Hyunchul,
Am 30.05.2017 um 04:37 schrieb Hyunchul Lee:
>> UBIFS is designed to be power-cut tolerant.
>> So, UBIFS must not corrupt in any case.
>>
>> Which failure are you facing?
>>
>> I have the feeling that you try to paper over some other issue. :-)
>
> The failure hasn't happened. I wondere
On Mon, May 29, 2017 at 10:42:37AM +0200, Richard Weinberger wrote:
> Hyunchul,
>
> Am 29.05.2017 um 04:24 schrieb Hyunchul Lee:
> >>> This is just broken. First ubifs should still properly propagate
> >>> the errors, and second freezing/unfreezing read only file systems is
> >>> perfectly valid,
On Mon, May 29, 2017 at 1:17 PM, Richard Weinberger wrote:
> Amir,
>
> Am 29.05.2017 um 12:04 schrieb Amir Goldstein:
>>> Well, UBIFS is a bit different.
>>> The UBIFS journal is not an add-on feature, you have to replay it in
>>> any case. Otherwise you're facing corrupted data.
>>
>> Yes, I supp
Amir,
Am 29.05.2017 um 12:04 schrieb Amir Goldstein:
>> Well, UBIFS is a bit different.
>> The UBIFS journal is not an add-on feature, you have to replay it in
>> any case. Otherwise you're facing corrupted data.
>
> Yes, I suppose you are right.
> I guess there is no equivalent of mount -oro,{no
On Mon, May 29, 2017 at 12:00 PM, Richard Weinberger wrote:
> Amir, Hyunchul,
>
> Am 29.05.2017 um 07:40 schrieb Amir Goldstein:
>> On Mon, May 29, 2017 at 7:40 AM, Hyunchul Lee wrote:
>>>
>>> and I missed the following case.
>>>
>>> in some embedded systems, clean-up for shutdown should be fast.
Amir, Hyunchul,
Am 29.05.2017 um 07:40 schrieb Amir Goldstein:
> On Mon, May 29, 2017 at 7:40 AM, Hyunchul Lee wrote:
>>
>> and I missed the following case.
>>
>> in some embedded systems, clean-up for shutdown should be fast.
>> during this clean-up, freeze file system to guarantee integrity.
>>
Hyunchul,
Am 29.05.2017 um 04:24 schrieb Hyunchul Lee:
>>> This is just broken. First ubifs should still properly propagate
>>> the errors, and second freezing/unfreezing read only file systems is
>>> perfectly valid,
>>
>> it is right.
>
> if updating TNC is failed, ubifs might become inconsis
On Mon, May 29, 2017 at 7:40 AM, Hyunchul Lee wrote:
>
> and I missed the following case.
>
> in some embedded systems, clean-up for shutdown should be fast.
> during this clean-up, freeze file system to guarantee integrity.
> umount with MNT_DETACH is not suitable because of not killing tasks.
>
and I missed the following case.
in some embedded systems, clean-up for shutdown should be fast.
during this clean-up, freeze file system to guarantee integrity.
umount with MNT_DETACH is not suitable because of not killing tasks.
On Mon, May 29, 2017 at 10:18:34AM +0900, Hyunchul Lee wrote:
> H
Hi, Richard.
On Mon, May 29, 2017 at 09:43:46AM +0900, Hyunchul Lee wrote:
> On Sat, May 27, 2017 at 01:23:38AM -0700, Christoph Hellwig wrote:
> > > +static int ubifs_freeze_super(struct super_block *sb)
> > > +{
> > > + struct ubifs_info *c = sb->s_fs_info;
> > > + int err;
> > > +
> > > + dbg_g
Hi, Richard.
On Fri, May 26, 2017 at 11:52:42AM +0200, Richard Weinberger wrote:
> Hyunchul,
>
> Am 26.05.2017 um 01:30 schrieb Hyunchul Lee:
> > From: Hyunchul Lee
> >
> > for un/freeze support, implement freeze_super and un/freeze_fs
> > of super_operations.
> > ubifs_freeze_super just calls
On Sat, May 27, 2017 at 01:23:38AM -0700, Christoph Hellwig wrote:
> > +static int ubifs_freeze_super(struct super_block *sb)
> > +{
> > + struct ubifs_info *c = sb->s_fs_info;
> > + int err;
> > +
> > + dbg_gen("starting");
> > + /* freeze_super always succeeds if file system is in read-on
> +static int ubifs_freeze_super(struct super_block *sb)
> +{
> + struct ubifs_info *c = sb->s_fs_info;
> + int err;
> +
> + dbg_gen("starting");
> + /* freeze_super always succeeds if file system is in read-only.
> + * however if there are errors, UBIFS is switched to read-onl
On Fri, May 26, 2017 at 11:52:42AM +0200, Richard Weinberger wrote:
> Hyunchul,
>
> Am 26.05.2017 um 01:30 schrieb Hyunchul Lee:
> > From: Hyunchul Lee
> >
> > for un/freeze support, implement freeze_super and un/freeze_fs
> > of super_operations.
> > ubifs_freeze_super just calls freeze_super.
Hyunchul,
Am 26.05.2017 um 01:30 schrieb Hyunchul Lee:
> From: Hyunchul Lee
>
> for un/freeze support, implement freeze_super and un/freeze_fs
> of super_operations.
> ubifs_freeze_super just calls freeze_super. because freeze_super always
> succeeds if file system is read-only, UBIFS errors sh
From: Hyunchul Lee
for un/freeze support, implement freeze_super and un/freeze_fs
of super_operations.
ubifs_freeze_super just calls freeze_super. because freeze_super always
succeeds if file system is read-only, UBIFS errors should be checked.
if there are errors, UBIFS is switched to read-only
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