diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 117 | ||||
| -rw-r--r-- | init/do_mounts.c | 16 | ||||
| -rw-r--r-- | init/do_mounts_md.c | 2 | ||||
| -rw-r--r-- | init/do_mounts_rd.c | 4 | ||||
| -rw-r--r-- | init/initramfs.c | 14 | ||||
| -rw-r--r-- | init/noinitramfs.c | 6 |
6 files changed, 77 insertions, 82 deletions
diff --git a/init/Kconfig b/init/Kconfig index 3ae8ffe738eb..88c10468db46 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -518,7 +518,6 @@ if CGROUPS config CGROUP_DEBUG bool "Example debug cgroup subsystem" - depends on CGROUPS default n help This option enables a simple cgroup subsystem that @@ -529,7 +528,6 @@ config CGROUP_DEBUG config CGROUP_NS bool "Namespace cgroup subsystem" - depends on CGROUPS help Provides a simple namespace cgroup subsystem to provide hierarchical naming of sets of namespaces, @@ -538,21 +536,18 @@ config CGROUP_NS config CGROUP_FREEZER bool "Freezer cgroup subsystem" - depends on CGROUPS help Provides a way to freeze and unfreeze all tasks in a cgroup. config CGROUP_DEVICE bool "Device controller for cgroups" - depends on CGROUPS && EXPERIMENTAL help Provides a cgroup implementing whitelists for devices which a process in the cgroup can mknod or open. config CPUSETS bool "Cpuset support" - depends on CGROUPS help This option will let you create and manage CPUSETs which allow dynamically partitioning a system into sets of CPUs and @@ -568,7 +563,6 @@ config PROC_PID_CPUSET config CGROUP_CPUACCT bool "Simple CPU accounting cgroup subsystem" - depends on CGROUPS help Provides a simple Resource Controller for monitoring the total CPU consumed by the tasks in a cgroup. @@ -578,11 +572,10 @@ config RESOURCE_COUNTERS help This option enables controller independent resource accounting infrastructure that works with cgroups. - depends on CGROUPS config CGROUP_MEM_RES_CTLR bool "Memory Resource Controller for Control Groups" - depends on CGROUPS && RESOURCE_COUNTERS + depends on RESOURCE_COUNTERS select MM_OWNER help Provides a memory resource controller that manages both anonymous @@ -623,7 +616,7 @@ config CGROUP_MEM_RES_CTLR_SWAP menuconfig CGROUP_SCHED bool "Group CPU scheduler" - depends on EXPERIMENTAL && CGROUPS + depends on EXPERIMENTAL default n help This feature lets CPU scheduler recognize task groups and control CPU @@ -652,7 +645,7 @@ endif #CGROUP_SCHED config BLK_CGROUP tristate "Block IO controller" - depends on CGROUPS && BLOCK + depends on BLOCK default n ---help--- Generic block IO controller cgroup interface. This is the common @@ -682,6 +675,59 @@ config DEBUG_BLK_CGROUP endif # CGROUPS +menuconfig NAMESPACES + bool "Namespaces support" if EMBEDDED + default !EMBEDDED + help + Provides the way to make tasks work with different objects using + the same id. For example same IPC id may refer to different objects + or same user id or pid may refer to different tasks when used in + different namespaces. + +if NAMESPACES + +config UTS_NS + bool "UTS namespace" + default y + help + In this namespace tasks see different info provided with the + uname() system call + +config IPC_NS + bool "IPC namespace" + depends on (SYSVIPC || POSIX_MQUEUE) + default y + help + In this namespace tasks work with IPC ids which correspond to + different IPC objects in different namespaces. + +config USER_NS + bool "User namespace (EXPERIMENTAL)" + depends on EXPERIMENTAL + default y + help + This allows containers, i.e. vservers, to use user namespaces + to provide different user info for different servers. + If unsure, say N. + +config PID_NS + bool "PID Namespaces" + default y + help + Support process id namespaces. This allows having multiple + processes with the same pid as long as they are in different + pid namespaces. This is a building block of containers. + +config NET_NS + bool "Network namespace" + depends on NET + default y + help + Allow user space to create what appear to be multiple instances + of the network stack. + +endif # NAMESPACES + config MM_OWNER bool @@ -734,57 +780,6 @@ config RELAY If unsure, say N. -config NAMESPACES - bool "Namespaces support" if EMBEDDED - default !EMBEDDED - help - Provides the way to make tasks work with different objects using - the same id. For example same IPC id may refer to different objects - or same user id or pid may refer to different tasks when used in - different namespaces. - -config UTS_NS - bool "UTS namespace" - depends on NAMESPACES - help - In this namespace tasks see different info provided with the - uname() system call - -config IPC_NS - bool "IPC namespace" - depends on NAMESPACES && (SYSVIPC || POSIX_MQUEUE) - help - In this namespace tasks work with IPC ids which correspond to - different IPC objects in different namespaces. - -config USER_NS - bool "User namespace (EXPERIMENTAL)" - depends on NAMESPACES && EXPERIMENTAL - help - This allows containers, i.e. vservers, to use user namespaces - to provide different user info for different servers. - If unsure, say N. - -config PID_NS - bool "PID Namespaces (EXPERIMENTAL)" - default n - depends on NAMESPACES && EXPERIMENTAL - help - Support process id namespaces. This allows having multiple - processes with the same pid as long as they are in different - pid namespaces. This is a building block of containers. - - Unless you want to work with an experimental feature - say N here. - -config NET_NS - bool "Network namespace" - default n - depends on NAMESPACES && EXPERIMENTAL && NET - help - Allow user space to create what appear to be multiple instances - of the network stack. - config BLK_DEV_INITRD bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support" depends on BROKEN || !FRV diff --git a/init/do_mounts.c b/init/do_mounts.c index 42db0551c3aa..830aaec9c7d5 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -291,7 +291,7 @@ static int __init do_mount_root(char *name, char *fs, int flags, void *data) if (err) return err; - sys_chdir("/root"); + sys_chdir((const char __user __force *)"/root"); ROOT_DEV = current->fs->pwd.mnt->mnt_sb->s_dev; printk("VFS: Mounted root (%s filesystem)%s on device %u:%u.\n", current->fs->pwd.mnt->mnt_sb->s_type->name, @@ -361,13 +361,13 @@ out: #ifdef CONFIG_ROOT_NFS static int __init mount_nfs_root(void) { - void *data = nfs_root_data(); + char *root_dev, *root_data; - create_dev("/dev/root", ROOT_DEV); - if (data && - do_mount_root("/dev/root", "nfs", root_mountflags, data) == 0) - return 1; - return 0; + if (nfs_root_data(&root_dev, &root_data) != 0) + return 0; + if (do_mount_root(root_dev, "nfs", root_mountflags, root_data) != 0) + return 0; + return 1; } #endif @@ -488,5 +488,5 @@ void __init prepare_namespace(void) out: devtmpfs_mount("dev"); sys_mount(".", "/", NULL, MS_MOVE, NULL); - sys_chroot("."); + sys_chroot((const char __user __force *)"."); } diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c index 69aebbf8fd2d..32c4799b8c91 100644 --- a/init/do_mounts_md.c +++ b/init/do_mounts_md.c @@ -283,7 +283,7 @@ static void __init autodetect_raid(void) wait_for_device_probe(); - fd = sys_open("/dev/md0", 0, 0); + fd = sys_open((const char __user __force *) "/dev/md0", 0, 0); if (fd >= 0) { sys_ioctl(fd, RAID_AUTORUN, raid_autopart); sys_close(fd); diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c index bf3ef667bf36..6e1ee6987c78 100644 --- a/init/do_mounts_rd.c +++ b/init/do_mounts_rd.c @@ -168,7 +168,7 @@ int __init rd_load_image(char *from) char rotator[4] = { '|' , '/' , '-' , '\\' }; #endif - out_fd = sys_open("/dev/ram", O_RDWR, 0); + out_fd = sys_open((const char __user __force *) "/dev/ram", O_RDWR, 0); if (out_fd < 0) goto out; @@ -267,7 +267,7 @@ noclose_input: sys_close(out_fd); out: kfree(buf); - sys_unlink("/dev/ram"); + sys_unlink((const char __user __force *) "/dev/ram"); return res; } diff --git a/init/initramfs.c b/init/initramfs.c index 4b9c20205092..2531811d42cb 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -483,7 +483,8 @@ static int __init retain_initrd_param(char *str) } __setup("retain_initrd", retain_initrd_param); -extern char __initramfs_start[], __initramfs_end[]; +extern char __initramfs_start[]; +extern unsigned long __initramfs_size; #include <linux/initrd.h> #include <linux/kexec.h> @@ -528,7 +529,7 @@ static void __init clean_rootfs(void) struct linux_dirent64 *dirp; int num; - fd = sys_open("/", O_RDONLY, 0); + fd = sys_open((const char __user __force *) "/", O_RDONLY, 0); WARN_ON(fd < 0); if (fd < 0) return; @@ -570,8 +571,7 @@ static void __init clean_rootfs(void) static int __init populate_rootfs(void) { - char *err = unpack_to_rootfs(__initramfs_start, - __initramfs_end - __initramfs_start); + char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size); if (err) panic(err); /* Failed to decompress INTERNAL initramfs */ if (initrd_start) { @@ -585,12 +585,12 @@ static int __init populate_rootfs(void) return 0; } else { clean_rootfs(); - unpack_to_rootfs(__initramfs_start, - __initramfs_end - __initramfs_start); + unpack_to_rootfs(__initramfs_start, __initramfs_size); } printk(KERN_INFO "rootfs image is not initramfs (%s)" "; looks like an initrd\n", err); - fd = sys_open("/initrd.image", O_WRONLY|O_CREAT, 0700); + fd = sys_open((const char __user __force *) "/initrd.image", + O_WRONLY|O_CREAT, 0700); if (fd >= 0) { sys_write(fd, (char *)initrd_start, initrd_end - initrd_start); diff --git a/init/noinitramfs.c b/init/noinitramfs.c index f4c1a3a1b8c5..267739d85179 100644 --- a/init/noinitramfs.c +++ b/init/noinitramfs.c @@ -29,17 +29,17 @@ static int __init default_rootfs(void) { int err; - err = sys_mkdir("/dev", 0755); + err = sys_mkdir((const char __user __force *) "/dev", 0755); if (err < 0) goto out; - err = sys_mknod((const char __user *) "/dev/console", + err = sys_mknod((const char __user __force *) "/dev/console", S_IFCHR | S_IRUSR | S_IWUSR, new_encode_dev(MKDEV(5, 1))); if (err < 0) goto out; - err = sys_mkdir("/root", 0700); + err = sys_mkdir((const char __user __force *) "/root", 0700); if (err < 0) goto out; |