Re: [PATCH] btrfs: Fix suspicious RCU usage warning in device_list_add

2018-11-14 Thread Lu Fengqi
On Wed, Nov 14, 2018 at 05:05:48PM +0100, David Sterba wrote: >On Wed, Nov 14, 2018 at 03:24:56PM +0800, Lu Fengqi wrote: >> = >> WARNING: suspicious RCU usage >> 4.20.0-rc2+ #23 Tainted: G O >> - >> fs/btrfs/volumes.c:886

Re: [PATCH] btrfs: Fix suspicious RCU usage warning in device_list_add

2018-11-14 Thread David Sterba
On Wed, Nov 14, 2018 at 03:24:56PM +0800, Lu Fengqi wrote: > = > WARNING: suspicious RCU usage > 4.20.0-rc2+ #23 Tainted: G O > - > fs/btrfs/volumes.c:886 suspicious rcu_dereference_check() usage! > > Use btrfs_info_in_rcu instead

Re: [PATCH] btrfs: Fix suspicious RCU usage warning in device_list_add

2018-11-14 Thread Anand Jain
On 11/14/2018 03:24 PM, Lu Fengqi wrote: = WARNING: suspicious RCU usage 4.20.0-rc2+ #23 Tainted: G O - fs/btrfs/volumes.c:886 suspicious rcu_dereference_check() usage! Use btrfs_info_in_rcu instead of pr_info for the required

Re: [PATCH] btrfs: Fix suspicious RCU usage warning in device_list_add

2018-11-13 Thread Nikolay Borisov
On 14.11.18 г. 9:24 ч., Lu Fengqi wrote: > = > WARNING: suspicious RCU usage > 4.20.0-rc2+ #23 Tainted: G O > - > fs/btrfs/volumes.c:886 suspicious rcu_dereference_check() usage! > > Use btrfs_info_in_rcu instead of pr_info for

[PATCH] btrfs: Fix suspicious RCU usage warning in device_list_add

2018-11-13 Thread Lu Fengqi
= WARNING: suspicious RCU usage 4.20.0-rc2+ #23 Tainted: G O - fs/btrfs/volumes.c:886 suspicious rcu_dereference_check() usage! Use btrfs_info_in_rcu instead of pr_info for the required lock/unlock of RCU string. Fixes: