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Commit bf609206 authored Jan 27, 2016 by David Sterba Committed by Chris Mason Jan 27, 2016

btrfs: sysfs: check initialization state before updating features



If the mount phase is not finished, we can't update the sysfs files.

Reported-by: Chris Mason <clm@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>

parent 80ad623e

fs/btrfs/sysfs.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -804,6 +804,9 @@ void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info,
		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.