4 files changed, 17 insertions, 0 deletions

diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c
index 393e36bd5845..94e887f5ec4e 100644
--- a/fs/btrfs/free-space-tree.c
+++ b/fs/btrfs/free-space-tree.c
@@ -23,6 +23,7 @@
 #include "locking.h"
 #include "free-space-tree.h"
 #include "transaction.h"
+#include "sysfs.h"
 
 static int __add_block_group_free_space(struct btrfs_trans_handle *trans,
                                         struct btrfs_fs_info *fs_info,
@@ -1169,6 +1170,9 @@ int btrfs_create_free_space_tree(struct btrfs_fs_info *fs_info)
         }
 
         btrfs_set_fs_compat_ro(fs_info, FREE_SPACE_TREE);
+        btrfs_sysfs_feature_update(fs_info,
+                BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE, FEAT_COMPAT_RO);
+
         fs_info->creating_free_space_tree = 0;
 
         ret = btrfs_commit_transaction(trans, tree_root);
@@ -1237,6 +1241,9 @@ int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info)
                 return PTR_ERR(trans);
 
         btrfs_clear_fs_compat_ro(fs_info, FREE_SPACE_TREE);
+        btrfs_sysfs_feature_update(fs_info,
+                BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE, FEAT_COMPAT_RO);
+
         fs_info->free_space_root = NULL;
 
         ret = clear_free_space_tree(trans, free_space_root);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index e392dd67f0ba..209dcfa9ab33 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1455,6 +1455,8 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
 
         if (range->compress_type == BTRFS_COMPRESS_LZO) {
                 btrfs_set_fs_incompat(root->fs_info, COMPRESS_LZO);
+                btrfs_sysfs_feature_update(root->fs_info,
+                        BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO, FEAT_INCOMPAT);
         }
 
         ret = defrag_count;
@@ -4063,6 +4065,8 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
         btrfs_free_path(path);
 
         btrfs_set_fs_incompat(root->fs_info, DEFAULT_SUBVOL);
+        btrfs_sysfs_feature_update(root->fs_info,
+                BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL, FEAT_INCOMPAT);
         btrfs_end_transaction(trans, root);
 out:
         mnt_drop_write_file(file);
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 86f7fdc05633..5a1bab11984d 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -58,6 +58,7 @@
 #include "dev-replace.h"
 #include "free-space-cache.h"
 #include "backref.h"
+#include "sysfs.h"
 #include "tests/btrfs-tests.h"
 
 #include "qgroup.h"
@@ -477,6 +478,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
                                 btrfs_clear_opt(info->mount_opt, NODATACOW);
                                 btrfs_clear_opt(info->mount_opt, NODATASUM);
                                 btrfs_set_fs_incompat(info, COMPRESS_LZO);
+                                btrfs_sysfs_feature_update(root->fs_info,
+                                        BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO,
+                                        FEAT_INCOMPAT);
                         } else if (strncmp(args[0].from, "no", 2) == 0) {
                                 compress_type = "no";
                                 btrfs_clear_opt(info->mount_opt, COMPRESS);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index c32abbca9d77..73bcd1322c1d 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4468,6 +4468,8 @@ static void check_raid56_incompat_flag(struct btrfs_fs_info *info, u64 type)
                 return;
 
         btrfs_set_fs_incompat(info, RAID56);
+        btrfs_sysfs_feature_update(info, BTRFS_FEATURE_INCOMPAT_RAID56,
+                FEAT_INCOMPAT);
 }
 
 #define BTRFS_MAX_DEVS(r) ((BTRFS_LEAF_DATA_SIZE(r)             \