#define BIO_MAX_VECS 256U
typedef unsigned fmode_t;
+typedef __u32 __bitwise blk_opf_t;
struct bio;
struct user_namespace;
#define FMODE_32BITHASH ((__force fmode_t)0x200)
/* 64bit hashes as llseek() offset (for directories) */
#define FMODE_64BITHASH ((__force fmode_t)0x400)
+#define FMODE_BUFFERED ((__force fmode_t)0x800)
struct inode {
unsigned long i_ino;
}
int blkdev_issue_discard(struct block_device *, sector_t, sector_t, gfp_t);
+int blkdev_issue_zeroout(struct block_device *, sector_t, sector_t, gfp_t, unsigned);
#define bdev_get_queue(bdev) (&((bdev)->queue))