From: Anand Jain <anand.jain@oracle.com>
To: dsterba@suse.cz, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 6/6] btrfs: refactor btrfs_find_device() return error code
Date: Fri, 18 Jan 2019 14:13:26 +0800 [thread overview]
Message-ID: <8e14c714-d869-f8a8-9832-610313d2254b@oracle.com> (raw)
In-Reply-To: <20190117154922.GU2900@twin.jikos.cz>
On 01/17/2019 11:49 PM, David Sterba wrote:
> On Thu, Jan 17, 2019 at 11:32:33PM +0800, Anand Jain wrote:
>> Refactor btrfs_find_device() to return standard error code.
>
> Do you intend to add more error codes?
No actually.
code like this ...
if (PTR_ERR(device) == -ENOENT)
can be
if (IS_ERR(device))
> A NULL is valid in case it's
> clear that it always means 'device not found'.
>
Oh. I am not too particular, I am ok to drop this patch.
The thought process was.. having btrfs_find_device() to return standard
err code made code at @@ -2404,8 +2404,6 @@; @@ -2419,13 +2417,9 @@;
simpler.
And as ioctls already return -ENODEV (though it might not be correct
one), so if btrfs_find_device() could return -ENODEV (instead of
-ENOENT) then there are few more places where code can be just ..
if (IS_ERR(device))
return PTR_ERR(device);
What do you think?
Thanks, Anand
next prev parent reply other threads:[~2019-01-18 6:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-17 15:32 [PATCH 0/6] btrfs: find_device cleanups Anand Jain
2019-01-17 15:32 ` [PATCH 1/6] btrfs: merge btrfs_find_device_missing_or_by_path() into parent Anand Jain
2019-01-17 15:57 ` David Sterba
2019-01-17 15:32 ` [PATCH 2/6] btrfs: cleanup btrfs_find_device_by_devspec() Anand Jain
2019-01-17 15:57 ` David Sterba
2019-01-17 15:32 ` [PATCH 3/6] btrfs: rename btrfs_find_device_by_path() Anand Jain
2019-01-17 15:54 ` David Sterba
2019-01-18 6:13 ` Anand Jain
2019-01-18 17:05 ` David Sterba
2019-01-17 15:32 ` [PATCH 4/6] btrfs: refactor btrfs_find_device() take fs_devices as argument Anand Jain
2019-01-17 15:58 ` David Sterba
2019-01-17 15:32 ` [PATCH 5/6] btrfs: merge btrfs_find_device() and find_device() Anand Jain
2019-01-17 15:51 ` David Sterba
2019-01-19 6:48 ` [PATCH 5/6 v2] " Anand Jain
2019-01-23 5:28 ` Anand Jain
2019-01-28 18:44 ` David Sterba
2019-01-17 15:32 ` [PATCH 6/6] btrfs: refactor btrfs_find_device() return error code Anand Jain
2019-01-17 15:49 ` David Sterba
2019-01-18 6:13 ` Anand Jain [this message]
2019-01-18 17:20 ` David Sterba
2019-01-18 17:33 ` [PATCH 0/6] btrfs: find_device cleanups David Sterba
2019-01-19 6:54 ` Anand Jain
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