lkml.org 
[lkml]   [2011]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Kernel 3.1.0-rc4 oops when connecting iPod
On Sun, Sep 11, 2011 at 02:46:08PM +0100, Hin-Tak Leung wrote:
> > +?????* and difference between it
> > and alloc_blksz_shift will be always in
> > +?????* fs_shift.
> > +?????*/
> > +??? err =
> > generic_check_addressable(sb->s_blocksize_bits,
> > +??? ??? ???
> > (u64)sbi->total_blocks << sbi->fs_shift);
> > ??? if (err) {
> > ??? ??? printk(KERN_ERR
> > "hfs: filesystem size too large.\n");
> > ??? ??? goto out_free_vhdr;
>
> Why is the u64 needed? If it is needed, it probably means sbi->total_blocks should have been u64 in the first place.

No. When you shift values to the left they obviously become larger.
The total_blocks count on disk 32-bit so there is no need to store
it in a larger variable in the in-core superblock.


\
 
 \ /
  Last update: 2011-09-11 16:17    [W:0.066 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site