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authorChristoph Hellwig <hch@lst.de>2023-05-31 14:55:19 +0200
committerJens Axboe <axboe@kernel.dk>2023-06-05 10:55:20 -0600
commitc8643c72bc42781fc169c6498a3902bec447099e (patch)
tree253c1604456d74d3bc77d5a76734d686f62b2bc8 /init/do_mounts.c
parenta6a41d39c2d91ff2543d31b6cc6070f3957e3aea (diff)
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 <hch@lst.de> Link: https://lore.kernel.org/r/20230531125535.676098-9-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'init/do_mounts.c')
-rw-r--r--init/do_mounts.c29
1 files changed, 16 insertions, 13 deletions
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);