On Tue, Sep 20, 2011 at 6:46 PM, kashish bhatia <[email protected]> wrote:
> Hi Abhijit, > > On Tue, Sep 20, 2011 at 5:14 PM, Abhijit Pawar <[email protected]>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. >> >> > The function "get_sb()" is still present in security/inode.c in kernel > 2.6.39. Only the function pointer of get_sb() has been removed from > The name they have kept is the same in security/inode.c but you can compare the prototype to earlier kernel versions. They will be different. Also its assigned to mount function pointer field of struct file_system_type. > struct file_system_type in /include/linux/fs.h. > > 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. >> >> > Yes , you are supposed to use mount function. > visit the following link : > http://lxr.linux.no/#linux+v2.6.39/security/inode.c#L144<http://lxr.linux.no/#linux+v2.6.39/security/inode.c%23L144> > > +[mandatory] >> + ->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. >> >> >> Regards, >> Abhijit Pawar >> >> _______________________________________________ >> Kernelnewbies mailing list >> [email protected] >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> > > > -- > Regards, > Kashish > > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > Regards, Rohan Puri
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