From be99ab3e33df4d33db7b96d0d52a27eba87b4507 Mon Sep 17 00:00:00 2001
From: Christopher Hoffman <choffman@redhat.com>
Date: Mon, 20 Oct 2025 18:33:17 +0000
Subject: [PATCH] test/client: When testing large io, consider fscrypt

When testing large io sizes and clamping that io, consider
fscrypt max io size. This max io size should be a multiple
of 4K (fscrypt block size), but not to exceed INT_MAX.

Signed-off-by: Christopher Hoffman <choffman@redhat.com>
---
 src/test/client/CMakeLists.txt |  1 +
 src/test/client/nonblocking.cc | 12 +++++++++---
 src/test/client/syncio.cc      | 10 ++++++++--
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/src/test/client/CMakeLists.txt b/src/test/client/CMakeLists.txt
index 00c0681f8b9c1..ed233fb887db5 100644
--- a/src/test/client/CMakeLists.txt
+++ b/src/test/client/CMakeLists.txt
@@ -26,6 +26,7 @@ if(${WITH_CEPHFS})
     ops.cc
     nonblocking.cc
     fscrypt_conf.cc
+    syncio.cc
     )
   target_link_libraries(ceph_test_client_fscrypt
     client
diff --git a/src/test/client/nonblocking.cc b/src/test/client/nonblocking.cc
index c232c2ffcc0c8..8a877c6b03b9f 100644
--- a/src/test/client/nonblocking.cc
+++ b/src/test/client/nonblocking.cc
@@ -777,15 +777,21 @@ TEST_F(TestClient, LlreadvLlwritevLargeBuffers) {
                                  nullptr);
   ASSERT_EQ(rc, 0);
   bytes_written = writefinish.wait();
+
+  int maxio_size = INT_MAX;
+  if (fse.encrypted) {
+    maxio_size = FSCRYPT_MAXIO_SIZE;
+  }
+
   // total write length is clamped to INT_MAX in write paths
-  ASSERT_EQ(bytes_written, INT_MAX);
+  ASSERT_EQ(bytes_written, maxio_size);
 
   rc = client->ll_preadv_pwritev(fh, iov_in, 2, 0, false, &readfinish, &bl);
   ASSERT_EQ(rc, 0);
   bytes_read = readfinish.wait();
   // total read length is clamped to INT_MAX in read paths
-  ASSERT_EQ(bytes_read, INT_MAX);
+  ASSERT_EQ(bytes_read, maxio_size);
 
   client->ll_release(fh);
   ASSERT_EQ(0, client->ll_unlink(root, filename, myperm));
-}
\ No newline at end of file
+}
diff --git a/src/test/client/syncio.cc b/src/test/client/syncio.cc
index 0eddc2ddae9ff..a82c7210dddd0 100644
--- a/src/test/client/syncio.cc
+++ b/src/test/client/syncio.cc
@@ -129,13 +129,19 @@ TEST_F(TestClient, LlreadvLlwritevLargeBuffersSync) {
     {in_buf_1.get(), BUFSIZE}
   };
 
+  int maxio_size = INT_MAX;
+  if (fse.encrypted) {
+    maxio_size = FSCRYPT_MAXIO_SIZE;
+  }
+
+
   rc = client->ll_writev(fh, iov_out, 2, 0);
   // total write length is clamped to INT_MAX in write paths
-  ASSERT_EQ(rc, INT_MAX);
+  ASSERT_EQ(rc, maxio_size);
 
   rc = client->ll_readv(fh, iov_in, 2, 0);
   // total write length is clamped to INT_MAX in write paths
-  ASSERT_EQ(rc, INT_MAX);
+  ASSERT_EQ(rc, maxio_size);
 
   client->ll_release(fh);
   ASSERT_EQ(0, client->ll_unlink(root, filename, myperm));
-- 
2.39.5