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1394 commits

Author SHA1 Message Date
Liav A
4f04cb98c1 Kernel/VFS: Silence mknod debug spam 
Since we populate the DevFS now in userspace, this creates a bunch of
unnecessary noise in the kernel log.
 2021-09-08 00:42:20 +02:00
Liav A
e0d712c6f7 Kernel+SystemServer: Defer creation of device nodes to userspace 
Don't create these device nodes in the Kernel, so we essentially enforce
userspace (SystemServer) to take control of this operation and to decide
how to create these device nodes.

This makes the DevFS to resemble linux devtmpfs, and allows us to remove
a bunch of unneeded overriding implementations of device name creation
in the Kernel.
 2021-09-08 00:42:20 +02:00
Liav A
fcc046047f Kernel/DevFS: Simplify nodes insertion and lookup 
Use IntrusiveList instead of a Vector to add inodes to a directory.
 2021-09-08 00:42:20 +02:00
Andreas Kling
049d846eb9 Kernel/TmpFS: Stop leaking directory entry metadata 
When creating and removing a child to a TmpFS directory, we were
forgetting to delete the TmpFSInode::Child struct.
 2021-09-07 22:16:25 +02:00
Andreas Kling
ec4b814c9a Kernel: Use OOM-safe absolute path serialization in InodeFile::mmap() 
Switch from OpenFileDescription::absolute_path() to the OOM-safe
try_serialize_absolute_path() (and propagate any errors to the caller.)
 2021-09-07 22:16:25 +02:00
Andreas Kling
300402cc14 Kernel: Make it possible for KBufferBuilder creation to fail 
This patch adds KBufferBuilder::try_create() and treats it like anything
else that can fail. And so, failure to allocate the initial internal
buffer of the builder will now propagate an ENOMEM to the caller. :^)
 2021-09-07 15:54:23 +02:00
Andreas Kling
899cee8185 Kernel: Make KBuffer::try_create_with_size() return KResultOr 
This allows us to use TRY() in a lot of new places.
 2021-09-07 15:15:08 +02:00
Andreas Kling
ed5d04b0ea Kernel: Use KResultOr and TRY() for FIFO 2021-09-07 13:58:16 +02:00
Andreas Kling
01993d0af3 Kernel: Make DoubleBuffer::try() return KResultOr 
This tidies up error propagation in a number of places.
 2021-09-07 13:53:14 +02:00
Andreas Kling
4a9c18afb9 Kernel: Rename FileDescription => OpenFileDescription 
Dr. POSIX really calls these "open file description", not just
"file description", so let's call them exactly that. :^)
 2021-09-07 13:53:14 +02:00
Andreas Kling
cae20d2aa9 Kernel: Add FileDescription::try_serialize_absolute_path() 
Unlike FileDescription::absolute_path(), this knows that failures can
happen and will propagate them to the caller.
 2021-09-07 13:53:14 +02:00
Andreas Kling
6ad427993a Everywhere: Behaviour => Behavior 2021-09-07 13:53:14 +02:00
Andreas Kling
55b0b06897 Kernel: Store process names as KString 2021-09-07 13:53:14 +02:00
Andreas Kling
b481132418 Kernel: Make UserOrKernelBuffer return KResult from read/write/memset 
This allows us to simplify a whole bunch of call sites with TRY(). :^)
 2021-09-07 13:53:14 +02:00
Andreas Kling
0d44cdb7a2 Kernel: Wrap two VirtualFileSystem directory traversals in TRY() 2021-09-06 20:30:18 +02:00
Andreas Kling
1101994fad Kernel: Wrap ISO9660FS directory traversal in TRY() 2021-09-06 20:28:40 +02:00
Andreas Kling
704a2bfad5 Kernel: Use TRY() in TmpFSInode::write_bytes() 2021-09-06 20:24:38 +02:00
Andreas Kling
56a2594de7 Kernel: Make KString factories return KResultOr + use TRY() everywhere 
There are a number of places that don't have an error propagation path
right now, so I've added FIXME's about that.
 2021-09-06 19:25:36 +02:00
Andreas Kling
2065ced8f6 Kernel: Make KBufferBuilder::append() & friends return KResult 
This allows callers to react to a failed append (due to OOM.)
 2021-09-06 18:56:51 +02:00
Andreas Kling
6e3381ac32 Kernel: Use KResultOr and TRY() for {Shared,Private}InodeVMObject 2021-09-06 13:06:05 +02:00
Andreas Kling
cda2b9e71c Kernel: Improvements to Custody absolute path serialization 
- Renamed try_create_absolute_path() => try_serialize_absolute_path()
- Use KResultOr and TRY() to propagate errors
- Don't call this when it's only for debug logging
 2021-09-06 13:06:05 +02:00
Andreas Kling
b083b165a7 Kernel/Ext2FS: Wrap calls to traverse_as_directory() in TRY() 
Nothing says we can't TRY() a multi-line function call. :^)
 2021-09-06 13:06:05 +02:00
Andreas Kling
18dbafec85 Kernel: Use TRY() more in Plan9FS 2021-09-06 13:06:05 +02:00
Andreas Kling
d34f2b643e Kernel: Tidy up Plan9FS construction a bit 2021-09-06 13:06:05 +02:00
Andreas Kling
36725228fa Kernel: Tidy up Ext2FS construction a bit 2021-09-06 13:06:05 +02:00
Andreas Kling
47bfbe343b Kernel: Tidy up SysFS construction 
- Use KResultOr and TRY() to propagate errors
- Check for OOM errors
- Move allocation out of constructors

There's still a lot more to do here, as SysFS is still quite brittle
in the face of memory pressure.
 2021-09-06 13:06:05 +02:00
Andreas Kling
788b91a65c Kernel: Tidy up DevFS construction and handle OOM errorso 
- Use KResultOr and TRY() to propagate errors
- Check for OOM
- Move allocations out of the DevFS constructor
 2021-09-06 13:06:05 +02:00
Andreas Kling
efe4e230ee Kernel: Tidy up DevPtsFS construction and handle OOM errors 
- Use KResultOr and TRY() to propagate errors
- Check for OOM when creating new inodes
 2021-09-06 13:06:05 +02:00
Andreas Kling
a8516681b7 Kernel: Tidy up TmpFS and TmpFSInode construction 
- Use KResultOr<NonnullRefPtr<T>>
- Propagate errors
- Use TRY() at call sites
 2021-09-06 02:36:21 +02:00
Andreas Kling
7a8061ba0c Kernel: Use TRY() in ISO9660FileSystem 2021-09-06 02:06:49 +02:00
Andreas Kling
540d62d3b2 Kernel: Simplify WatchDescription::create() 2021-09-06 01:55:27 +02:00
Andreas Kling
8ceff65161 Kernel: Use TRY() some more in FileDescription 2021-09-06 01:55:27 +02:00
Andreas Kling
5516592748 Kernel: Use TRY() in BlockBasedFileSystem 2021-09-06 01:55:27 +02:00
Ali Mohammad Pur
97e97bccab Everywhere: Make ByteBuffer::{create_*,copy}() OOM-safe 2021-09-06 01:53:26 +02:00
Brian Gianforcaro
bb58a4d943 Kernel: Make all Spinlocks use u8 for storage, remove template 
The default template argument is only used in one place, and it
looks like it was probably just an oversight. The rest of the Kernel
code all uses u8 as the type. So lets make that the default and remove
the unused template argument, as there doesn't seem to be a reason to
allow the size to be customizable.
 2021-09-05 20:46:02 +02:00
Andreas Kling
100b3835f0 Kernel: Use TRY() in DevFSLinkInode::write_bytes() 2021-09-05 19:02:57 +02:00
Andreas Kling
667a39df6b Kernel: Use TRY() in ProcFS 2021-09-05 19:01:38 +02:00
Andreas Kling
caaeae9607 Kernel: Make FileSystem::get_inode() return KResultOr<NRP<Inode>> 
This allows for natural error propagation in a bunch of new places.
 2021-09-05 18:55:55 +02:00
Andreas Kling
48a0b31c47 Kernel: Make copy_{from,to}_user() return KResult and use TRY() 
This makes EFAULT propagation flow much more naturally. :^)
 2021-09-05 17:38:37 +02:00
Andreas Kling
abb43468dc Kernel: Use TRY() in FileDescription::attach() 2021-09-05 16:25:40 +02:00
Andreas Kling
b2950c67ea Kernel: Use TRY() in Inode 2021-09-05 16:25:40 +02:00
Andreas Kling
c1c774da91 Kernel: Use TRY() in FIFO 2021-09-05 16:25:40 +02:00
Andreas Kling
cad78f5904 Kernel: Use TRY() in InodeFile 2021-09-05 16:25:40 +02:00
Andreas Kling
865eb54f75 Kernel/Ext2FS: Use TRY() in the Ext2FS 
This class was just *full* of great opportunities for TRY(). :^)
 2021-09-05 15:30:15 +02:00
Andreas Kling
0cf65cf7ec Kernel: Use TRY() even more in VirtualFileSystem 
Allowing TRY() with KResult unlocked a whole lot more opportunities.
 2021-09-05 14:55:51 +02:00
Andreas Kling
71187d865e Kernel: Tidy up VirtualFileSystem::mount_root() a little bit 
- Return KResult instead of bool
- Use TRY()
 2021-09-05 14:46:44 +02:00
Andreas Kling
b0f2acbd91 Kernel: Use TRY() in FileDescription 2021-09-05 14:43:51 +02:00
Andreas Kling
4012099338 Kernel: Tidy up AnonymousFile construction a bit 
- Rename create() => try_create()
- Use adopt_nonnull_ref_or_enomem()
 2021-09-05 14:33:25 +02:00
Andreas Kling
a5e71debef Kernel: Use TRY() in VirtualFileSystem 2021-09-05 14:08:12 +02:00
sin-ack
566c5d1e99 AK+Kernel: Move KResult.h to Kernel/API for userspace access 
This commit moves the KResult and KResultOr objects to Kernel/API to
signify that they may now be freely used by userspace code at points
where a syscall-related error result is to be expected. It also exposes
KResult and KResultOr to the global namespace to make it nicer to use
for userspace code.
 2021-09-05 12:54:48 +02:00