===================================================================
@@ -944,7 +944,7 @@ void __init e820_reserve_resources(void)
for (i = 0; i < e820_saved.nr_map; i++) {
struct e820entry *entry = &e820_saved.map[i];
firmware_map_add_early(entry->addr,
- entry->addr + entry->size - 1,
+ entry->addr + entry->size,
e820_type_to_string(entry->type));
}
}
===================================================================
@@ -98,7 +98,7 @@ static LIST_HEAD(map_entries);
/**
* firmware_map_add_entry() - Does the real work to add a firmware memmap entry.
* @start: Start of the memory range.
- * @end: End of the memory range (inclusive).
+ * @end: End of the memory range.
* @type: Type of the memory range.
* @entry: Pre-allocated (either kmalloc() or bootmem allocator), uninitialised
* entry.
@@ -113,7 +113,7 @@ static int firmware_map_add_entry(u64 st
BUG_ON(start > end);
entry->start = start;
- entry->end = end;
+ entry->end = end - 1;
entry->type = type;
INIT_LIST_HEAD(&entry->list);
kobject_init(&entry->kobj, &memmap_ktype);
@@ -148,7 +148,7 @@ static int add_sysfs_fw_map_entry(struct
* firmware_map_add_hotplug() - Adds a firmware mapping entry when we do
* memory hotplug.
* @start: Start of the memory range.
- * @end: End of the memory range (inclusive).
+ * @end: End of the memory range.
* @type: Type of the memory range.
*
* Adds a firmware mapping entry. This function is for memory hotplug, it is
@@ -175,7 +175,7 @@ int __meminit firmware_map_add_hotplug(u
/**
* firmware_map_add_early() - Adds a firmware mapping entry.
* @start: Start of the memory range.
- * @end: End of the memory range (inclusive).
+ * @end: End of the memory range.
* @type: Type of the memory range.
*
* Adds a firmware mapping entry. This function uses the bootmem allocator
There are two ways to create /sys/firmware/memmap/X sysfs: - firmware_map_add_early When the system starts, it is calledd from e820_reserve_resources() - firmware_map_add_hotplug When the memory is hot plugged, it is called from add_memory() But these functions are called without unifying value of end argument as below: - end argument of firmware_map_add_early() : start + size - 1 - end argument of firmware_map_add_hogplug() : start + size The patch unifies them to "start + size". Even if applying the patch, /sys/firmware/memmap/X/end file content does not change. CC: Thomas Gleixner <tglx@linutronix.de> CC: Ingo Molnar <mingo@kernel.org> CC: H. Peter Anvin <hpa@zytor.com> CC: Tejun Heo <tj@kernel.org> CC: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> --- arch/x86/kernel/e820.c | 2 +- drivers/firmware/memmap.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html