Re: [PATCH 1/1] Btrfs: consolidate btrfs_error() to btrfs_std_error()

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On 09/25/2015 06:31 PM, David Sterba wrote:
On Fri, Sep 25, 2015 at 02:43:01PM +0800, Anand Jain wrote:
btrfs_error() and btrfs_std_error() does the same thing
and calls _btrfs_std_error(), so consolidate them together.
And the main motivation is that btrfs_error() is closely
named with btrfs_err(), one handles error action the other
is to log the error, so don't closely name them.

Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
Suggested-by: David Sterba <dsterba@xxxxxxxx>

Reviewed-by: David Sterba <dsterba@xxxxxxxx>

I guess we can live with the extra NULL argument, in some cases it does
not make sense to put a string there.

--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4852,7 +4852,7 @@ static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg)
  	/* update qgroup status and info */
  	err = btrfs_run_qgroups(trans, root->fs_info);
  	if (err < 0)
-		btrfs_error(root->fs_info, ret,
+		btrfs_std_error(root->fs_info, ret,

This looks like a bug, ret instead of err. The value of 'ret' is set by
add/del qgroup relation which might fail if the relations are there, but
we do not care. We're likely interested in the return code of
btrfs_run_qgroups, ie. err. Can you please send a new patch on top of this?


 I think the original code intended to log the error (btrfs_err())
 instead of handle the error (btrfs_error()->btrfs_std_error()).

 Qu, Any idea ?

Thanks, Anand


  			    "failed to update qgroup status and info\n");
  	err = btrfs_end_transaction(trans, root);
  	if (err && !ret)
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