Hi,
this is my try for implementing the llseek operation on raw devices. The
reason is that lseek does a check on the limits of the undlying
filesystem and thus tends to err where the real device lies. Lseek check
takes the /dev/raw/rawX filesystem as limiting factor, not the device
that is bound
Hi,
this is my try for implementing the llseek operation on raw devices. The
reason is that lseek does a check on the limits of the undlying
filesystem and thus tends to err where the real device lies. Lseek check
takes the /dev/raw/rawX filesystem as limiting factor, not the device
that is bound
Alan Cox wrote:
>
> > I set up a raw device: raw /dev/raw/raw1 /dev/hdd
> > with /dev/hdd being my DVD drive.
> > Xine then does repeated llseeks on /dev/raw/raw1 until it gets above 4G.
> > Because /dev/raw/raw1 and the associated /dev/hdd both are on reiserfs,
> > and reiserfs has a 4G limit,
ok,
I found my problem. As previously said, I'm on reiser. Which (obviously)
has a file size limit of 4GB set in the superblock. Llseek only allows
seek offsets which are smaller than the allowed file size. What happens
is:
I set up a raw device: raw /dev/raw/raw1 /dev/hdd
with /dev/hdd being my
Well, I looked a bit deeper into it. The limiting factor is the
s_maxbytes value from the superblock. (If the offset is larger than
s_maxbytes, default_llseek will return EINVAL, what I'm seeing), So,
where does it inherit this value from? My fs is reiserfs, so there's a
4GB limit. But the raw
Well, I looked a bit deeper into it. The limiting factor is the
s_maxbytes value from the superblock. (If the offset is larger than
s_maxbytes, default_llseek will return EINVAL, what I'm seeing), So,
where does it inherit this value from? My fs is reiserfs, so there's a
4GB limit. But the raw
ok,
I found my problem. As previously said, I'm on reiser. Which (obviously)
has a file size limit of 4GB set in the superblock. Llseek only allows
seek offsets which are smaller than the allowed file size. What happens
is:
I set up a raw device: raw /dev/raw/raw1 /dev/hdd
with /dev/hdd being my
Alan Cox wrote:
I set up a raw device: raw /dev/raw/raw1 /dev/hdd
with /dev/hdd being my DVD drive.
Xine then does repeated llseeks on /dev/raw/raw1 until it gets above 4G.
Because /dev/raw/raw1 and the associated /dev/hdd both are on reiserfs,
and reiserfs has a 4G limit, llseek
[EMAIL PROTECTED] wrote:
>
> Alan Cox wrote:
> >
> > > sorry if this was already discussed, but I couldn't find it in the
> > > archives. I'm trying to use xine (the linux dvd player) on
> > > linux-2.4.3-ac3 and can't watch the whole dvd. The reason is that as
> > > soon as the llseek sets a
Alan Cox wrote:
>
> > sorry if this was already discussed, but I couldn't find it in the
> > archives. I'm trying to use xine (the linux dvd player) on
> > linux-2.4.3-ac3 and can't watch the whole dvd. The reason is that as
> > soon as the llseek sets a value in the offset_high field for
Hi,
sorry if this was already discussed, but I couldn't find it in the
archives. I'm trying to use xine (the linux dvd player) on
linux-2.4.3-ac3 and can't watch the whole dvd. The reason is that as
soon as the llseek sets a value in the offset_high field for sys_llseek,
I get a EINVAL back from
Hi,
sorry if this was already discussed, but I couldn't find it in the
archives. I'm trying to use xine (the linux dvd player) on
linux-2.4.3-ac3 and can't watch the whole dvd. The reason is that as
soon as the llseek sets a value in the offset_high field for sys_llseek,
I get a EINVAL back from
Alan Cox wrote:
sorry if this was already discussed, but I couldn't find it in the
archives. I'm trying to use xine (the linux dvd player) on
linux-2.4.3-ac3 and can't watch the whole dvd. The reason is that as
soon as the llseek sets a value in the offset_high field for sys_llseek,
I
[EMAIL PROTECTED] wrote:
Alan Cox wrote:
sorry if this was already discussed, but I couldn't find it in the
archives. I'm trying to use xine (the linux dvd player) on
linux-2.4.3-ac3 and can't watch the whole dvd. The reason is that as
soon as the llseek sets a value in the
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