2.6.39 Kernel Changes for FileSystem, get_sb removed
apawar.linux at gmail.com
Tue Sep 20 08:24:07 EDT 2011
On 09/20/2011 05:50 PM, rohan puri wrote:
> On Tue, Sep 20, 2011 at 5:14 PM, Abhijit Pawar <apawar.linux at gmail.com
> <mailto:apawar.linux at gmail.com>> wrote:
> Hi list,
> It seems that the support for get_sb function is removed from
> kernel 2.6.39 onwards. My code which is working till 2.6.38 series
> is failing with new kernels.
> I tried finding out but there isnt anything mentioned. So if this
> function itself is removed then how kernel is going to find out
> the superblock and use it?
> Are we supposed to use the mount function provided? This is what i
> got from one of the kernel patch email.
> + ->get_sb() is gone. Switch to use of ->mount(). Typically it's just
> +a matter of switching from calling get_sb_... to mount_... and changing the
> +function type. If you were doing it manually, just switch from setting ->mnt_root
> +to some pointer to returning that pointer. On errors return ERR_PTR(...).
> diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
> It looks like there are other changes related to Pages are also done.
> Abhijit Pawar
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> <mailto:Kernelnewbies at kernelnewbies.org>
> Hi Abhijit,
> Yes you have to make use of mount function pointer in the struct
> NOTE : - change is only in one parameter of type struct vfsmount which
> is basically removed from this function pointer.
> Rohan Puri
Thanks Rohan. Yes, i have made the changes and things are looking good.
struct address_space_operation's sync_page is also removed.
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