btrfs: add owner and fs_info to alloc_state io_tree

Commit 1c11b63eff2a ("btrfs: replace pending/pinned chunks lists with io
tree") introduced btrfs_device::alloc_state extent io tree, but it
doesn't initialize the fs_info and owner member.

This means the following features are not properly supported:

- Fs owner report for insert_state() error
  Without fs_info initialized, although btrfs_err() won't panic, it
  won't output which fs is causing the error.

- Wrong owner for trace events
  alloc_state will get the owner as pinned extents.

Fix this by assiging proper fs_info and owner for
btrfs_device::alloc_state.

Fixes: 1c11b63eff2a ("btrfs: replace pending/pinned chunks lists with io tree")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h
index 219a09a..250b8cb 100644 (file)
--- a/fs/btrfs/extent-io-tree.h
+++ b/fs/btrfs/extent-io-tree.h
@@ -48,6 +48,7 @@ enum {
        IO_TREE_INODE_FILE_EXTENT,
        IO_TREE_LOG_CSUM_RANGE,
        IO_TREE_SELFTEST,
+       IO_TREE_DEVICE_ALLOC_STATE,
 };
 
 struct extent_io_tree {

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5d73c28..a028a64 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -406,7 +406,7 @@ void __exit btrfs_cleanup_fs_uuids(void)
  * Returned struct is not linked onto any lists and must be destroyed using
  * btrfs_free_device.
  */
-static struct btrfs_device *__alloc_device(void)
+static struct btrfs_device *__alloc_device(struct btrfs_fs_info *fs_info)
 {
        struct btrfs_device *dev;
 
@@ -433,7 +433,8 @@ static struct btrfs_device *__alloc_device(void)
        btrfs_device_data_ordered_init(dev);
        INIT_RADIX_TREE(&dev->reada_zones, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
        INIT_RADIX_TREE(&dev->reada_extents, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
-       extent_io_tree_init(NULL, &dev->alloc_state, 0, NULL);
+       extent_io_tree_init(fs_info, &dev->alloc_state,
+                           IO_TREE_DEVICE_ALLOC_STATE, NULL);
 
        return dev;
 }
@@ -6532,7 +6533,7 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
        if (WARN_ON(!devid && !fs_info))
                return ERR_PTR(-EINVAL);
 
-       dev = __alloc_device();
+       dev = __alloc_device(fs_info);
        if (IS_ERR(dev))
                return dev;