> @@ -393,6 +394,7 @@ struct address_space { > gfp_t gfp_mask; /* implicit gfp mask for > allocations */ > struct list_head private_list; /* ditto */ > void *private_data; /* ditto */ > + errseq_t wb_err; > } __attribute__((aligned(sizeof(long)))); > /* > * On most architectures that alignment is already the case; but > @@ -847,6 +849,7 @@ struct file { > * Must not be taken from IRQ context. > */ > spinlock_t f_lock; > + errseq_t f_wb_err; > atomic_long_t f_count; > unsigned int f_flags; > fmode_t f_mode;
Did you check the sizes of the structure before and after? These places don't look like holes in the packing, but there probably are some available. > +static inline int filemap_check_wb_err(struct address_space *mapping, > errseq_t since) Overly long line here (the patch has a few more) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html