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40876 commits 1 branch 0 tags 230 MiB
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181 commits

Author SHA1 Message Date
James Bellamy
9c1ee8cbd1 Kernel: Remove big lock from sys$socket 
With the implementation of the credentials object the socket syscall no
longer needs the big lock.
 2022-08-23 20:29:50 +02:00
Andreas Kling
930dedfbd8 Kernel: Make sys$utime() and sys$utimensat() not take the big lock 2022-08-22 17:56:03 +02:00
Andreas Kling
35b2e9c663 Kernel: Make sys$mknod() not take the big lock 2022-08-22 17:56:03 +02:00
Andreas Kling
18abba2c4d Kernel: Make sys$getppid() not take the big lock 
This only needs to access the process PPID, which is protected by the
"protected data" lock.
 2022-08-21 13:29:36 +02:00
Andreas Kling
998c1152ef Kernel: Mark syscalls that get/set user/group ID as not needing big lock 
Now that these operate on the neatly atomic and immutable Credentials
object, they should no longer require the process big lock for
synchronization. :^)
 2022-08-20 18:36:47 +02:00
Samuel Bowman
b5a2f59320 Kernel: Make sys$unveil() not take the big process lock 
The unveil syscall uses the UnveilData struct which is already
SpinlockProtected, so there is no need to take the big lock.
 2022-08-18 00:04:31 +02:00
Andreas Kling
ce6e93d96b Kernel: Make sys$socketpair() not take the big lock 
This system call mainly accesses the file descriptor table, and this is
already guarded by MutexProtected.
 2022-08-16 20:43:23 +02:00
Andreas Kling
307932857e Kernel: Make sys$pipe() not take the big lock 
This system call mainly accesses the file descriptor table, and this is
already guarded by MutexProtected.
 2022-08-16 20:20:11 +02:00
Andreas Kling
e7d2696a56 Kernel: Shrink default userspace stack size from 4 MiB to 1 MiB 
This knocks 70 MiB off our idle footprint, (from 350 MiB to 280 MiB.)
 2022-08-15 17:18:11 +02:00
zzLinus
ca74443012 Kernel/LibC: Implement posix syscall clock_getres() 2022-07-25 15:33:50 +02:00
Hendiadyoin1
d783389877 Kernel+LibC: Add posix_fallocate syscall 2022-07-15 12:42:43 +02:00
Tim Schumacher
cf0ad3715e Kernel: Implement sigsuspend using a SignalBlocker 
`sigsuspend` was previously implemented using a poll on an empty set of
file descriptors. However, this broke quite a few assumptions in
`SelectBlocker`, as it verifies at least one file descriptor to be
ready after waking up and as it relies on being notified by the file
descriptor.

A bare-bones `sigsuspend` may also be implemented by relying on any of
the `sigwait` functions, but as `sigsuspend` features several (currently
unimplemented) restrictions on how returns work, it is a syscall on its
own.
 2022-07-08 22:27:38 +00:00
Ariel Don
9a6bd85924 Kernel+LibC+VFS: Implement utimensat(3) 
Create POSIX utimensat() library call and corresponding system call to
update file access and modification times.
 2022-05-21 18:15:00 +02:00
Patrick Meyer
0bd131ad06 Kernel: Stop requiring working malloc for syscall.h includes 
Fixes #13869
 2022-05-02 12:44:34 +02:00
Idan Horowitz
e84bbfed44 Kernel: Remove big lock from sys$mkdir 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
165a23b68c Kernel: Remove big lock from sys$rename 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
5c064d3e8e Kernel: Remove big lock from sys$rmdir 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
d4ce43cf45 Kernel: Remove big lock from sys$statvfs 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
4ae93179f1 Kernel: Remove big lock from sys$symlink 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
1474b18070 Kernel: Remove big lock from sys$link 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
fa360f7d88 Kernel: Remove big lock from sys$unlink 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
5a96260e25 Kernel: Remove big lock from sys$setsockopt 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
c2372242b1 Kernel: Remove big lock from sys$getsockopt 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
849c227f72 Kernel: Remove big lock from sys$shutdown 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
e620487b66 Kernel: Remove big lock from sys$connect 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
9547a8e8a2 Kernel: Remove big lock from sys$close 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
0297349922 Kernel: Remove big lock from sys$chown 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
8458313e8a Kernel: Remove big lock from sys$fchown 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Idan Horowitz
f986a3b886 Kernel: Remove big lock from sys$bind 
This syscall doesn't access any unprotected shared data.
 2022-04-09 23:46:02 +02:00
Luke Wilde
1682b0b6d8 Kernel: Remove big lock from sys$set_coredump_metadata 
The only requirement for this syscall is to make
Process::m_coredump_properties SpinlockProtected.
 2022-04-09 21:51:16 +02:00
Jelle Raaijmakers
cc411b328c Kernel: Remove big lock from sys$accept4 
The only thing we needed to check is whether `socket.accept()` returns
a socket, and if not, we go back to blocking again.
 2022-04-09 17:53:18 +02:00
Andreas Kling
12b612ab14 Kernel: Mark sys$adjtime() as not needing the big lock 
This syscall works on global kernel state and so doesn't need protection
from threads in the same process.
 2022-04-04 00:42:18 +02:00
Andreas Kling
4306422f29 Kernel: Mark sys$clock_settime() as not needing the big log 
This syscall ends up disabling interrupts while changing the time,
and the clock is a global resource anyway, so preventing threads in the
same process from running wouldn't solve anything.
 2022-04-04 00:42:18 +02:00
Andreas Kling
55814f6e0e Kernel: Mark sys$sched_{set,get}param() as not needing the big lock 
Both of these syscalls take the scheduler lock while accessing the
thread priority, so there's no reliance on the process big lock.
 2022-04-04 00:42:18 +02:00
Andreas Kling
36d829b97c Kernel: Mark sys$listen() as not needing the big lock 
This syscall already performs the necessary locking and so doesn't
need to rely on the process big lock.
 2022-04-03 22:22:22 +02:00
Andreas Kling
bc4282c773 Kernel: Mark sys$sendfd() and sys$recvfd() as not needing the big lock 
These syscalls already perform the necessary locking and don't rely on
the process big lock.
 2022-04-03 22:06:03 +02:00
Idan Horowitz
086969277e Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Liav A
b5ef900ccd Kernel: Don't assume paths of TTYs and pseudo terminals anymore 
The obsolete ttyname and ptsname syscalls are removed.
LibC doesn't rely on these anymore, and it helps simplifying the Kernel
in many places, so it's an overall an improvement.

In addition to that, /proc/PID/tty node is removed too as it is not
needed anymore by userspace to get the attached TTY of a process, as
/dev/tty (which is already a character device) represents that as well.
 2022-03-22 20:26:05 +01:00
Andreas Kling
7b3642d08c Kernel: Mark sys$lseek() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-09 16:43:00 +01:00
Andreas Kling
09e644f0ba Kernel: Mark sys$emuctl() as not needing the big lock 
This syscall doesn't do anything at all, and definitely doesn't need the
big lock. :^)
 2022-03-09 16:43:00 +01:00
Andreas Kling
b4fefedd1d Kernel: Mark sys$chmod() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-09 16:43:00 +01:00
Andreas Kling
aa381c4a67 Kernel: Mark sys$fchmod() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-09 16:43:00 +01:00
Andreas Kling
d074aae422 Kernel: Mark sys$dup2() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-09 16:43:00 +01:00
Andreas Kling
8aad9e7448 Kernel: Mark sys$ftruncate() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-09 16:43:00 +01:00
Andreas Kling
69a6a4d927 Kernel: Mark sys$fstatvfs() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-09 16:43:00 +01:00
Tim Schumacher
5200cdac43 Kernel: Remove an unused fd_set.h import 
The project appears to build just fine without it, and the explicit use
of `LibC` causes it to conflict with the system-wide `fd_set.h` when
building inside of Serenity.
 2022-03-08 16:18:48 -08:00
Andreas Kling
6354a9a030 Kernel: Mark sys$fsync() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-08 00:19:49 +01:00
Andreas Kling
ef45ff4703 Kernel: Mark sys$readlink() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-08 00:19:49 +01:00
Andreas Kling
2688ee28ff Kernel: Mark sys$stat() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-08 00:19:49 +01:00
Andreas Kling
be7ec52ed0 Kernel: Mark sys$fstat() as not needing the big lock 
This syscall doesn't access any data that was implicitly protected by
the big lock.
 2022-03-08 00:19:49 +01:00