boot_time_opt: update host boot time optimization patches for 4.14

The new patches are based on:
https://github.com/clearlinux-pkgs/linux-lts
commit 5595fe425a52af6734235a1a953b6b03210060ec

Signed-off-by: Martin Borg <martin.borg@enea.com>
Signed-off-by: Adrian Dudau <adrian.dudau@enea.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/patches/boot_time_opt/0103-Increase-the-ext4-default-commit-age.patch b/patches/boot_time_opt/0103-Increase-the-ext4-default-commit-age.patch
new file mode 100644
index 0000000..bcfddee
--- /dev/null
+++ b/patches/boot_time_opt/0103-Increase-the-ext4-default-commit-age.patch
@@ -0,0 +1,35 @@
+From d098532daf5eead493d71f9756f8905a18f01e04 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 11 Jan 2016 10:01:44 -0600
+Subject: [PATCH 103/126] Increase the ext4 default commit age
+
+Both the VM and EXT4 have a "commit to disk after X seconds" time.
+Currently the EXT4 time is shorter than our VM time, which is a bit
+suboptional,
+it's better for performance to let the VM do the writeouts in bulk
+rather than something deep in the journalling layer.
+
+(DISTRO TWEAK -- NOT FOR UPSTREAM)
+
+Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
+Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
+---
+ include/linux/jbd2.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
+index 606b6bce3a5b..5dd7d54c40c2 100644
+--- a/include/linux/jbd2.h
++++ b/include/linux/jbd2.h
+@@ -47,7 +47,7 @@
+ /*
+  * The default maximum commit age, in seconds.
+  */
+-#define JBD2_DEFAULT_MAX_COMMIT_AGE 5
++#define JBD2_DEFAULT_MAX_COMMIT_AGE 30
+ 
+ #ifdef CONFIG_JBD2_DEBUG
+ /*
+-- 
+2.15.0
+