* [PATCH] staging: erofs: don't check special inode layout
@ 2019-06-28 3:42 Yue Hu
2019-06-28 3:50 ` Gao Xiang
0 siblings, 1 reply; 4+ messages in thread
From: Yue Hu @ 2019-06-28 3:42 UTC (permalink / raw)
To: gaoxiang25, yuchao0, gregkh; +Cc: linux-erofs, devel, linux-kernel, huyue2
From: Yue Hu <huyue2@yulong.com>
Currently, we will check if inode layout is compression or inline if
the inode is special in fill_inode(). Also set ->i_mapping->a_ops for
it. That is pointless since the both modes won't be set for special
inode when creating EROFS filesystem image. So, let's avoid it.
Signed-off-by: Yue Hu <huyue2@yulong.com>
---
drivers/staging/erofs/inode.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
index 1433f25..2fe0f6d 100644
--- a/drivers/staging/erofs/inode.c
+++ b/drivers/staging/erofs/inode.c
@@ -205,6 +205,7 @@ static int fill_inode(struct inode *inode, int isdir)
S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
inode->i_op = &erofs_generic_iops;
init_special_inode(inode, inode->i_mode, inode->i_rdev);
+ goto out_unlock;
} else {
err = -EIO;
goto out_unlock;
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] staging: erofs: don't check special inode layout
2019-06-28 3:42 [PATCH] staging: erofs: don't check special inode layout Yue Hu
@ 2019-06-28 3:50 ` Gao Xiang
2019-06-28 4:19 ` Yue Hu
0 siblings, 1 reply; 4+ messages in thread
From: Gao Xiang @ 2019-06-28 3:50 UTC (permalink / raw)
To: Yue Hu, yuchao0, gregkh
Cc: linux-erofs, devel, linux-kernel, huyue2, Miao Xie
Hi Yue,
On 2019/6/28 11:42, Yue Hu wrote:
> From: Yue Hu <huyue2@yulong.com>
>
> Currently, we will check if inode layout is compression or inline if
> the inode is special in fill_inode(). Also set ->i_mapping->a_ops for
> it. That is pointless since the both modes won't be set for special
> inode when creating EROFS filesystem image. So, let's avoid it.
>
> Signed-off-by: Yue Hu <huyue2@yulong.com>
Have you test this patch with some actual image with legacy mkfs since
new mkfs framework have not supported special inode...
I think that is fine in priciple, however, in case to introduce some potential
issues, I will test this patch later. I will give a Reviewed-by tag after I tested
this patch.
Thanks,
Gao Xiang
> ---
> drivers/staging/erofs/inode.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
> index 1433f25..2fe0f6d 100644
> --- a/drivers/staging/erofs/inode.c
> +++ b/drivers/staging/erofs/inode.c
> @@ -205,6 +205,7 @@ static int fill_inode(struct inode *inode, int isdir)
> S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
> inode->i_op = &erofs_generic_iops;
> init_special_inode(inode, inode->i_mode, inode->i_rdev);
> + goto out_unlock;
> } else {
> err = -EIO;
> goto out_unlock;
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] staging: erofs: don't check special inode layout
2019-06-28 3:50 ` Gao Xiang
@ 2019-06-28 4:19 ` Yue Hu
2019-06-29 8:38 ` Chao Yu
0 siblings, 1 reply; 4+ messages in thread
From: Yue Hu @ 2019-06-28 4:19 UTC (permalink / raw)
To: Gao Xiang
Cc: yuchao0, gregkh, linux-erofs, devel, linux-kernel, huyue2, Miao Xie
On Fri, 28 Jun 2019 11:50:21 +0800
Gao Xiang <gaoxiang25@huawei.com> wrote:
> Hi Yue,
>
> On 2019/6/28 11:42, Yue Hu wrote:
> > From: Yue Hu <huyue2@yulong.com>
> >
> > Currently, we will check if inode layout is compression or inline if
> > the inode is special in fill_inode(). Also set ->i_mapping->a_ops for
> > it. That is pointless since the both modes won't be set for special
> > inode when creating EROFS filesystem image. So, let's avoid it.
> >
> > Signed-off-by: Yue Hu <huyue2@yulong.com>
>
> Have you test this patch with some actual image with legacy mkfs since
> new mkfs framework have not supported special inode...
Hi Xiang,
I'm studying the testing :)
However, already check the code handling for special inode in leagcy mkfs as below:
```c
break;
case EROFS_FT_BLKDEV:
case EROFS_FT_CHRDEV:
case EROFS_FT_FIFO:
case EROFS_FT_SOCK:
mkfs_rank_inode(d);
break;
default:
erofs_err("inode[%s] file_type error =%d",
d->i_fullpath,
```
No special inode layout operations, so this change should be fine.
Thx.
>
> I think that is fine in priciple, however, in case to introduce some potential
> issues, I will test this patch later. I will give a Reviewed-by tag after I tested
> this patch.
Thanks.
>
> Thanks,
> Gao Xiang
>
> > ---
> > drivers/staging/erofs/inode.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
> > index 1433f25..2fe0f6d 100644
> > --- a/drivers/staging/erofs/inode.c
> > +++ b/drivers/staging/erofs/inode.c
> > @@ -205,6 +205,7 @@ static int fill_inode(struct inode *inode, int isdir)
> > S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
> > inode->i_op = &erofs_generic_iops;
> > init_special_inode(inode, inode->i_mode, inode->i_rdev);
> > + goto out_unlock;
> > } else {
> > err = -EIO;
> > goto out_unlock;
> >
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] staging: erofs: don't check special inode layout
2019-06-28 4:19 ` Yue Hu
@ 2019-06-29 8:38 ` Chao Yu
0 siblings, 0 replies; 4+ messages in thread
From: Chao Yu @ 2019-06-29 8:38 UTC (permalink / raw)
To: Yue Hu, Gao Xiang
Cc: gregkh, linux-erofs, devel, linux-kernel, huyue2, Miao Xie
On 2019/6/28 12:19, Yue Hu wrote:
> On Fri, 28 Jun 2019 11:50:21 +0800
> Gao Xiang <gaoxiang25@huawei.com> wrote:
>
>> Hi Yue,
>>
>> On 2019/6/28 11:42, Yue Hu wrote:
>>> From: Yue Hu <huyue2@yulong.com>
>>>
>>> Currently, we will check if inode layout is compression or inline if
>>> the inode is special in fill_inode(). Also set ->i_mapping->a_ops for
>>> it. That is pointless since the both modes won't be set for special
>>> inode when creating EROFS filesystem image. So, let's avoid it.
>>>
>>> Signed-off-by: Yue Hu <huyue2@yulong.com>
>>
>> Have you test this patch with some actual image with legacy mkfs since
>> new mkfs framework have not supported special inode...
>
> Hi Xiang,
>
> I'm studying the testing :)
>
> However, already check the code handling for special inode in leagcy mkfs as below:
>
> ```c
> break;
> case EROFS_FT_BLKDEV:
> case EROFS_FT_CHRDEV:
> case EROFS_FT_FIFO:
> case EROFS_FT_SOCK:
> mkfs_rank_inode(d);
> break;
>
> default:
> erofs_err("inode[%s] file_type error =%d",
> d->i_fullpath,
> ```
>
> No special inode layout operations, so this change should be fine.
>
> Thx.
>
>>
>> I think that is fine in priciple, however, in case to introduce some potential
>> issues, I will test this patch later. I will give a Reviewed-by tag after I tested
>> this patch.
This patch looks good to me, if this won't fail any tests from Xiang, you can add:
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Thanks,
>
> Thanks.
>
>>
>> Thanks,
>> Gao Xiang
>>
>>> ---
>>> drivers/staging/erofs/inode.c | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
>>> index 1433f25..2fe0f6d 100644
>>> --- a/drivers/staging/erofs/inode.c
>>> +++ b/drivers/staging/erofs/inode.c
>>> @@ -205,6 +205,7 @@ static int fill_inode(struct inode *inode, int isdir)
>>> S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
>>> inode->i_op = &erofs_generic_iops;
>>> init_special_inode(inode, inode->i_mode, inode->i_rdev);
>>> + goto out_unlock;
>>> } else {
>>> err = -EIO;
>>> goto out_unlock;
>>>
>
> .
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-06-29 8:38 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2019-06-28 3:42 [PATCH] staging: erofs: don't check special inode layout Yue Hu
2019-06-28 3:50 ` Gao Xiang
2019-06-28 4:19 ` Yue Hu
2019-06-29 8:38 ` Chao Yu
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