Hi, > I am reporting a suspected data race bug from ext3/xattr.c in Linux 2.6.31. Thank you for your report. > In ext3_xattr_block_set(), it accesses bs->bh->b_data > while it does not hold lock_buffer(bs->bh). > > However, there is no lock_buffer(bs->bh) and unlock_buffer(bs->bh) > for guarding the access (at line 794). Yes, but we don't really look at the content of bs->bh->b_data. We just compare the pointers and for that we definitely don't need the lock. So I don't see problem. If you still do, please tell me more details (like a sample of code executions of two threads which race). Thanks. Honza -- Jan Kara <jack@xxxxxxx> SuSE CR Labs -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
