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Kernel: Disable big process lock for sys$dump_backtrace()

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This syscall only dumps the current thread's backtrace and as such
doesn't touch any shared intra-process resources.
This commit is contained in:
Idan Horowitz 2021-08-06 14:27:26 +03:00 • committed by Andreas Kling
parent da0b7d1737
commit 00818b8447
2 changed files with 2 additions and 2 deletions
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2
Kernel/API/Syscall.h
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@ -144,7 +144,7 @@ enum class NeedsBigProcessLock {
S(reboot, NeedsBigProcessLock::Yes) \ S(reboot, NeedsBigProcessLock::Yes) \
S(mount, NeedsBigProcessLock::Yes) \ S(mount, NeedsBigProcessLock::Yes) \
S(umount, NeedsBigProcessLock::Yes) \ S(umount, NeedsBigProcessLock::Yes) \
S(dump_backtrace, NeedsBigProcessLock::Yes) \ S(dump_backtrace, NeedsBigProcessLock::No) \
S(dbgputch, NeedsBigProcessLock::Yes) \ S(dbgputch, NeedsBigProcessLock::Yes) \
S(dbgputstr, NeedsBigProcessLock::Yes) \ S(dbgputstr, NeedsBigProcessLock::Yes) \
S(create_inode_watcher, NeedsBigProcessLock::Yes) \ S(create_inode_watcher, NeedsBigProcessLock::Yes) \

2
Kernel/Syscalls/debug.cpp
View file

@ -13,7 +13,7 @@ namespace Kernel {
KResultOr<FlatPtr> Process::sys$dump_backtrace() KResultOr<FlatPtr> Process::sys$dump_backtrace()
{ {
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this); VERIFY_NO_PROCESS_BIG_LOCK(this);
dump_backtrace(); dump_backtrace();
return 0; return 0;
} }