btrfs_sysfs_feature_update() was introduced with commit 444e75169872 (btrfs:
sysfs: introduce helper for syncing bits with sysfs files) to provide a helper
which was used in 14e46e04958d (btrfs: synchronize incompat feature bits with
sysfs files).
But commit e410e34fad91 (Revert "btrfs: synchronize incompat feature bits with
sysfs files") reverted 14e46e04958d so btrfs_sysfs_feature_update() ended up
as an unused function.
Signed-off-by: Johannes Thumshirn <jthumsh...@suse.de>
---
fs/btrfs/sysfs.c | 33 ---------------------------------
fs/btrfs/sysfs.h | 2 --
2 files changed, 35 deletions(-)
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 3717c864ba23..a22a7c5f75eb 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -858,39 +858,6 @@ int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info)
return error;
}
-
-/*
- * Change per-fs features in /sys/fs/btrfs/UUID/features to match current
- * values in superblock. Call after any changes to incompat/compat_ro flags
- */
-void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info,
- u64 bit, enum btrfs_feature_set set)
-{
- struct btrfs_fs_devices *fs_devs;
- struct kobject *fsid_kobj;
- u64 features;
- int ret;
-
- if (!fs_info)
- return;
-
- features = get_features(fs_info, set);
- ASSERT(bit & supported_feature_masks[set]);
-
- fs_devs = fs_info->fs_devices;
- fsid_kobj = &fs_devs->fsid_kobj;
-
- if (!fsid_kobj->state_initialized)
- return;
-
- /*
- * FIXME: this is too heavy to update just one value, ideally we'd like
- * to use sysfs_update_group but some refactoring is needed first.
- */
- sysfs_remove_group(fsid_kobj, &btrfs_feature_attr_group);
- ret = sysfs_create_group(fsid_kobj, &btrfs_feature_attr_group);
-}
-
static int btrfs_init_debugfs(void)
{
#ifdef CONFIG_DEBUG_FS
diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h
index c6ee600aff89..93feedde8485 100644
--- a/fs/btrfs/sysfs.h
+++ b/fs/btrfs/sysfs.h
@@ -88,7 +88,5 @@ int btrfs_sysfs_add_fsid(struct btrfs_fs_devices *fs_devs,
struct kobject *parent);
int btrfs_sysfs_add_device(struct btrfs_fs_devices *fs_devs);
void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs);
-void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info,
- u64 bit, enum btrfs_feature_set set);
#endif
--
2.16.4
