- Update to 2.6.25-rc3.

[linux-flexiantxendom0-3.2.10.git] / drivers / md / bitmap.c

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 1b1ef31..7aeceed 100644 (file)
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -206,16 +206,10 @@ static void bitmap_checkfree(struct bitmap *bitmap, unsigned long page)
 /* copy the pathname of a file to a buffer */
 char *file_path(struct file *file, char *buf, int count)
 {
-       struct dentry *d;
-       struct vfsmount *v;
-
        if (!buf)
                return NULL;
 
-       d = file->f_path.dentry;
-       v = file->f_path.mnt;
-
-       buf = d_path(d, v, buf, count);
+       buf = d_path(&file->f_path, buf, count);
 
        return IS_ERR(buf) ? NULL : buf;
 }
@@ -237,7 +231,7 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long inde
        if (!page)
                return ERR_PTR(-ENOMEM);
 
-       ITERATE_RDEV(mddev, rdev, tmp) {
+       rdev_for_each(rdev, tmp, mddev) {
                if (! test_bit(In_sync, &rdev->flags)
                    || test_bit(Faulty, &rdev->flags))
                        continue;
@@ -261,7 +255,7 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait)
        struct list_head *tmp;
        mddev_t *mddev = bitmap->mddev;
 
-       ITERATE_RDEV(mddev, rdev, tmp)
+       rdev_for_each(rdev, tmp, mddev)
                if (test_bit(In_sync, &rdev->flags)
                    && !test_bit(Faulty, &rdev->flags)) {
                        int size = PAGE_SIZE;
@@ -1348,14 +1342,38 @@ void bitmap_close_sync(struct bitmap *bitmap)
         */
        sector_t sector = 0;
        int blocks;
-       if (!bitmap) return;
+       if (!bitmap)
+               return;
        while (sector < bitmap->mddev->resync_max_sectors) {
                bitmap_end_sync(bitmap, sector, &blocks, 0);
-/*
-               if (sector < 500) printk("bitmap_close_sync: sec %llu blks %d\n",
-                                        (unsigned long long)sector, blocks);
-*/             sector += blocks;
+               sector += blocks;
+       }
+}
+
+void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector)
+{
+       sector_t s = 0;
+       int blocks;
+
+       if (!bitmap)
+               return;
+       if (sector == 0) {
+               bitmap->last_end_sync = jiffies;
+               return;
+       }
+       if (time_before(jiffies, (bitmap->last_end_sync
+                                 + bitmap->daemon_sleep * HZ)))
+               return;
+       wait_event(bitmap->mddev->recovery_wait,
+                  atomic_read(&bitmap->mddev->recovery_active) == 0);
+
+       sector &= ~((1ULL << CHUNK_BLOCK_SHIFT(bitmap)) - 1);
+       s = 0;
+       while (s < sector && s < bitmap->mddev->resync_max_sectors) {
+               bitmap_end_sync(bitmap, s, &blocks, 0);
+               s += blocks;
        }
+       bitmap->last_end_sync = jiffies;
 }
 
 static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int needed)
@@ -1565,3 +1583,4 @@ EXPORT_SYMBOL(bitmap_start_sync);
 EXPORT_SYMBOL(bitmap_end_sync);
 EXPORT_SYMBOL(bitmap_unplug);
 EXPORT_SYMBOL(bitmap_close_sync);
+EXPORT_SYMBOL(bitmap_cond_end_sync);