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FITS: generating send-streams in portable format
This commit adds the command 'zfs fits-send', analogous to zfs send. The
generated send stream is compatible with the stream generated with that
from 'btrfs send' and can in principle easily be received to any filesystem.


 574         /* do deduplication */
 575         boolean_t dedup;
 576 
 577         /* send properties (ie, -p) */
 578         boolean_t props;
 579 
 580         /* do not send (no-op, ie. -n) */
 581         boolean_t dryrun;
 582 
 583         /* parsable verbose output (ie. -P) */
 584         boolean_t parsable;
 585 
 586         /* show progress (ie. -v) */
 587         boolean_t progress;
 588 } sendflags_t;
 589 
 590 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 591 
 592 extern int zfs_send(zfs_handle_t *, const char *, const char *,
 593     sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);


 594 
 595 extern int zfs_promote(zfs_handle_t *);
 596 extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t,
 597     boolean_t, boolean_t, int, uint64_t, uint64_t);
 598 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 599 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
 600 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 601 
 602 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 603     uid_t rid, uint64_t space);
 604 
 605 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
 606     zfs_userspace_cb_t, void *);
 607 
 608 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
 609 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
 610 
 611 typedef struct recvflags {
 612         /* print informational messages (ie, -v was specified) */
 613         boolean_t verbose;




 574         /* do deduplication */
 575         boolean_t dedup;
 576 
 577         /* send properties (ie, -p) */
 578         boolean_t props;
 579 
 580         /* do not send (no-op, ie. -n) */
 581         boolean_t dryrun;
 582 
 583         /* parsable verbose output (ie. -P) */
 584         boolean_t parsable;
 585 
 586         /* show progress (ie. -v) */
 587         boolean_t progress;
 588 } sendflags_t;
 589 
 590 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 591 
 592 extern int zfs_send(zfs_handle_t *, const char *, const char *,
 593     sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
 594 extern int zfs_fits_send(zfs_handle_t *, const char *, const char *,
 595     sendflags_t *, int, snapfilter_cb_t, void *);
 596 
 597 extern int zfs_promote(zfs_handle_t *);
 598 extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t,
 599     boolean_t, boolean_t, int, uint64_t, uint64_t);
 600 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 601 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
 602 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 603 
 604 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 605     uid_t rid, uint64_t space);
 606 
 607 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
 608     zfs_userspace_cb_t, void *);
 609 
 610 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
 611 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
 612 
 613 typedef struct recvflags {
 614         /* print informational messages (ie, -v was specified) */
 615         boolean_t verbose;