From c8643c72bc42781fc169c6498a3902bec447099e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 31 May 2023 14:55:19 +0200 Subject: init: pass root_device_name explicitly Instead of declaring root_device_name as a global variable pass it as an argument to the functions using it. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20230531125535.676098-9-hch@lst.de Signed-off-by: Jens Axboe --- init/do_mounts.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) (limited to 'init/do_mounts.c') diff --git a/init/do_mounts.c b/init/do_mounts.c index e708b02d9d65..1405ee7218bf 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -28,7 +28,6 @@ #include "do_mounts.h" int root_mountflags = MS_RDONLY | MS_SILENT; -static char * __initdata root_device_name; static char __initdata saved_root_name[64]; static int root_wait; @@ -391,7 +390,7 @@ out: return ret; } -void __init mount_root_generic(char *name, int flags) +void __init mount_root_generic(char *name, char *pretty_name, int flags) { struct page *page = alloc_page(GFP_KERNEL); char *fs_names = page_address(page); @@ -425,7 +424,7 @@ retry: * and give them a list of the available devices */ printk("VFS: Cannot open root device \"%s\" or %s: error %d\n", - root_device_name, b, err); + pretty_name, b, err); printk("Please append a correct \"root=\" boot option; here are the available partitions:\n"); printk_all_partitions(); @@ -541,7 +540,7 @@ static bool __init fs_is_nodev(char *fstype) return ret; } -static int __init mount_nodev_root(void) +static int __init mount_nodev_root(char *root_device_name) { char *fs_names, *fstype; int err = -EINVAL; @@ -569,21 +568,21 @@ static int __init mount_nodev_root(void) } #ifdef CONFIG_BLOCK -static void __init mount_block_root(void) +static void __init mount_block_root(char *root_device_name) { int err = create_dev("/dev/root", ROOT_DEV); if (err < 0) pr_emerg("Failed to create /dev/root: %d\n", err); - mount_root_generic("/dev/root", root_mountflags); + mount_root_generic("/dev/root", root_device_name, root_mountflags); } #else -static inline void mount_block_root(void) +static inline void mount_block_root(char *root_device_name) { } #endif /* CONFIG_BLOCK */ -void __init mount_root(void) +void __init mount_root(char *root_device_name) { switch (ROOT_DEV) { case Root_NFS: @@ -593,11 +592,12 @@ void __init mount_root(void) mount_cifs_root(); break; case 0: - if (root_device_name && root_fs_names && mount_nodev_root() == 0) + if (root_device_name && root_fs_names && + mount_nodev_root(root_device_name) == 0) break; fallthrough; default: - mount_block_root(); + mount_block_root(root_device_name); break; } } @@ -607,6 +607,8 @@ void __init mount_root(void) */ void __init prepare_namespace(void) { + char *root_device_name; + if (root_delay) { printk(KERN_INFO "Waiting %d sec before mounting root device...\n", root_delay); @@ -628,7 +630,8 @@ void __init prepare_namespace(void) root_device_name = saved_root_name; if (!strncmp(root_device_name, "mtd", 3) || !strncmp(root_device_name, "ubi", 3)) { - mount_root_generic(root_device_name, root_mountflags); + mount_root_generic(root_device_name, root_device_name, + root_mountflags); goto out; } ROOT_DEV = name_to_dev_t(root_device_name); @@ -636,7 +639,7 @@ void __init prepare_namespace(void) root_device_name += 5; } - if (initrd_load()) + if (initrd_load(root_device_name)) goto out; /* wait for any asynchronous scanning to complete */ @@ -649,7 +652,7 @@ void __init prepare_namespace(void) async_synchronize_full(); } - mount_root(); + mount_root(root_device_name); out: devtmpfs_mount(); init_mount(".", "/", NULL, MS_MOVE, NULL); -- cgit v1.2.3