diff options
| author | Brian Behlendorf <[email protected]> | 2009-02-18 12:51:31 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2009-02-18 12:51:31 -0800 |
| commit | d164b2093561a9771db07346e6fffc9ca19427a2 (patch) | |
| tree | b24adaf8695cebdd827968ac1df3cc0093936be1 /module/zfs/dnode_sync.c | |
| parent | c65e71073f45e6e549c825969740cb15a96ea547 (diff) | |
Rebase master to b108
Diffstat (limited to 'module/zfs/dnode_sync.c')
| -rw-r--r-- | module/zfs/dnode_sync.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/module/zfs/dnode_sync.c b/module/zfs/dnode_sync.c index 779cfc96f..23dcb4c7b 100644 --- a/module/zfs/dnode_sync.c +++ b/module/zfs/dnode_sync.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #include <sys/dbuf.h> #include <sys/dnode.h> @@ -532,18 +530,12 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) /* XXX shouldn't the phys already be zeroed? */ bzero(dnp, DNODE_CORE_SIZE); dnp->dn_nlevels = 1; + dnp->dn_nblkptr = dn->dn_nblkptr; } - if (dn->dn_nblkptr > dnp->dn_nblkptr) { - /* zero the new blkptrs we are gaining */ - bzero(dnp->dn_blkptr + dnp->dn_nblkptr, - sizeof (blkptr_t) * - (dn->dn_nblkptr - dnp->dn_nblkptr)); - } dnp->dn_type = dn->dn_type; dnp->dn_bonustype = dn->dn_bonustype; dnp->dn_bonuslen = dn->dn_bonuslen; - dnp->dn_nblkptr = dn->dn_nblkptr; } ASSERT(dnp->dn_nlevels > 1 || @@ -603,6 +595,30 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) return; } + if (dn->dn_next_nblkptr[txgoff]) { + /* this should only happen on a realloc */ + ASSERT(dn->dn_allocated_txg == tx->tx_txg); + if (dn->dn_next_nblkptr[txgoff] > dnp->dn_nblkptr) { + /* zero the new blkptrs we are gaining */ + bzero(dnp->dn_blkptr + dnp->dn_nblkptr, + sizeof (blkptr_t) * + (dn->dn_next_nblkptr[txgoff] - dnp->dn_nblkptr)); +#ifdef ZFS_DEBUG + } else { + int i; + ASSERT(dn->dn_next_nblkptr[txgoff] < dnp->dn_nblkptr); + /* the blkptrs we are losing better be unallocated */ + for (i = dn->dn_next_nblkptr[txgoff]; + i < dnp->dn_nblkptr; i++) + ASSERT(BP_IS_HOLE(&dnp->dn_blkptr[i])); +#endif + } + mutex_enter(&dn->dn_mtx); + dnp->dn_nblkptr = dn->dn_next_nblkptr[txgoff]; + dn->dn_next_nblkptr[txgoff] = 0; + mutex_exit(&dn->dn_mtx); + } + if (dn->dn_next_nlevels[txgoff]) { dnode_increase_indirection(dn, tx); dn->dn_next_nlevels[txgoff] = 0; |