From 1e4f72fcbf6b82a3ccfea4df1d42b71ce28d7fe3 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Thu, 12 Feb 2009 10:21:54 +0000 Subject: linux-moblin: Add 2.6.28+2.6.29-rc2 version --- ...etry-mounting-the-root-fs-if-we-can-t-fin.patch | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 meta-moblin/packages/linux/linux-moblin-2.6.28+2.6.29-rc2/0001-fastboot-retry-mounting-the-root-fs-if-we-can-t-fin.patch (limited to 'meta-moblin/packages/linux/linux-moblin-2.6.28+2.6.29-rc2/0001-fastboot-retry-mounting-the-root-fs-if-we-can-t-fin.patch') diff --git a/meta-moblin/packages/linux/linux-moblin-2.6.28+2.6.29-rc2/0001-fastboot-retry-mounting-the-root-fs-if-we-can-t-fin.patch b/meta-moblin/packages/linux/linux-moblin-2.6.28+2.6.29-rc2/0001-fastboot-retry-mounting-the-root-fs-if-we-can-t-fin.patch new file mode 100644 index 000000000..8f34a0f3f --- /dev/null +++ b/meta-moblin/packages/linux/linux-moblin-2.6.28+2.6.29-rc2/0001-fastboot-retry-mounting-the-root-fs-if-we-can-t-fin.patch @@ -0,0 +1,61 @@ +From 0384d086e31092628596af98b1e33fad586cef0a Mon Sep 17 00:00:00 2001 +From: Arjan van de Ven +Date: Sun, 20 Jul 2008 13:01:28 -0700 +Subject: [PATCH] fastboot: retry mounting the root fs if we can't find init + +currently we wait until all device init is done before trying to mount +the root fs, and to consequently execute init. + +In preparation for relaxing the first delay, this patch adds a retry +attempt in case /sbin/init is not found. Before retrying, the code +will wait for all device init to complete. + +While this patch by itself doesn't gain boot time yet (it needs follow on +patches), the alternative already is to panic()... + +Signed-off-by: Arjan van de Ven +--- +--- a/init/main.c 2009-01-07 18:29:11.000000000 -0800 ++++ b/init/main.c 2009-01-07 18:32:08.000000000 -0800 +@@ -837,6 +837,7 @@ static void run_init_process(char *init_ + */ + static noinline int init_post(void) + { ++ int retry_count = 1; + /* need to finish all async __init code before freeing the memory */ + async_synchronize_full(); + free_initmem(); +@@ -859,6 +860,8 @@ static noinline int init_post(void) + ramdisk_execute_command); + } + ++retry: ++ + /* + * We try each of these until one succeeds. + * +@@ -871,6 +874,23 @@ static noinline int init_post(void) + "defaults...\n", execute_command); + } + run_init_process("/sbin/init"); ++ ++ if (retry_count > 0) { ++ retry_count--; ++ /* ++ * We haven't found init yet... potentially because the device ++ * is still being probed. We need to ++ * - flush keventd and friends ++ * - wait for the known devices to complete their probing ++ * - try to mount the root fs again ++ */ ++ flush_scheduled_work(); ++ while (driver_probe_done() != 0) ++ msleep(100); ++ prepare_namespace(); ++ goto retry; ++ } ++ + run_init_process("/etc/init"); + run_init_process("/bin/init"); + run_init_process("/bin/sh"); + -- cgit v1.2.3