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3740 Poor ZFS send / receive performance due to snapshot hold / release processing
Submitted by: Steven Hartland <steven.hartland@multiplay.co.uk>

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          --- old/usr/src/lib/libzfs/common/libzfs.h
          +++ new/usr/src/lib/libzfs/common/libzfs.h
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 587  587          boolean_t progress;
 588  588  } sendflags_t;
 589  589  
 590  590  typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 591  591  
 592  592  extern int zfs_send(zfs_handle_t *, const char *, const char *,
 593  593      sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
 594  594  
 595  595  extern int zfs_promote(zfs_handle_t *);
 596  596  extern int zfs_hold(zfs_handle_t *, const char *, const char *,
 597      -    boolean_t, boolean_t, int);
      597 +    boolean_t, int);
      598 +extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *);
 598  599  extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 599  600  extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
 600  601  extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 601  602  
 602  603  typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 603  604      uid_t rid, uint64_t space);
 604  605  
 605  606  extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
 606  607      zfs_userspace_cb_t, void *);
 607  608  
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