RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-28 12:55:09 +00:00
Code Issues Activity Actions

Reduce kmalloc() traffic in directory iteration.

Browse source 
Pass the file name in a stack-allocated buffer instead of using an AK::String
when iterating directories. This dramatically reduces the amount of cycles
spent traversing the filesystem.
This commit is contained in:
Andreas Kling 2018-11-13 00:17:30 +01:00
parent 5e8e554f94
commit 19b9401487
10 changed files with 60 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

5
VirtualFileSystem/FileSystem.h
View file

@ -35,7 +35,10 @@ public:
virtual Unix::ssize_t readInodeBytes(InodeIdentifier, Unix::off_t offset, Unix::size_t count, byte* buffer, FileDescriptor*) const = 0;
struct DirectoryEntry {
String name;
DirectoryEntry(const char* name, InodeIdentifier, byte fileType);
DirectoryEntry(const char* name, Unix::size_t name_length, InodeIdentifier, byte fileType);
char name[256];
Unix::size_t name_length { 0 };
InodeIdentifier inode;
byte fileType { 0 };
};