Re: why UDF have so ugly filesize limit?

> from fs/udf/super.c:
> in function udf_fill_super
> sb->s_maxbytes = 1<<30; (1 GB)
> 
> Why sb->s_maxbytes is not equal to MAX_LFS_FILESIZE?
  Because UDF had some flaws and user could crash a kernel with larger
filesize. In -mm kernel are patches fixing the flaw and also raising the
limit back to MAX_LFS_FILESIZE.

> So, in include/linux/fs.h written that the filesystems should put that
> (MAX_LFS_FILESIZE) into their s_maxbytes, otherwise bad things can
> happen in VM.
  Bad things can happen only if you set it to more than
MAX_LFS_FILESIZE. With smaller values only users are disappointed ;).

								Honza
-- 
Jan Kara <[email protected]>
SuSE CR Labs
-
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/

---

• References:
  • why UDF have so ugly filesize limit?
    • From: "Marat Buharov" <[email protected]>

• Prev by Date: Re: Acecad USB Tablet: usbmouse takeover and odd motion
• Next by Date: Re: [PATCH] lazy freeing of memory through MADV_FREE
• Previous by thread: Re: why UDF have so ugly filesize limit?
• Next by thread: Re: [ckrm-tech] About I/O scheduler in CKRM
• 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]