Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Signed-off-by: Steve French <sfrench@us.ibm.com>

4 files changed, 67 insertions, 56 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 9fc0759f..25f4d74 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -105,7 +105,6 @@ config SWAP
 
 config SYSVIPC
 	bool "System V IPC"
-	depends on MMU
 	---help---
 	  Inter Process Communication is a suite of library functions and
 	  system calls which let processes (running programs) synchronize and
@@ -190,40 +189,13 @@ config AUDIT
 
 config AUDITSYSCALL
 	bool "Enable system-call auditing support"
-	depends on AUDIT && (X86 || PPC || PPC64 || ARCH_S390 || IA64 || UML || SPARC64)
+	depends on AUDIT && (X86 || PPC || PPC64 || S390 || IA64 || UML || SPARC64)
 	default y if SECURITY_SELINUX
 	help
 	  Enable low-overhead system-call auditing infrastructure that
 	  can be used independently or with another kernel subsystem,
 	  such as SELinux.
 
-config HOTPLUG
-	bool "Support for hot-pluggable devices" if !ARCH_S390
-	default ARCH_S390
-	help
-	  This option is provided for the case where no in-kernel-tree
-	  modules require HOTPLUG functionality, but a module built
-	  outside the kernel tree does. Such modules require Y here.
-
-config KOBJECT_UEVENT
-	bool "Kernel Userspace Events" if EMBEDDED
-	depends on NET
-	default y
-	help
-	  This option enables the kernel userspace event layer, which is a
-	  simple mechanism for kernel-to-user communication over a netlink
-	  socket.
-	  The goal of the kernel userspace events layer is to provide a simple
-	  and efficient events system, that notifies userspace about kobject
-	  state changes. This will enable applications to just listen for
-	  events instead of polling system devices and files.
-	  Hotplug events (kobject addition and removal) are also available on
-	  the netlink socket in addition to the execution of /sbin/hotplug if
-	  CONFIG_HOTPLUG is enabled.
-
-	  Say Y, unless you are building a system requiring minimal memory
-	  consumption.
-
 config IKCONFIG
 	bool "Kernel .config support"
 	---help---
@@ -256,6 +228,23 @@ config CPUSETS
 
 source "usr/Kconfig"
 
+config UID16
+	bool "Enable 16-bit UID system calls" if EMBEDDED
+	depends on ARM || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && SPARC32_COMPAT) || UML || (X86_64 && IA32_EMULATION)
+	default y
+	help
+	  This enables the legacy 16-bit UID syscall wrappers.
+
+config VM86
+	depends X86
+	default y
+	bool "Enable VM86 support" if EMBEDDED
+	help
+          This option is required by programs like DOSEMU to run 16-bit legacy
+	  code on X86 processors. It also may be needed by software like
+          XFree86 to initialize some video cards via BIOS. Disabling this
+          option saves about 6k.
+
 config CC_OPTIMIZE_FOR_SIZE
 	bool "Optimize for size (Look out for broken compilers!)"
 	default y
@@ -308,6 +297,15 @@ config KALLSYMS_EXTRA_PASS
 	   you wait for kallsyms to be fixed.
 
 
+config HOTPLUG
+	bool "Support for hot-pluggable devices" if EMBEDDED
+	default y
+	help
+	  This option is provided for the case where no hotplug or uevent
+	  capabilities is wanted by the kernel.  You should only consider
+	  disabling this option for embedded systems that do not use modules, a
+	  dynamic /dev tree, or dynamic device discovery.  Just say Y.
+
 config PRINTK
 	default y
 	bool "Enable support for printk" if EMBEDDED
@@ -328,6 +326,12 @@ config BUG
           option for embedded systems with no facilities for reporting errors.
           Just say Y.
 
+config ELF_CORE
+	default y
+	bool "Enable ELF core dumps" if EMBEDDED
+	help
+	  Enable support for generating core dumps. Disabling saves about 4k.
+
 config BASE_FULL
 	default y
 	bool "Enable full-sized data structures for core" if EMBEDDED
@@ -399,6 +403,15 @@ config CC_ALIGN_JUMPS
 	  no dummy operations need be executed.
 	  Zero means use compiler's default.
 
+config SLAB
+	default y
+	bool "Use full SLAB allocator" if EMBEDDED
+	help
+	  Disabling this replaces the advanced SLAB allocator and
+	  kmalloc support with the drastically simpler SLOB allocator.
+	  SLOB is more space efficient but does not scale well and is
+	  more susceptible to fragmentation.
+
 endmenu		# General setup
 
 config TINY_SHMEM
@@ -410,6 +423,10 @@ config BASE_SMALL
 	default 0 if BASE_FULL
 	default 1 if !BASE_FULL
 
+config SLOB
+	default !SLAB
+	bool
+
 menu "Loadable module support"
 
 config MODULES
@@ -461,8 +478,8 @@ config OBSOLETE_MODPARM
 	  If unsure, say Y.
 
 config MODVERSIONS
-	bool "Module versioning support (EXPERIMENTAL)"
-	depends on MODULES && EXPERIMENTAL
+	bool "Module versioning support"
+	depends on MODULES
 	help
 	  Usually, you have to use modules compiled with your kernel.
 	  Saying Y here makes it sometimes possible to use modules
diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index 3fbc355..f6f3680 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -17,7 +17,7 @@ static int __initdata raid_noautodetect, raid_autopart;
 static struct {
 	int minor;
 	int partitioned;
-	int pers;
+	int level;
 	int chunk;
 	char *device_names;
 } md_setup_args[MAX_MD_DEVS] __initdata;
@@ -47,7 +47,7 @@ extern int mdp_major;
  */
 static int __init md_setup(char *str)
 {
-	int minor, level, factor, fault, pers, partitioned = 0;
+	int minor, level, factor, fault, partitioned = 0;
 	char *pername = "";
 	char *str1;
 	int ent;
@@ -78,7 +78,7 @@ static int __init md_setup(char *str)
 	}
 	if (ent >= md_setup_ents)
 		md_setup_ents++;
-	switch (get_option(&str, &level)) {	/* RAID Personality */
+	switch (get_option(&str, &level)) {	/* RAID level */
 	case 2: /* could be 0 or -1.. */
 		if (level == 0 || level == LEVEL_LINEAR) {
 			if (get_option(&str, &factor) != 2 ||	/* Chunk Size */
@@ -86,16 +86,12 @@ static int __init md_setup(char *str)
 				printk(KERN_WARNING "md: Too few arguments supplied to md=.\n");
 				return 0;
 			}
-			md_setup_args[ent].pers = level;
+			md_setup_args[ent].level = level;
 			md_setup_args[ent].chunk = 1 << (factor+12);
-			if (level ==  LEVEL_LINEAR) {
-				pers = LINEAR;
+			if (level ==  LEVEL_LINEAR)
 				pername = "linear";
-			} else {
-				pers = RAID0;
+			else
 				pername = "raid0";
-			}
-			md_setup_args[ent].pers = pers;
 			break;
 		}
 		/* FALL THROUGH */
@@ -103,7 +99,7 @@ static int __init md_setup(char *str)
 		str = str1;
 		/* FALL THROUGH */
 	case 0:
-		md_setup_args[ent].pers = 0;
+		md_setup_args[ent].level = LEVEL_NONE;
 		pername="super-block";
 	}
 
@@ -190,10 +186,10 @@ static void __init md_setup_drive(void)
 			continue;
 		}
 
-		if (md_setup_args[ent].pers) {
+		if (md_setup_args[ent].level != LEVEL_NONE) {
 			/* non-persistent */
 			mdu_array_info_t ainfo;
-			ainfo.level = pers_to_level(md_setup_args[ent].pers);
+			ainfo.level = md_setup_args[ent].level;
 			ainfo.size = 0;
 			ainfo.nr_disks =0;
 			ainfo.raid_disks =0;
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index c10b08a..c2683fc 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -145,7 +145,7 @@ int __init rd_load_image(char *from)
 	int nblocks, i, disk;
 	char *buf = NULL;
 	unsigned short rotate = 0;
-#if !defined(CONFIG_ARCH_S390) && !defined(CONFIG_PPC_ISERIES)
+#if !defined(CONFIG_S390) && !defined(CONFIG_PPC_ISERIES)
 	char rotator[4] = { '|' , '/' , '-' , '\\' };
 #endif
 
@@ -237,7 +237,7 @@ int __init rd_load_image(char *from)
 		}
 		sys_read(in_fd, buf, BLOCK_SIZE);
 		sys_write(out_fd, buf, BLOCK_SIZE);
-#if !defined(CONFIG_ARCH_S390) && !defined(CONFIG_PPC_ISERIES)
+#if !defined(CONFIG_S390) && !defined(CONFIG_PPC_ISERIES)
 		if (!(i % 16)) {
 			printk("%c\b", rotator[rotate & 0x3]);
 			rotate++;
diff --git a/init/main.c b/init/main.c
index 27f97f9..e092b19 100644
--- a/init/main.c
+++ b/init/main.c
@@ -47,22 +47,17 @@
 #include <linux/rmap.h>
 #include <linux/mempolicy.h>
 #include <linux/key.h>
-#include <net/sock.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
 #include <asm/setup.h>
 #include <asm/sections.h>
+#include <asm/cacheflush.h>
 
 /*
  * This is one of the first .c files built. Error out early
  * if we have compiler trouble..
  */
-#if __GNUC__ == 2 && __GNUC_MINOR__ == 96
-#ifdef CONFIG_FRAME_POINTER
-#error This compiler cannot compile correctly with frame pointers enabled
-#endif
-#endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
 #include <asm/smp.h>
@@ -74,7 +69,7 @@
  * To avoid associated bogus bug reports, we flatly refuse to compile
  * with a gcc that is known to be too old from the very beginning.
  */
-#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 95)
+#if (__GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 2)
 #error Sorry, your GCC is too old. It builds incorrect kernels.
 #endif
 
@@ -100,6 +95,9 @@ extern void acpi_early_init(void);
 #else
 static inline void acpi_early_init(void) { }
 #endif
+#ifndef CONFIG_DEBUG_RODATA
+static inline void mark_rodata_ro(void) { }
+#endif
 
 #ifdef CONFIG_TC
 extern void tc_init(void);
@@ -487,6 +485,7 @@ asmlinkage void __init start_kernel(void)
 	init_IRQ();
 	pidhash_init();
 	init_timers();
+	hrtimers_init();
 	softirq_init();
 	time_init();
 
@@ -509,6 +508,7 @@ asmlinkage void __init start_kernel(void)
 	}
 #endif
 	vfs_caches_init_early();
+	cpuset_init_early();
 	mem_init();
 	kmem_cache_init();
 	setup_per_cpu_pageset();
@@ -614,9 +614,6 @@ static void __init do_basic_setup(void)
 	sysctl_init();
 #endif
 
-	/* Networking initialization needs a process context */ 
-	sock_init();
-
 	do_initcalls();
 }
 
@@ -712,6 +709,7 @@ static int init(void * unused)
 	 */
 	free_initmem();
 	unlock_kernel();
+	mark_rodata_ro();
 	system_state = SYSTEM_RUNNING;
 	numa_default_policy();