On Wed 05-05-10 17:17:19, Artem Bityutskiy wrote: > On Wed, 2010-05-05 at 11:21 +0300, Kirill A. Shutemov wrote: > > We cannot modify file->f_mapping->backing_dev_info, because it will corrupt > > backing device of device node inode, since file->f_mapping is equal to > > inode->i_mapping (see __dentry_open() in fs/open.c). > > > > Let's introduce separate inode for MTD device with appropriate backing > > device. > > > > Signed-off-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> > > Acked-by: Jan Kara <jack@xxxxxxx> > > I get the following build error: > > [dedekind@eru l2-mtd-2.6]$ make -j8 > O=/home/dedekind/tmp/l2-mtd-2.6-x86_64/ > GEN /home/dedekind/tmp/l2-mtd-2.6-x86_64/Makefile > CHK include/linux/version.h > CHK include/generated/utsrelease.h > Using /home/dedekind/git/l2-mtd-2.6 as source for kernel > CALL /home/dedekind/git/l2-mtd-2.6/scripts/checksyscalls.sh > CHK include/generated/compile.h > CHK include/linux/version.h > make[3]: `scripts/unifdef' is up to date. > Building modules, stage 2. > Kernel: arch/x86/boot/bzImage is ready (#2) > MODPOST 146 modules > ERROR: "__iget" [drivers/mtd/mtdchar.ko] undefined! > ERROR: "inode_lock" [drivers/mtd/mtdchar.ko] undefined! > make[2]: *** [__modpost] Error 1 > make[1]: *** [modules] Error 2 > make: *** [sub-make] Error 2 > > __iget and inode_lock are not exported... Ah, right. igrab() should be used instead of __iget inside the inode_lock. Honza -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
