On 7.03.2018 19:37, Diego wrote:
> A typical notification of filesystem errors looks like this:
>
> BTRFS error (device sda2): bdev /dev/sda2 errs: wr 0, rd 1, flush 0, corrupt
> 0, gen 0
>
> The device name is being printed twice. Also, these abbreviatures
> feel unnecesary. Make the message look like this instead:
>
> BTRFS error (device sda2): errors: write 0, read 1, flush 0, corrupt 0,
> generation 0
>
>
> Signed-off-by: Diego Calleja <dieg...@gmail.com>
> ---
> fs/btrfs/volumes.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index 2ceb924ca0d6..52fee5bb056f 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -7238,9 +7238,8 @@ static void btrfs_dev_stat_print_on_error(struct
> btrfs_device *dev)
> {
> if (!dev->dev_stats_valid)
> return;
> - btrfs_err_rl_in_rcu(dev->fs_info,
> - "bdev %s errs: wr %u, rd %u, flush %u, corrupt %u, gen %u",
> - rcu_str_deref(dev->name),
> + btrfs_err_rl(dev->fs_info,
> + "errors: write %u, read %u, flush %u, corrupt %u, generation
> %u",
> btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_WRITE_ERRS),
> btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_READ_ERRS),
> btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_FLUSH_ERRS),
I think what would be better is to expose the btrfs_dev_name functino in
a header file and instead of open-coding rcu_str_deref use that function
instead. Also I agree that write/read/ are better than wr/rd.
>
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