[PATCH 0/25] Sysfs cleanups & tagged directory support

Tejun Heo teheo at suse.de
Wed Aug 8 08:16:46 PDT 2007

Tejun Heo wrote:
> Eric W. Biederman wrote:
>> Tejun Heo <htejun at gmail.com> writes:
>>> Cornelia Huck wrote:
>>>> On Wed, 08 Aug 2007 23:35:36 +0900,
>>>> Tejun Heo <htejun at gmail.com> wrote:
>>>>> Does the attached patch happen to fix the problem?
>>>> Indeed it does; thanks!
>>> Yeah, you seem to have 32bit off_t.  UINT_MAX overflows, so...
>> Weird.  And we have it opening the directory O_LARGEFILE.
>> I have no problems with the fix though.
> It's probably because of struct dirent definition used by readdir().

More specifically, d_off field.  It's a bit twisted.  For the last
entry, filp->f_pos gets written into the field and gets wrapped while
being copied out to userland or in glibc.


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