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btrfs: store and load values of stripes_min/stripes_max in balance status item

Message ID 20161101132123.11673-1-dsterba@suse.com (mailing list archive)
State Accepted
Headers show

Commit Message

David Sterba Nov. 1, 2016, 1:21 p.m. UTC 
The balance status item contains currently known filter values, but the
stripes filter was unintentionally not among them. This would mean, that
interrupted and automatically restarted balance does not apply the
stripe filters.

Fixes: dee32d0ac3719ef8d640efaf0884111df444730f
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/ctree.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9d8edcb0813c..223c706aea1f 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2210,6 +2210,8 @@  btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
 	cpu->target = le64_to_cpu(disk->target);
 	cpu->flags = le64_to_cpu(disk->flags);
 	cpu->limit = le64_to_cpu(disk->limit);
+	cpu->stripes_min = le32_to_cpu(disk->stripes_min);
+	cpu->stripes_max = le32_to_cpu(disk->stripes_max);
 }
 
 static inline void
@@ -2228,6 +2230,8 @@  btrfs_cpu_balance_args_to_disk(struct btrfs_disk_balance_args *disk,
 	disk->target = cpu_to_le64(cpu->target);
 	disk->flags = cpu_to_le64(cpu->flags);
 	disk->limit = cpu_to_le64(cpu->limit);
+	disk->stripes_min = cpu_to_le32(cpu->stripes_min);
+	disk->stripes_max = cpu_to_le32(cpu->stripes_max);
 }
 
 /* struct btrfs_super_block */