Sedat Dilek <sedat.dilek@xxxxxxxxx> writes:
> On Wed, Mar 13, 2013 at 7:37 PM, Felix Fietkau <nbd@xxxxxxxxxxx> wrote:
>> On 2013-03-13 7:12 PM, Robin Holt wrote:
>>> On Wed, Mar 13, 2013 at 05:51:33PM +0100, Sedat Dilek wrote:
>>>> On Wed, Mar 13, 2013 at 5:21 PM, Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
>>>> > On Wed, Mar 13, 2013 at 5:10 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
>>>> >
>>>> >> Anyway, with CONFIG_OVERLAYFS_FS=m I do not see any related messages
>>>> >> when the kernel-module is loaded.
>>>> >> So, is this intended?
>>>> >> SquashFS prints into the logs, so what is it doing differently?
>>>> >
>>>> > Some modules do, some don't. It's not compulsory and not very useful.
>>>> >
>>>>
>>>> What about...
>>>>
>>>> diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
>>>> index 482c26f..92b9ad5 100644
>>>> --- a/fs/overlayfs/super.c
>>>> +++ b/fs/overlayfs/super.c
>>>> @@ -675,11 +675,13 @@ MODULE_ALIAS_FS("overlayfs");
>>>> static int __init ovl_init(void)
>>>> {
>>>> return register_filesystem(&ovl_fs_type);
>>>> + printk(KERN_INFO "overlayfs: loaded\n");
>>>
>>> How about pr_debug(). That makes things quite for most of us but gives
>>> you info when looking for things like boot problems.
>> How is having a printk/pr_debug useful here at all? The fact that other
>> filesystems do this as well is not a good reason...
>> Also, putting it *after* the return statement doesn't make much sense ;)
>>
>
> Hehe, I just checked my new kernel... that does not work (nothing in the logs).
> But I think it's good to see if the filesystem is registered/loaded.
lsmod | grep overlayfs
Eric
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