalPath.h
Kernel: Add KLexicalPath::try_join and use it
2021-07-07 15:32:17 +02:00
kprintf.cpp
Kernel: Remove unused header includes
2021-08-01 08:10:16 +02:00
KResult.h
AK+Kernel: Fix perfect forwarding constructors shadowing others
2021-07-08 10:11:00 +02:00
kstdio.h
Kernel: Add dbgputch() to kstdio.h
2021-06-24 10:29:09 +02:00
KString.cpp
Kernel: Allow passing null pointer to delete
2021-07-14 13:12:25 +02:00
KString.h
Kernel: Add formatter function for OwnPtr<KString>
2021-07-07 15:32:17 +02:00
KSyms.cpp
Kernel: Print panic backtrace to both the screen and serial
2021-08-04 20:14:54 +02:00
KSyms.h
Kernel: Print panic backtrace to both the screen and serial
2021-08-04 20:14:54 +02:00
linker.ld
Kernel: Support loading the kernel at almost arbitrary virtual addresses
2021-07-27 13:15:16 +02:00
LockMode.h
Kernel: Allow Lock to block from BlockCondition
2021-07-12 11:27:18 +02:00
MiniStdLib.cpp
Kernel: Introduce basic pre-kernel environment
2021-07-18 17:31:13 +02:00
mkmap.sh
Kernel: Use our toolchain's c++filt tool for the kernel map
2021-07-29 10:38:31 +02:00
Module.h
…
Multiboot.h
Prekernel: Export some multiboot parameters in our own BootInfo struct
2021-07-27 13:15:16 +02:00
Mutex.cpp
Kernel: Only include AK/SourceLocation.h if LOCK_DEBUG is enabled
2021-08-01 08:10:16 +02:00
Mutex.h
Kernel: Allow MutexLocker to be conditionally initialized
2021-07-20 03:21:14 +02:00
Panic.cpp
Kernel: Print panic backtrace to both the screen and serial
2021-08-04 20:14:54 +02:00
Panic.h
…
PerformanceEventBuffer.cpp
Kernel: Rename PerformanceEvent methods to be more ARCH independent
2021-07-19 08:46:55 +02:00
PerformanceEventBuffer.h
Kernel: Rename PerformanceEvent methods to be more ARCH independent
2021-07-19 08:46:55 +02:00
PerformanceManager.h
Kernel: Rename PerformanceEvent methods to be more ARCH independent
2021-07-19 08:46:55 +02:00
PhysicalAddress.h
Kernel: Move PhysicalPage classes out of the heap into an array
2021-07-08 11:43:34 +02:00
Process.cpp
Kernel: Remove ThreadTracer.h include from Process.h / Thread.h
2021-08-01 08:10:16 +02:00
Process.h
Kernel: Remove ThreadTracer.h include from Process.h / Thread.h
2021-08-01 08:10:16 +02:00
ProcessExposed.cpp
Kernel: Simplify ProcFS generated buffer caching
2021-07-20 18:05:05 +02:00
ProcessExposed.h
Kernel/ProcFS: Make various things superuser-only once again
2021-07-28 18:59:53 +02:00
ProcessGroup.cpp
Kernel: Standardize the header include style to 'include <Kernel/...>'
2021-07-11 21:37:38 +02:00
ProcessGroup.h
Kernel: Remove unused header includes
2021-08-01 08:10:16 +02:00
ProcessSpecificExposed.cpp
Kernel: Make purgeable memory a VMObject level concept (again)
2021-07-25 17:28:05 +02:00
Random.cpp
Kernel: Rename Locker => MutexLocker
2021-07-18 01:53:04 +02:00
Random.h
Kernel: Rename Lock to Mutex
2021-07-17 21:10:32 +02:00
RTC.cpp
Kernel: Ensure we read valid values from the RTC CMOS registers
2021-08-04 19:53:04 +02:00
RTC.h
Kernel: Ensure we read valid values from the RTC CMOS registers
2021-08-04 19:53:04 +02:00
SanCov.cpp
Kernel: Remove unused header includes
2021-08-01 08:10:16 +02:00
Scheduler.cpp
Kernel: Introduce ProcessorSpecific<T> for per-CPU data structures
2021-07-27 14:32:30 +02:00
Scheduler.h
Kernel: Remove unused Scheduler::yield_from_critical()
2021-07-26 00:39:10 +02:00
Sections.h
Kernel: Support loading the kernel at almost arbitrary virtual addresses
2021-07-27 13:15:16 +02:00
SpinLock.h
…
StdLib.cpp
Kernel: Introduce basic pre-kernel environment
2021-07-18 17:31:13 +02:00
StdLib.h
Everywhere: Fix incorrect usages of AK::Checked
2021-07-04 20:08:28 +01:00
Syscall.cpp
Kernel+LibSystem: Add a 4th syscall argument
2021-07-25 14:08:50 +02:00
Thread.cpp
Kernel: Add option to build with coverage instrumentation and KCOV
2021-07-26 17:40:28 +02:00
Thread.h
Kernel: Remove ThreadTracer.h include from Process.h / Thread.h
2021-08-01 08:10:16 +02:00
ThreadBlockers.cpp
Kernel: Fix bogus check in Thread::WaitBlockCondition::finalize()
2021-07-16 15:18:47 +02:00
ThreadTracer.cpp
Kernel: Remove unused header includes in root kernel tree
2021-07-11 21:37:38 +02:00
ThreadTracer.h
Everywhere: Use nothrow new with adopt_{ref,own}_if_nonnull
2021-06-24 17:35:49 +04:30
TimerQueue.cpp
Kernel: Do not cancel stale timers when servicing sys$alarm
2021-08-03 18:44:01 +02:00
TimerQueue.h
Kernel: Do not cancel stale timers when servicing sys$alarm
2021-08-03 18:44:01 +02:00
UBSanitizer.cpp
…
UnixTypes.h
Kernel+LibC: Add linger to sys/sockets.h
2021-07-29 19:35:03 +01:00
UnveilNode.h
…
UserOrKernelBuffer.cpp
Kernel: Add an API for turning a UserOrKernelBuffer into a KString
2021-07-17 22:07:49 +02:00
UserOrKernelBuffer.h
Kernel: Add an API for turning a UserOrKernelBuffer into a KString
2021-07-17 22:07:49 +02:00
VirtualAddress.h
Kernel: Make VirtualAddress::page_base() work with 64-bit addresses
2021-07-18 17:31:13 +02:00
WaitQueue.cpp
…
WaitQueue.h
…
WorkQueue.cpp
Kernel: Move special sections into Sections.h
2021-06-24 00:38:23 +02:00
WorkQueue.h
…