md/bitmap: move printing of bitmap status to bitmap.c
The part of /proc/mdstat which describes the bitmap should really
be generated by code in bitmap.c. So move it there.
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 2c5dbc6..04df18e 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -26,6 +26,7 @@
#include <linux/file.h>
#include <linux/mount.h>
#include <linux/buffer_head.h>
+#include <linux/seq_file.h>
#include "md.h"
#include "bitmap.h"
@@ -1836,6 +1837,33 @@
}
EXPORT_SYMBOL_GPL(bitmap_load);
+void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
+{
+ unsigned long chunk_kb;
+ unsigned long flags;
+
+ if (!bitmap)
+ return;
+
+ spin_lock_irqsave(&bitmap->lock, flags);
+ chunk_kb = bitmap->mddev->bitmap_info.chunksize >> 10;
+ seq_printf(seq, "bitmap: %lu/%lu pages [%luKB], "
+ "%lu%s chunk",
+ bitmap->pages - bitmap->missing_pages,
+ bitmap->pages,
+ (bitmap->pages - bitmap->missing_pages)
+ << (PAGE_SHIFT - 10),
+ chunk_kb ? chunk_kb : bitmap->mddev->bitmap_info.chunksize,
+ chunk_kb ? "KB" : "B");
+ if (bitmap->file) {
+ seq_printf(seq, ", file: ");
+ seq_path(seq, &bitmap->file->f_path, " \t\n");
+ }
+
+ seq_printf(seq, "\n");
+ spin_unlock_irqrestore(&bitmap->lock, flags);
+}
+
static ssize_t
location_show(struct mddev *mddev, char *page)
{