https://bugzilla.kernel.org/show_bug.cgi?id=206443 --- Comment #13 from Suraj (surajjs@xxxxxxxxxx) --- Your approach using call_rcu is very similar to something I was also exploring so that looks good to me. Apologies, I didn't realise that patches attached to the BZ had to be mailing list ready. There is also the same issue present with the resizing of the s_group_info and s_flex_groups arrays which are addressed in the following patches which I have posted to the EXT4 mailing list: [1/3] ext4: introduce macro sbi_array_rcu_deref() to access rcu protected fields [1] [2/3] ext4: fix potential race between s_group_info online resizing and access [2] [3/3] ext4: fix potential race between s_flex_groups online resizing and access [3] [1] http://patchwork.ozlabs.org/patch/1240507/ [2] http://patchwork.ozlabs.org/patch/1240506/ [3] http://patchwork.ozlabs.org/patch/1240509/ -- You are receiving this mail because: You are watching the assignee of the bug.