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authorNeilBrown <neilb@suse.de>2012-03-19 05:46:40 +0400
committerNeilBrown <neilb@suse.de>2012-03-19 05:46:40 +0400
commit57148964d946614ffc6621539096ded1e7d896ab (patch)
treed4bdadf58d740fcdb3c65063a5706cc3902f2b9b /drivers/md/bitmap.c
parent4ba97dff719b4cbeb7a4f6beddd2feb7404102d8 (diff)
downloadlinux-57148964d946614ffc6621539096ded1e7d896ab.tar.xz
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>
Diffstat (limited to 'drivers/md/bitmap.c')
-rw-r--r--drivers/md/bitmap.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 2c5dbc6248d3..04df18e8885f 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 @@ out:
}
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)
{