Mercurial > illumos > illumos-gate
diff usr/src/uts/common/fs/zfs/dnode.c @ 13973:4972ab336f54
3464 zfs synctask code needs restructuring
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>
| author | Matthew Ahrens <mahrens@delphix.com> |
|---|---|
| date | Thu, 28 Feb 2013 12:44:05 -0800 |
| parents | e3a9ae14a119 |
| children | d7059eb1884c |
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--- a/usr/src/uts/common/fs/zfs/dnode.c Wed Feb 27 21:13:42 2013 +0100 +++ b/usr/src/uts/common/fs/zfs/dnode.c Thu Feb 28 12:44:05 2013 -0800 @@ -72,7 +72,11 @@ mutex_init(&dn->dn_dbufs_mtx, NULL, MUTEX_DEFAULT, NULL); cv_init(&dn->dn_notxholds, NULL, CV_DEFAULT, NULL); - refcount_create(&dn->dn_holds); + /* + * Every dbuf has a reference, and dropping a tracked reference is + * O(number of references), so don't track dn_holds. + */ + refcount_create_untracked(&dn->dn_holds); refcount_create(&dn->dn_tx_holds); list_link_init(&dn->dn_link);