Re: [PATCH v2] isofs: Fix lseek() to position beyond 4 GB

[Jan Kara]

On Wed 04-08-10 22:52:46, Jan Andres wrote:
> isofs supports files larger than 4 GB by using multi-extent files.
> However an lseek() to a position beyond 4 GB in such a file will
> fail with EINVAL, because s_maxbytes in the isofs superblock is
> initialized to 2^32-1, and generic_file_llseek() checks against
> that value.
> 
> I therefore suggest increasing the value of s_maxbytes to have
> full support for large files in isofs. With multi-extent files, file
> size is only limited by the maximum size of the file system (8 TB),
> so this seems a reasonable value for s_maxbytes.
  OK, I had a look into the relevant code and it seems that the isofs
code should properly handle files upto 4TB and with a small fix (attached)
upto 8TB as you claim. So I'll take your patch and merge it with Linus.

								Honza

-- 
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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