Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix

Signed-off-by: Ingo Molnar <mingo@kernel.org>

2 files changed, 40 insertions, 6 deletions

diff --git a/init/do_mounts.c b/init/do_mounts.c
index e1c9afa9d8c9..a754e3ba9831 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -167,6 +167,24 @@ done:
 	}
 	return res;
 }
+
+/**
+ * match_dev_by_label - callback for finding a partition using its label
+ * @dev:	device passed in by the caller
+ * @data:	opaque pointer to the label to match
+ *
+ * Returns 1 if the device matches, and 0 otherwise.
+ */
+static int match_dev_by_label(struct device *dev, const void *data)
+{
+	const char *label = data;
+	struct hd_struct *part = dev_to_part(dev);
+
+	if (part->info && !strcmp(label, part->info->volname))
+		return 1;
+
+	return 0;
+}
 #endif
 
 /*
@@ -190,6 +208,8 @@ done:
  *	   a partition with a known unique id.
  *	8) <major>:<minor> major and minor number of the device separated by
  *	   a colon.
+ *	9) PARTLABEL=<name> with name being the GPT partition label.
+ *	   MSDOS partitions do not support labels!
  *
  *	If name doesn't have fall into the categories above, we return (0,0).
  *	block_class is used to check if something is a disk name. If the disk
@@ -211,6 +231,17 @@ dev_t name_to_dev_t(const char *name)
 		if (!res)
 			goto fail;
 		goto done;
+	} else if (strncmp(name, "PARTLABEL=", 10) == 0) {
+		struct device *dev;
+
+		dev = class_find_device(&block_class, NULL, name + 10,
+					&match_dev_by_label);
+		if (!dev)
+			goto fail;
+
+		res = dev->devt;
+		put_device(dev);
+		goto done;
 	}
 #endif
 
diff --git a/init/main.c b/init/main.c
index 1c3f90264280..ee147103ba1b 100644
--- a/init/main.c
+++ b/init/main.c
@@ -25,7 +25,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/console.h>
 #include <linux/nmi.h>
@@ -375,10 +375,11 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 static void __init setup_command_line(char *command_line)
 {
 	saved_command_line =
-		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
+		memblock_alloc(strlen(boot_command_line) + 1, SMP_CACHE_BYTES);
 	initcall_command_line =
-		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
-	static_command_line = memblock_virt_alloc(strlen(command_line) + 1, 0);
+		memblock_alloc(strlen(boot_command_line) + 1, SMP_CACHE_BYTES);
+	static_command_line = memblock_alloc(strlen(command_line) + 1,
+					     SMP_CACHE_BYTES);
 	strcpy(saved_command_line, boot_command_line);
 	strcpy(static_command_line, command_line);
 }
@@ -773,8 +774,10 @@ static int __init initcall_blacklist(char *str)
 		str_entry = strsep(&str, ",");
 		if (str_entry) {
 			pr_debug("blacklisting initcall %s\n", str_entry);
-			entry = alloc_bootmem(sizeof(*entry));
-			entry->buf = alloc_bootmem(strlen(str_entry) + 1);
+			entry = memblock_alloc(sizeof(*entry),
+					       SMP_CACHE_BYTES);
+			entry->buf = memblock_alloc(strlen(str_entry) + 1,
+						    SMP_CACHE_BYTES);
 			strcpy(entry->buf, str_entry);
 			list_add(&entry->next, &blacklisted_initcalls);
 		}