Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems

On May 22 2007 08:43, Bharata B Rao wrote:
>On Fri, May 18, 2007 at 09:47:31AM -0400, Shaya Potter wrote:
>> Bharata B Rao wrote:
>> 
>> >
>> >Not really. This is called during copyup of a file residing in a lower
>> >layer. And that is done only for regular files.
>> 
>> That is broken.
>
>But it only breaks the semantics (in other cases we allow writes only to the
>top layer files). So the question is why do we have to copy up the device
>node ? What difference it makes to writing to the device itself ?

Because `chmod 666 blockdevnode` is not the same as writing
to the device itself?

>Currently we allow write to the device using the lower layer device node
>itself.


	Jan
-- 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
    • From: Bharata B Rao <[email protected]>

• References:
  • [RFC][PATCH 0/14] VFS based Union Mount(v1)
    • From: Bharata B Rao <[email protected]>
  • [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
    • From: Bharata B Rao <[email protected]>
  • Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
    • From: Jan Engelhardt <[email protected]>
  • Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
    • From: Bharata B Rao <[email protected]>
  • Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
    • From: Shaya Potter <[email protected]>
  • Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
    • From: Bharata B Rao <[email protected]>

• Prev by Date: Re: [rfc] increase struct page size?!
• Next by Date: Re: [PATCH] Prevent going idle with softirq pending
• Previous by thread: Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
• Next by thread: Re: [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]