diff options
Diffstat (limited to 'init/initramfs.c')
| -rw-r--r-- | init/initramfs.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/init/initramfs.c b/init/initramfs.c index 8216c303b08..a8497fab1c3 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -1,3 +1,13 @@ +/* + * Many of the syscalls used in this file expect some of the arguments + * to be __user pointers not __kernel pointers. To limit the sparse + * noise, turn off sparse checking for this file. + */ +#ifdef __CHECKER__ +#undef __CHECKER__ +#warning "Sparse checking disabled for this file" +#endif + #include <linux/init.h> #include <linux/fs.h> #include <linux/slab.h> @@ -74,7 +84,7 @@ static void __init free_hash(void) } } -static long __init do_utime(char __user *filename, time_t mtime) +static long __init do_utime(char *filename, time_t mtime) { struct timespec t[2]; @@ -445,6 +455,7 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len) } this_header = 0; decompress = decompress_method(buf, len, &compress_name); + pr_debug("Detected %s compressed data\n", compress_name); if (decompress) { res = decompress(buf, len, NULL, flush_buffer, NULL, &my_inptr, error); @@ -529,7 +540,7 @@ static void __init clean_rootfs(void) struct linux_dirent64 *dirp; int num; - fd = sys_open((const char __user __force *) "/", O_RDONLY, 0); + fd = sys_open("/", O_RDONLY, 0); WARN_ON(fd < 0); if (fd < 0) return; @@ -573,7 +584,7 @@ static int __init populate_rootfs(void) { char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size); if (err) - panic(err); /* Failed to decompress INTERNAL initramfs */ + panic("%s", err); /* Failed to decompress INTERNAL initramfs */ if (initrd_start) { #ifdef CONFIG_BLK_DEV_RAM int fd; @@ -582,14 +593,14 @@ static int __init populate_rootfs(void) initrd_end - initrd_start); if (!err) { free_initrd(); - return 0; + goto done; } else { clean_rootfs(); 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((const char __user __force *) "/initrd.image", + fd = sys_open("/initrd.image", O_WRONLY|O_CREAT, 0700); if (fd >= 0) { sys_write(fd, (char *)initrd_start, @@ -597,6 +608,7 @@ static int __init populate_rootfs(void) sys_close(fd); free_initrd(); } + done: #else printk(KERN_INFO "Unpacking initramfs...\n"); err = unpack_to_rootfs((char *)initrd_start, @@ -605,6 +617,11 @@ static int __init populate_rootfs(void) printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err); free_initrd(); #endif + /* + * Try loading default modules from initramfs. This gives + * us a chance to load before device_initcalls. + */ + load_default_modules(); } return 0; } |