diff options
| author | Surbhi Palande <surbhi.palande@canonical.com> | 2009-12-08 11:44:34 +0200 |
|---|---|---|
| committer | John Rigby <john.rigby@linaro.org> | 2011-10-17 02:31:59 -0600 |
| commit | 7f4074e27ecec40fb463bea8b4b6e3ccdd763263 (patch) | |
| tree | f7700eb0d0eb80220e0c50fbfe4f4c9aa58e9f51 /include/linux | |
| parent | ddf8b8fcdba4a64932cdaffd41f1bde18d9d985c (diff) | |
UBUNTU: SAUCE: Make populate_rootfs asynchronous
The expansion of the initramfs is completely independant of other
boot activities. The original data is already present at boot and the
filesystem is not required until we are ready to start init. It is
therefore reasonable to populate the rootfs asynchronously. Move this
processing to an async call.
This reduces kernel initialisation time (the time from bootloader to
starting userspace) by several 10ths of a second on a selection of test
hardware particularly SMP systems, although UP system also benefit.
Signed-off-by: Surbhi Palande <surbhi.palande@canonical.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/init.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/init.h b/include/linux/init.h index 9146f39cddd..a2b5b8a97e0 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -222,6 +222,8 @@ extern int initcall_debug; static initcall_t __initcall_##fn \ __used __section(.security_initcall.init) = fn +extern struct list_head populate_rootfs_domain; + struct obs_kernel_param { const char *str; int (*setup_func)(char *); |