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authorGavin Shan <gshan@redhat.com>2023-01-20 08:57:26 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-20 16:15:00 +0300
commit7c09f4281cb6ec0fc202f53924ed6c389c61bf0e (patch)
treefc50740429024ac5b92d5d10889ae65eda12866e
parentf7d85515bd21902b218370a1a6301f76e4e636ff (diff)
downloadlinux-7c09f4281cb6ec0fc202f53924ed6c389c61bf0e.tar.xz
drivers/base/memory: Fix comments for phys_index_show()
According to 'admin-guide/mm/memory-hotplug.rst', the memory block ID, instead of the section index, is shown by '/sys/devices/system/memory/ memoryX/phys_index'. Fix the comments to match with 'admin-guide/mm/memory-hotplug.rst'. Besides, use the existing helper memory_block_id() to convert the section index to the memory block index. No functional change intended. Signed-off-by: Gavin Shan <gshan@redhat.com> Link: https://lore.kernel.org/r/20230120055727.355483-2-gshan@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/base/memory.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index fe98fb8d94e5..b456ac213610 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -115,18 +115,13 @@ unsigned long __weak memory_block_size_bytes(void)
}
EXPORT_SYMBOL_GPL(memory_block_size_bytes);
-/*
- * Show the first physical section index (number) of this memory block.
- */
+/* Show the memory block ID, relative to the memory block size */
static ssize_t phys_index_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct memory_block *mem = to_memory_block(dev);
- unsigned long phys_index;
-
- phys_index = mem->start_section_nr / sections_per_block;
- return sysfs_emit(buf, "%08lx\n", phys_index);
+ return sysfs_emit(buf, "%08lx\n", memory_block_id(mem->start_section_nr));
}
/*