From bd5bdd875b29e882f80d2cd6dd1da468641dad2a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 14 Jul 2005 20:18:07 +0000 Subject: kbuild: "PREEMPT" in UTS_VERSION From: Matt Mackall Add PREEMPT to UTS_VERSION where enabled as is done for SMP to make preempt kernels easily identifiable. Added SMP PREEMPT as comment in compile.h to force it to be updated when they change (sam). Signed-off-by: Matt Mackall Signed-off-by: Sam Ravnborg --- init/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'init') diff --git a/init/Makefile b/init/Makefile index 93a53fbdbe79..a2300078f2b7 100644 --- a/init/Makefile +++ b/init/Makefile @@ -25,4 +25,5 @@ $(obj)/version.o: include/linux/compile.h include/linux/compile.h: FORCE @echo ' CHK $@' - @$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CC) $(CFLAGS)" + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ + "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(CFLAGS)" -- cgit v1.2.2 From f9f97bc014d7402cd2d135e20bcd25dfec93257b Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 20 Jul 2005 05:43:05 +0200 Subject: [PATCH] kallsyms: clarify KALLSYMS_ALL help text Clarify the KALLSYMS_ALL help text slightly. Signed-off-by: Jesper Juhl --- init/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index 75755ef50c89..abaaa7748dd1 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -260,8 +260,8 @@ config KALLSYMS_ALL help Normally kallsyms only contains the symbols of functions, for nicer OOPS messages. Some debuggers can use kallsyms for other - symbols too: say Y here to include all symbols, and you - don't care about adding 300k to the size of your kernel. + symbols too: say Y here to include all symbols, if you need them + and you don't care about adding 300k to the size of your kernel. Say N. -- cgit v1.2.2 From dbec486632d2303f5c0e75af7a8473fa4c4a145a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Wed, 10 Aug 2005 20:44:50 +0200 Subject: kconfig: move initramfs options to General Setup Move initramfs options from Device Drivers | Block Drivers to General Setup This is a more natural place for this option. Furthermore separate out intramfs options to usr/Kconfig Signed-off-by: Sam Ravnborg --- init/Kconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index abaaa7748dd1..eb86972be1c2 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -238,6 +238,8 @@ config CPUSETS Say N if unsure. +source "usr/Kconfig" + menuconfig EMBEDDED bool "Configure standard kernel features (for small systems)" help -- cgit v1.2.2 From aaebf4332018980fef4e601d1b5a6e52dd9e9ae4 Mon Sep 17 00:00:00 2001 From: Ryan Anderson Date: Sun, 31 Jul 2005 04:57:49 -0400 Subject: [PATCH] kbuild: automatically append a short string to the version based upon the git commit If CONFIG_AUTO_LOCALVERSION is set, the user is using a git-based tree, and the current HEAD is not referred to by any tags in .git/refs/tags/, append -g and the first 8 characters of the commit to the version string. This makes it easier to use git-bisect, and/or to do a daily build, without trampling on your older, working builds, or accidentally setting up conflicting sets of modules. Signed-off-by: Ryan Anderson Signed-off-by: Sam Ravnborg --- init/Kconfig | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index eb86972be1c2..f27fc48c1fdc 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -77,6 +77,22 @@ config LOCALVERSION object and source tree, in that order. Your total string can be a maximum of 64 characters. +config LOCALVERSION_AUTO + bool "Automatically append version information to the version string" + default y + help + This will try to automatically determine if the current tree is a + release tree by looking for git tags that + belong to the current top of tree revision. + + A string of the format -gxxxxxxxx will be added to the localversion + if a git based tree is found. The string generated by this will be + appended after any matching localversion* files, and after the value + set in CONFIG_LOCALVERSION + + Note: This requires Perl, and a git repository, but not necessarily + the git or cogito tools to be installed. + config SWAP bool "Support for paging of anonymous memory (swap)" depends on MMU -- cgit v1.2.2 From 20380731bc2897f2952ae055420972ded4cd786e Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 16 Aug 2005 02:18:02 -0300 Subject: [NET]: Fix sparse warnings Of this type, mostly: CHECK net/ipv6/netfilter.c net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static? net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static? Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- init/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'init') diff --git a/init/main.c b/init/main.c index c9c311cf1771..ff410063e4e1 100644 --- a/init/main.c +++ b/init/main.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include @@ -80,7 +81,6 @@ static int init(void *); extern void init_IRQ(void); -extern void sock_init(void); extern void fork_init(unsigned long); extern void mca_init(void); extern void sbus_init(void); -- cgit v1.2.2 From 13ae6d81b963c7b22ab9c158ee5a392fb57579fe Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Fri, 2 Sep 2005 09:03:09 +0200 Subject: [PATCH] remove driverfs references from init/do_mounts.c This patch is against 2.6.10, but still applies cleanly. It's just s/driverfs/sysfs/ in this file. Signed-off-by: Rolf Eike Beer Signed-off-by: Linus Torvalds --- init/do_mounts.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'init') diff --git a/init/do_mounts.c b/init/do_mounts.c index 4e11a9aaf14a..b27c11064409 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -127,10 +127,10 @@ fail: * used when disk name of partitioned disk ends on a digit. * * If name doesn't have fall into the categories above, we return 0. - * Driverfs is used to check if something is a disk name - it has + * Sysfs is used to check if something is a disk name - it has * all known disks under bus/block/devices. If the disk name - * contains slashes, name of driverfs node has them replaced with - * bangs. try_name() does the actual checks, assuming that driverfs + * contains slashes, name of sysfs node has them replaced with + * bangs. try_name() does the actual checks, assuming that sysfs * is mounted on rootfs /sys. */ -- cgit v1.2.2 From 8446f1d391f3d27e6bf9c43d4cbcdac0ca720417 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 6 Sep 2005 15:16:27 -0700 Subject: [PATCH] detect soft lockups This patch adds a new kernel debug feature: CONFIG_DETECT_SOFTLOCKUP. When enabled then per-CPU watchdog threads are started, which try to run once per second. If they get delayed for more than 10 seconds then a callback from the timer interrupt detects this condition and prints out a warning message and a stack dump (once per lockup incident). The feature is otherwise non-intrusive, it doesnt try to unlock the box in any way, it only gets the debug info out, automatically, and on all CPUs affected by the lockup. Signed-off-by: Ingo Molnar Signed-off-by: Nishanth Aravamudan Signed-Off-By: Matthias Urlichs Signed-off-by: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'init') diff --git a/init/main.c b/init/main.c index ff410063e4e1..a29fb2ac7240 100644 --- a/init/main.c +++ b/init/main.c @@ -614,6 +614,7 @@ static void do_pre_smp_initcalls(void) migration_init(); #endif spawn_ksoftirqd(); + spawn_softlockup_task(); } static void run_init_process(char *init_filename) -- cgit v1.2.2 From c1d7ef70a71eb54fb389a9a411d331661be73056 Mon Sep 17 00:00:00 2001 From: "Avery, Brian" Date: Tue, 6 Sep 2005 15:16:56 -0700 Subject: [PATCH] Add warning `init=' to init/main.c I passed init=/mylinuxrc to the kernel on the command line. The kernel silently dropped down to exec /sbin/init. It turned out that /mylinuxrc had improper permissions. Without any warning message from the kernel that something was wrong it took awhile to find the issue. The patch below adds a warning. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/main.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'init') diff --git a/init/main.c b/init/main.c index a29fb2ac7240..e4dbcbcd26cf 100644 --- a/init/main.c +++ b/init/main.c @@ -708,10 +708,11 @@ static int init(void * unused) * The Bourne shell can be used instead of init if we are * trying to recover a really broken machine. */ - - if (execute_command) + if (execute_command) { run_init_process(execute_command); - + printk(KERN_WARNING "Failed to execute %s. Attempting " + "defaults...\n", execute_command); + } run_init_process("/sbin/init"); run_init_process("/etc/init"); run_init_process("/bin/init"); -- cgit v1.2.2 From ffdfc40976dda18d923cd001d44bf0ee55da1af4 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Tue, 6 Sep 2005 15:17:19 -0700 Subject: [PATCH] Add rdinit parameter to pick early userspace init Since early userspace was added, there's no way to override which init to run from it. Some people tack on an extra cpio archive with a link from /init depending on what they want to run, but that's sometimes impractical. Changing the "init=" to also override the early userspace isn't feasible, since it is still used to indicate what init to run from disk when early userspace has completed doing whatever it's doing (i.e. load filesystem modules and drivers). Instead, introduce "rdinit=" and make it override the default "/init" if specified. Signed-off-by: Olof Johansson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/main.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) (limited to 'init') diff --git a/init/main.c b/init/main.c index e4dbcbcd26cf..f142d4035341 100644 --- a/init/main.c +++ b/init/main.c @@ -123,6 +123,7 @@ extern void softirq_init(void); char saved_command_line[COMMAND_LINE_SIZE]; static char *execute_command; +static char *ramdisk_execute_command; /* Setup configured maximum number of CPUs to activate */ static unsigned int max_cpus = NR_CPUS; @@ -297,6 +298,18 @@ static int __init init_setup(char *str) } __setup("init=", init_setup); +static int __init rdinit_setup(char *str) +{ + unsigned int i; + + ramdisk_execute_command = str; + /* See "auto" comment in init_setup */ + for (i = 1; i < MAX_INIT_ARGS; i++) + argv_init[i] = NULL; + return 1; +} +__setup("rdinit=", rdinit_setup); + extern void setup_arch(char **); #ifndef CONFIG_SMP @@ -681,10 +694,14 @@ static int init(void * unused) * check if there is an early userspace init. If yes, let it do all * the work */ - if (sys_access((const char __user *) "/init", 0) == 0) - execute_command = "/init"; - else + + if (!ramdisk_execute_command) + ramdisk_execute_command = "/init"; + + if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { + ramdisk_execute_command = NULL; prepare_namespace(); + } /* * Ok, we have completed the initial bootup, and @@ -701,7 +718,13 @@ static int init(void * unused) (void) sys_dup(0); (void) sys_dup(0); - + + if (ramdisk_execute_command) { + run_init_process(ramdisk_execute_command); + printk(KERN_WARNING "Failed to execute %s\n", + ramdisk_execute_command); + } + /* * We try each of these until one succeeds. * -- cgit v1.2.2