You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.3 KiB
45 lines
1.3 KiB
From 165af99c57a686444167fcef56f9fae31d815887 Mon Sep 17 00:00:00 2001 |
|
From: Lukas Czerner <lczerner@redhat.com> |
|
Date: Mon, 24 Feb 2014 18:41:06 +0100 |
|
Subject: [PATCH 4/8] mke2fs: Enable lazy_itable_init on newer kernel by |
|
default |
|
|
|
Currently is used did not specified lazy_itable_init option we rely on |
|
information from ext4 module exported via sysfs interface. However if |
|
the ext4 module is not loaded it will not be enabled even though kernel |
|
might support it. |
|
|
|
With this commit we set the default according to the kernel version, |
|
however we still allow it to be set manually via extended option or be |
|
enabled in case that ext4 module advertise that it supports this |
|
feature. |
|
|
|
Signed-off-by: Lukas Czerner <lczerner@redhat.com> |
|
--- |
|
misc/mke2fs.c | 10 +++++++++- |
|
1 file changed, 9 insertions(+), 1 deletion(-) |
|
|
|
diff --git a/misc/mke2fs.c b/misc/mke2fs.c |
|
index 76ea60b..23a988e 100644 |
|
--- a/misc/mke2fs.c |
|
+++ b/misc/mke2fs.c |
|
@@ -1998,7 +1998,15 @@ profile_error: |
|
blocksize, sys_page_size); |
|
} |
|
|
|
- lazy_itable_init = 0; |
|
+ /* |
|
+ * On newer kernels we do have lazy_itable_init support. So pick the |
|
+ * right default in case ext4 module is not loaded. |
|
+ */ |
|
+ if (is_before_linux_ver(2, 6, 37)) |
|
+ lazy_itable_init = 0; |
|
+ else |
|
+ lazy_itable_init = 1; |
|
+ |
|
if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) |
|
lazy_itable_init = 1; |
|
|
|
-- |
|
1.8.3.1 |
|
|
|
|