ceph-fuse: enable the big writes as default

When the libfuse version < 3, without the big_writes options enabled
the write perf is very poor.

Fixes: https://tracker.ceph.com/issues/44885
Signed-off-by: Xiubo Li <xiubli@redhat.com>
(cherry picked from commit 1c3dd60f217129f6ed718ca40098994a12259262)

diff --git a/src/common/options.cc b/src/common/options.cc
index 085fdf456df253000a278bb791ee2d296e4800a9..e490cb3703a1c8d0f5b178209f1d9efc0a2f0687 100644 (file)
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -8364,7 +8364,7 @@ std::vector<Option> get_mds_client_options() {
     .set_flag(Option::FLAG_STARTUP),
 
     Option("fuse_big_writes", Option::TYPE_BOOL, Option::LEVEL_ADVANCED)
-    .set_default(false)
+    .set_default(true)
     .set_description("big_writes is deprecated in libfuse 3.0.0"),
 
     Option("fuse_max_write", Option::TYPE_SIZE, Option::LEVEL_ADVANCED)