commit 5c14d498ff15f12ce219c1930b0e7cccff939240
author Ryo Hashimoto <hashimoto@google.com> Wed Mar 14 19:16:50 2018 +0900
committer Ryo Hashimoto <hashimoto@google.com> Thu Mar 15 14:20:49 2018 +0900
tree 5118d38137defc09807dcb40f40eebb914fbe43b
parent cb7b04a56efa5edb3ce6cea5818ea977fa806a4e

Change FUSE_MAX_WRITE's value to 128KB

In the kernel code, there is a constant FUSE_MAX_PAGES_PER_REQ which
limits the size of requests to 128KB.

Bug: 74725300
Test: atest android.os.storage.cts.StorageManagerTest
Change-Id: I6776a409ea68da946bb58e1a933f51c68cb1a99a

core/java/com/android/internal/os/FuseAppLoop.java

diff --git a/core/java/com/android/internal/os/FuseAppLoop.java b/core/java/com/android/internal/os/FuseAppLoop.java
index 12405eb..67fbe5e 100644
--- a/core/java/com/android/internal/os/FuseAppLoop.java
+++ b/core/java/com/android/internal/os/FuseAppLoop.java
@@ -138,7 +138,7 @@
     private static final int FUSE_FSYNC = 20;
 
     // Defined in FuseBuffer.h
-    private static final int FUSE_MAX_WRITE = 256 * 1024;
+    private static final int FUSE_MAX_WRITE = 128 * 1024;
 
     @Override
     public boolean handleMessage(Message msg) {