4 files changed, 25 insertions, 31 deletions
diff --git a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs
index b04e8675..bfe13592 100644
--- a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs
+++ b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs
@@ -17,17 +17,17 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
         // Read() -> (u64 count, buffer<nn::fssrv::sf::IDirectoryEntry, 6, 0> entries)
         public ResultCode Read(ServiceCtx context)
         {
-            ulong bufferPosition = context.Request.ReceiveBuff[0].Position;
+            ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
             ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
-            byte[] entryBuffer = new byte[bufferLen];
-
-            Result result = _baseDirectory.Get.Read(out long entriesRead, new OutBuffer(entryBuffer));
+            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
+            {
+                Result result = _baseDirectory.Get.Read(out long entriesRead, new OutBuffer(region.Memory.Span));
 
-            context.Memory.Write(bufferPosition, entryBuffer);
-            context.ResponseData.Write(entriesRead);
+                context.ResponseData.Write(entriesRead);
 
-            return (ResultCode)result.Value;
+                return (ResultCode)result.Value;
+            }
         }
 
         [CommandHipc(1)]
diff --git a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs
index fa5e05d6..878fcacf 100644
--- a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs
+++ b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs
@@ -19,7 +19,8 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
         // Read(u32 readOption, u64 offset, u64 size) -> (u64 out_size, buffer<u8, 0x46, 0> out_buf)
         public ResultCode Read(ServiceCtx context)
         {
-            ulong position = context.Request.ReceiveBuff[0].Position;
+            ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
+            ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
             ReadOption readOption = context.RequestData.ReadStruct<ReadOption>();
             context.RequestData.BaseStream.Position += 4;
@@ -27,15 +28,14 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             long offset = context.RequestData.ReadInt64();
             long size   = context.RequestData.ReadInt64();
 
-            byte[] data = new byte[context.Request.ReceiveBuff[0].Size];
-
-            Result result = _baseFile.Get.Read(out long bytesRead, offset, new OutBuffer(data), size, readOption);
-
-            context.Memory.Write(position, data);
+            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
+            {
+                Result result = _baseFile.Get.Read(out long bytesRead, offset, new OutBuffer(region.Memory.Span), size, readOption);
 
-            context.ResponseData.Write(bytesRead);
+                context.ResponseData.Write(bytesRead);
 
-            return (ResultCode)result.Value;
+                return (ResultCode)result.Value;
+            }
         }
 
         [CommandHipc(1)]
diff --git a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFileSystem.cs b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFileSystem.cs
index a551d163..d68ef395 100644
--- a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFileSystem.cs
+++ b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFileSystem.cs
@@ -197,13 +197,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             context.ResponseData.Write(timestamp.Created);
             context.ResponseData.Write(timestamp.Modified);
             context.ResponseData.Write(timestamp.Accessed);
-
-            byte[] data = new byte[8];
-
-            // is valid?
-            data[0] = 1;
-
-            context.ResponseData.Write(data);
+            context.ResponseData.Write(1L); // Is valid?
 
             return (ResultCode)result.Value;
         }
diff --git a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IStorage.cs b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IStorage.cs
index 9dbfd2b0..5359cadd 100644
--- a/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IStorage.cs
+++ b/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IStorage.cs
@@ -23,21 +23,21 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
 
             if (context.Request.ReceiveBuff.Count > 0)
             {
-                IpcBuffDesc buffDesc = context.Request.ReceiveBuff[0];
+                ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
+                ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
                 // Use smaller length to avoid overflows.
-                if (size > buffDesc.Size)
+                if (size > bufferLen)
                 {
-                    size = buffDesc.Size;
+                    size = bufferLen;
                 }
 
-                byte[] data = new byte[size];
-
-                Result result = _baseStorage.Get.Read((long)offset, new OutBuffer(data), (long)size);
-
-                context.Memory.Write(buffDesc.Position, data);
+                using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
+                {
+                    Result result = _baseStorage.Get.Read((long)offset, new OutBuffer(region.Memory.Span), (long)size);
 
-                return (ResultCode)result.Value;
+                    return (ResultCode)result.Value;
+                }
             }
 
             return ResultCode.Success;