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struct module; > struct request_queue; > @@ -268,10 +269,13 @@ static inline dev_t disk_devt(struct gendisk *disk) > return MKDEV(disk->major, disk->first_minor); > } > > +/* We should strive for 1 << (PAGE_SHIFT + MAX_PAGECACHE_ORDER) */ I fell that this comment can be reworked. I think that what we want to say is that hard limit is 1 << (PAGE_SHIFT + MAX_PAGECACHE_ORDER), but we set at sensible size of 64K. > +#define BLK_MAX_BLOCK_SIZE (SZ_64K) > +