2.6.39 Kernel Changes for FileSystem, get_sb removed
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. +[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 Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: 2.6.39 Kernel Changes for FileSystem, get_sb removed
On Tue, Sep 20, 2011 at 5:14 PM, Abhijit Pawar apawar.li...@gmail.comwrote: 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. +[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 Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies Hi Abhijit, Yes you have to make use of mount function pointer in the struct file_system_type. NOTE : - change is only in one parameter of type struct vfsmount which is basically removed from this function pointer. Regards, Rohan Puri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: 2.6.39 Kernel Changes for FileSystem, get_sb removed
On 09/20/2011 05:14 PM, Abhijit Pawar 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. +[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 I have modified the code to use the mount function and its working correctly. There is one more change I noticed for struct address_space_operations: The sync_page is removed. The code is working now. Regards, Abhijit Pawar ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: 2.6.39 Kernel Changes for FileSystem, get_sb removed
On 09/20/2011 05:50 PM, rohan puri wrote: On Tue, Sep 20, 2011 at 5:14 PM, Abhijit Pawar apawar.li...@gmail.com mailto:apawar.li...@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. +[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 Kernelnewbies@kernelnewbies.org mailto:Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies Hi Abhijit, Yes you have to make use of mount function pointer in the struct file_system_type. NOTE : - change is only in one parameter of type struct vfsmount which is basically removed from this function pointer. Regards, 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. Regards, Abhijit Pawar ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: 2.6.39 Kernel Changes for FileSystem, get_sb removed
On Tue, Sep 20, 2011 at 5:54 PM, Abhijit Pawar apawar.li...@gmail.comwrote: On 09/20/2011 05:50 PM, rohan puri wrote: On Tue, Sep 20, 2011 at 5:14 PM, Abhijit Pawar apawar.li...@gmail.comwrote: 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. +[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 Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies Hi Abhijit, Yes you have to make use of mount function pointer in the struct file_system_type. NOTE : - change is only in one parameter of type struct vfsmount which is basically removed from this function pointer. Regards, 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. Regards, Abhijit Pawar Welcome :) ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: 2.6.39 Kernel Changes for FileSystem, get_sb removed
Hi Abhijit, On Tue, Sep 20, 2011 at 5:14 PM, Abhijit Pawar apawar.li...@gmail.comwrote: 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 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#L144http://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 Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -- Regards, Kashish ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
