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1007 commits

Author SHA1 Message Date
Liav A
6b59311d4b Kernel: Change Ext2FS to be backed by a file instead of a block device 
This ensures that we can mount image files as virtual disks without the
need of implementing gross hacks like loopback devices :)
 2020-04-02 12:03:08 +02:00
Liav A
2f2016f51d Kernel: Remove unnecessary printf specifier 2020-04-02 12:03:08 +02:00
Andreas Kling
7d862dd5fc AK: Reduce header dependency graph of String.h 
String.h no longer pulls in StringView.h. We do this by moving a bunch
of String functions out-of-line.
 2020-03-23 13:48:44 +01:00
Shannon Booth
81adefef27 Kernel: Run clang-format on files 
Let's rip off the band-aid
 2020-03-22 01:22:32 +01:00
Alex Muscar
d013753f83
 		Kernel: Resolve relative paths when there is a veil (#1474) 2020-03-19 09:57:34 +01:00
marprok
3cbc2f4381 Ext2FS: Reset the found_a_group flag 2020-03-12 12:35:00 +01:00
Andreas Kling
3803196edb Kernel: Get rid of SmapDisabler in sys$fstat() 2020-03-10 13:34:24 +01:00
Andreas Kling
fa9fba6901 Kernel: Add missing #includes now that <AK/StdLibExtras.h> is smaller 2020-03-08 13:06:51 +01:00
Liav A
f3f8b88d8f Kernel: Fix syntax error in FIFO_DEBUG 2020-03-06 22:29:24 +01:00
Andreas Kling
c6693f9b3a Kernel: Simplify a bunch of dbg() and klog() calls 
LogStream can handle VirtualAddress and PhysicalAddress directly.
 2020-03-06 15:00:44 +01:00
Andreas Kling
75a6b27f73 Ext2FS: Remove unused allocate_block() 
We only use allocate_blocks() now. If you want a single block, you can
just call allocate_blocks() with a count of 1.
 2020-03-06 11:22:23 +01:00
Liav A
7ef5d222f1 Kernel: Change data in /proc/interrupts to be more richer 
Also, during interrupt handlers' enumeration, we call all interrupts
handlers that are not UnhandledInterruptHandler.
 2020-03-06 11:19:51 +01:00
Andreas Kling
8bb361889c AK: Remove Optional::operator bool() 
This was causing some obvious-in-hindsight but hard to spot bugs where
we'd implicitly convert the bool to an integer type and carry on with
the number 1 instead of the actual value().
 2020-03-06 10:32:58 +01:00
Liav A
f0ca29eb4b Kernel: Run clang-format on various files 2020-03-02 22:23:39 +01:00
Liav A
0fc60e41dd Kernel: Use klog() instead of kprintf() 
Also, duplicate data in dbg() and klog() calls were removed.
In addition, leakage of virtual address to kernel log is prevented.
This is done by replacing kprintf() calls to dbg() calls with the
leaked data instead.
Also, other kprintf() calls were replaced with klog().
 2020-03-02 22:23:39 +01:00
Andreas Kling
7cd1bdfd81 Kernel: Simplify some dbg() logging 
We don't have to log the process name/PID/TID, dbg() automatically adds
that as a prefix to every line.

Also we don't have to do .characters() on Strings passed to dbg() :^)
 2020-02-29 13:39:06 +01:00
Andreas Kling
5f7056d62c Kernel: Expose the VMObject type of each Region in /proc/PID/vm 2020-02-28 23:25:40 +01:00
Andreas Kling
8fbdda5a2d Kernel: Implement basic support for sys$mmap() with MAP_PRIVATE 
You can now mmap a file as private and writable, and the changes you
make will only be visible to you.

This works because internally a MAP_PRIVATE region is backed by a
unique PrivateInodeVMObject instead of using the globally shared
SharedInodeVMObject like we always did before. :^)

Fixes #1045.
 2020-02-28 23:25:00 +01:00
Andreas Kling
aa1e209845 Kernel: Remove some unnecessary indirection in InodeFile::mmap() 
InodeFile now directly calls Process::allocate_region_with_vmobject()
instead of taking an awkward detour via a special Region constructor.
 2020-02-28 20:29:14 +01:00
Andreas Kling
07a26aece3 Kernel: Rename InodeVMObject => SharedInodeVMObject 2020-02-28 20:07:51 +01:00
Liav A
b0d40e9495 Ext2Filesystem: Use dbg() instead of dbgprintf() 2020-02-27 13:05:12 +01:00
Liav A
67994cd87e ProcFS: Use dbg() instead of dbgprintf() 2020-02-27 13:05:12 +01:00
Liav A
03592a80fc FIFO: Use dbg() instead of dbgprintf() 2020-02-27 13:05:12 +01:00
Andreas Kling
d5fe839166 Kernel: Remove unused artifacts of the Custody cache 
We'll probably want some kind of Custody caching in the future, but as
it's not used at the moment, let's simplify things a bit.
 2020-02-26 15:25:53 +01:00
Andreas Kling
7f9a86b495 ProcFS: Expose the physical page map of each region in /proc/PID/vm 
You can now see the state of each underlying physical page slot in a
VM region.
 2020-02-25 23:06:40 +01:00
Andreas Kling
ceec1a7d38 AK: Make Vector use size_t for its size and capacity 2020-02-25 14:52:35 +01:00
Liav A
fe664965c2 Kernel: Change get_sharing_devices_count() in GenericInterruptHandler 
The new method' name is sharing_devices_count().
The Serenity Coding Style tends to not accept the word "get" in
methods' names if possible.
 2020-02-24 11:27:03 +01:00
Liav A
80eea6cd8b Kernel: Create an entry for viewing interrupts in ProcFS 2020-02-24 11:27:03 +01:00
Andreas Kling
0763f67043 AK: Make Bitmap use size_t for its size 
Also rework its API's to return Optional<size_t> instead of int with -1
as the error value.
 2020-02-24 09:56:07 +01:00
Andreas Kling
97e9deccf0 Ext2FS: Add Missing HashMap.h include 2020-02-22 16:37:51 +01:00
Andreas Kling
3e973bfe14 Kernel: Make FileDescription slab-allocated 2020-02-22 14:37:58 +01:00
Andreas Kling
6428669a37 Kernel: Make Custody slab-allocated 2020-02-22 14:33:51 +01:00
Andreas Kling
983b4bd9f2 Kernel+ProfileViewer: Move symbolication to userspace for time profiles 
This makes the time profiles look like the memory profiles so we can
use the userspace symbolication code in ProfileViewer.
 2020-02-22 10:09:54 +01:00
Andreas Kling
b6887bd9cd Ext2FS: The max current block count of a file is size/block_size 
Turns out that i_blocks does not take block list holes into account.
 2020-02-21 19:07:23 +01:00
Andreas Kling
59c052a72a Ext2FS: Allow holes in block lists 
Linux creates holes in block lists for all-zero content. This is very
reasonable and we can now handle that situation as well.

Note that we're not smart enough to generate these holes ourselves yet,
but now we can at least read from such files.
 2020-02-21 17:50:51 +01:00
Sergey Bugaev
1d2986ea15 Kernel: Fix a panic in VFS::rename() 
If we get an -ENOENT when resolving the target because of some part, that is not
the very last part, missing, we should just return the error instead of panicking
later :^)

To test:
    $ mkdir /tmp/foo/
    $ mv /tmp/foo/ /tmp/bar/

Related to https://github.com/SerenityOS/serenity/issues/1253
 2020-02-20 19:13:20 +01:00
Sergey Bugaev
3439498744 Kernel: Support trailing slashes in VFS::mkdir() 
This is apparently a special case unlike any other, so let's handle it
directly in VFS::mkdir() instead of adding an alternative code path into
VFS::resolve_path().

Fixes https://github.com/SerenityOS/serenity/issues/1253
 2020-02-20 19:13:20 +01:00
Andreas Kling
88b9fcb976 AK: Use size_t for ByteBuffer sizes 
This matches what we already do for string types.
 2020-02-20 13:20:34 +01:00
Andreas Kling
a7dbb3cf96 Kernel: Use a FixedArray for a process's extra GIDs 
There's not really enough of these to justify using a HashTable.
 2020-02-18 11:35:47 +01:00
Andreas Kling
48f7c28a5c Kernel: Replace "current" with Thread::current and Process::current 
Suggested by Sergey. The currently running Thread and Process are now
Thread::current and Process::current respectively. :^)
 2020-02-17 15:04:27 +01:00
Andreas Kling
635ae70b8f Kernel: More header dependency reduction work 2020-02-16 02:15:33 +01:00
Andreas Kling
16818322c5 Kernel: Reduce header dependencies of Process and Thread 2020-02-16 02:01:42 +01:00
Andreas Kling
e28809a996 Kernel: Add forward declaration header 2020-02-16 01:50:32 +01:00
Andreas Kling
a356e48150 Kernel: Move all code into the Kernel namespace 2020-02-16 01:27:42 +01:00
Andreas Kling
6cbd72f54f AK: Remove bitrotted Traits::dump() mechanism 
This was only used by HashTable::dump() which I used when doing the
first HashTable implementation. Removing this allows us to also remove
most includes of <AK/kstdio.h>.
 2020-02-10 11:55:34 +01:00
Liav A
99ea80695e Kernel: Use VirtualAddress & PhysicalAddress classes from LibBareMetal 2020-02-09 19:38:17 +01:00
Liav A
e559af2008 Kernel: Apply changes to use LibBareMetal definitions 2020-02-09 19:38:17 +01:00
Andreas Kling
deb154be61 Kernel: Send SIGPIPE to the current thread on write to a broken pipe 2020-02-08 19:12:06 +01:00
Andreas Kling
7291370478 Kernel: Make File::truncate() take a u64 
No point in taking a signed type here. We validate at the syscall layer
and then pass around a u64 from then on.
 2020-02-08 12:07:04 +01:00
Andreas Kling
42d41fdf94 Kernel: Simplify FS::create_inode() a little bit 
Return a KResultOr<NonnullRefPtr<Inode>> instead of returning errors in
an out-parameter.
 2020-02-08 11:58:28 +01:00