On Tue, 2014-07-15 at 15:03 +0200, Pavel Machek wrote:
> On Sat 2014-07-12 01:22:04, Dmitry Kasatkin wrote:
> > On 11 July 2014 23:10, Pavel Machek wrote:
> > > On Wed 2014-07-02 11:40:50, Christoph Hellwig wrote:
> > >> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
> > >> > It's ac
On Sat 2014-07-12 01:22:04, Dmitry Kasatkin wrote:
> On 11 July 2014 23:10, Pavel Machek wrote:
> > On Wed 2014-07-02 11:40:50, Christoph Hellwig wrote:
> >> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
> >> > It's acceptable.
> >>
> >> It's not because it will then also affect othe
On 11 July 2014 23:10, Pavel Machek wrote:
> On Wed 2014-07-02 11:40:50, Christoph Hellwig wrote:
>> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
>> > It's acceptable.
>>
>> It's not because it will then also affect other reads going on at the
>> same time.
>>
>> The whole concept o
On Wed 2014-07-02 11:40:50, Christoph Hellwig wrote:
> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
> > It's acceptable.
>
> It's not because it will then also affect other reads going on at the
> same time.
>
> The whole concept of ima is just broken, and if you want to do these
>
On 2 July 2014 21:45, Jeff Moyer wrote:
> Christoph Hellwig writes:
>
>> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
>>> It's acceptable.
>>
>> It's not because it will then also affect other reads going on at the
>> same time.
>
> OK, that part I was fuzzy on. I wasn't sure if
Christoph Hellwig writes:
> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
>> It's acceptable.
>
> It's not because it will then also affect other reads going on at the
> same time.
OK, that part I was fuzzy on. I wasn't sure if they were preventing
other reads/writes to the same f
On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
> It's acceptable.
It's not because it will then also affect other reads going on at the
same time.
The whole concept of ima is just broken, and if you want to do these
sort of verification they need to happen inside the filesystem and n
Hi Jeff,
Thanks for reply.
On 2 July 2014 18:55, Jeff Moyer wrote:
> Hi, Dmitry,
>
> Dmitry Kasatkin writes:
>
>> Hi,
>>
>> We are looking for advice on reading files opened for direct_io.
>
> [snip]
>
>> 2. Temporarily clear O_DIRECT in file->f_flags.
>
> [snip]
>
>> 3. Open another instance o
Hi, Dmitry,
Dmitry Kasatkin writes:
> Hi,
>
> We are looking for advice on reading files opened for direct_io.
[snip]
> 2. Temporarily clear O_DIRECT in file->f_flags.
[snip]
> 3. Open another instance of the file with 'dentry_open'
[snip]
> Is temporarily clearing O_DIRECT flag really una
Hi,
We are looking for advice on reading files opened for direct_io.
IMA subsystem (security/integrity/ima) reads file content to kernel
buffer with kernel_read() like function to calculate a file hash.
It does not open another instance of 'struct file' but uses one
allocated via 'open' system ca
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