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Kernel: Remove big lock from sys$chown
This syscall doesn't access any unprotected shared data.
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0297349922
Notes:
sideshowbarker
2024-07-17 14:13:51 +09:00
Author: https://github.com/IdanHo Commit: https://github.com/SerenityOS/serenity/commit/0297349922 Pull-request: https://github.com/SerenityOS/serenity/pull/13594
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@ -50,7 +50,7 @@ enum class NeedsBigProcessLock {
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S(bind, NeedsBigProcessLock::No) \
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S(chdir, NeedsBigProcessLock::No) \
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S(chmod, NeedsBigProcessLock::No) \
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S(chown, NeedsBigProcessLock::Yes) \
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S(chown, NeedsBigProcessLock::No) \
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S(clock_gettime, NeedsBigProcessLock::No) \
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S(clock_nanosleep, NeedsBigProcessLock::No) \
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S(clock_settime, NeedsBigProcessLock::No) \
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@ -22,7 +22,7 @@ ErrorOr<FlatPtr> Process::sys$fchown(int fd, UserID uid, GroupID gid)
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ErrorOr<FlatPtr> Process::sys$chown(Userspace<Syscall::SC_chown_params const*> user_params)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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VERIFY_NO_PROCESS_BIG_LOCK(this);
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TRY(require_promise(Pledge::chown));
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auto params = TRY(copy_typed_from_user(user_params));
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auto path = TRY(get_syscall_path_argument(params.path));
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