Kernel: Don't copy a Vector<FileDescriptionAndFlags>

Instead of copying a Vector everytime we need to enumerate a Process' file descriptions, we can just temporarily lock so it won't change.
Author: https://github.com/supercomputer7 Commit: 7c87891c06 Pull-request: https://github.com/SerenityOS/serenity/pull/7509 Reviewed-by: https://github.com/BertalanD Reviewed-by: https://github.com/awesomekling
2025-07-28 19:59:17 +00:00 · 2021-06-22 21:22:17 +03:00 · 2021-06-22 21:22:17 +03:00 · 7c87891c06 · 2024-07-18 11:16:32 +09:00
commit 7c87891c06
parent 12b6e69150
28 changed files with 198 additions and 128 deletions
--- a/Kernel/Syscalls/mmap.cpp
+++ b/Kernel/Syscalls/mmap.cpp
@ -224,7 +224,7 @@ KResultOr<FlatPtr> Process::sys$mmap(Userspace<const Syscall::SC_mmap_params*> u
            return EINVAL;
        if (static_cast<size_t>(offset) & ~PAGE_MASK)
            return EINVAL;
-        auto description = file_description(fd);
+        auto description = fds().file_description(fd);
        if (!description)
            return EBADF;
        if (description->is_directory())