From: Christoph Hellwig <hch@infradead.org>
To: Hin-Tak Leung <hintak_leung@yahoo.co.uk>
Cc: Pavel Ivanov <paivanof@gmail.com>,
linux-fsdevel@vger.kernel.org,
linux-kernel <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@tuxera.com>
Subject: Re: Kernel 3.1.0-rc4 oops when connecting iPod
Date: Sun, 11 Sep 2011 10:14:26 -0400 [thread overview]
Message-ID: <20110911141426.GC23339@infradead.org> (raw)
In-Reply-To: <1315748768.65310.YahooMailClassic@web29513.mail.ird.yahoo.com>
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.
next prev parent reply other threads:[~2011-09-11 14:14 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-03 3:08 Kernel 3.1.0-rc4 oops when connecting iPod Pavel Ivanov
2011-09-03 3:59 ` Hin-Tak Leung
2011-09-03 3:59 ` Hin-Tak Leung
2011-09-03 4:37 ` Pavel Ivanov
2011-09-03 6:57 ` Hin-Tak Leung
2011-09-03 20:52 ` Pavel Ivanov
2011-09-03 20:52 ` Pavel Ivanov
2011-09-03 23:35 ` Hin-Tak Leung
2011-09-03 23:35 ` Hin-Tak Leung
2011-09-03 23:59 ` Pavel Ivanov
2011-09-03 23:59 ` Pavel Ivanov
2011-09-04 0:37 ` Hin-Tak Leung
2011-09-06 4:35 ` Pavel Ivanov
2011-09-06 4:35 ` Pavel Ivanov
2011-09-06 5:12 ` Hin-Tak Leung
2011-09-06 5:12 ` Hin-Tak Leung
2011-09-06 15:09 ` Pavel Ivanov
2011-09-06 15:09 ` Pavel Ivanov
2011-09-11 3:52 ` Pavel Ivanov
2011-09-11 3:52 ` Pavel Ivanov
2011-09-11 13:46 ` Hin-Tak Leung
2011-09-11 13:46 ` Hin-Tak Leung
2011-09-11 14:14 ` Christoph Hellwig [this message]
2011-09-11 14:12 ` Christoph Hellwig
2011-09-12 14:34 ` Christoph Hellwig
2011-09-12 15:19 ` Pavel Ivanov
2011-09-12 15:19 ` Pavel Ivanov
2011-09-12 15:31 ` Christoph Hellwig
2011-09-13 2:20 ` Pavel Ivanov
2011-09-13 2:20 ` Pavel Ivanov
2011-09-14 17:42 ` Christoph Hellwig
2011-09-15 14:35 ` Christoph Hellwig
2011-09-12 15:57 ` Hin-Tak Leung
2011-09-07 17:59 ` Seth Forshee
2011-09-07 17:59 ` Seth Forshee
2011-09-08 3:13 ` Hin-Tak Leung
2011-09-08 3:13 ` Hin-Tak Leung
2011-09-08 16:23 ` Seth Forshee
2011-09-09 12:48 ` Christoph Hellwig
2011-09-11 3:32 ` Pavel Ivanov
2011-09-11 3:32 ` Pavel Ivanov
2011-09-11 14:10 ` Christoph Hellwig
2011-09-12 14:00 ` Pavel Ivanov
2011-09-12 15:27 ` [PATCH] hfsplus: Fix kfree of wrong vhdr pointers Seth Forshee
2011-09-12 15:28 ` Christoph Hellwig
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