diff options
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c | 10 | ||||
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c | 20 | ||||
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c | 4 |
3 files changed, 28 insertions, 6 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c index 133343b8936c..26b4e5f5a855 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c @@ -192,7 +192,7 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length, ASSERT(length <= DMU_MAX_ACCESS); - dbuf_flags = DB_RF_CANFAIL | DB_RF_NEVERWAIT; + dbuf_flags = DB_RF_CANFAIL | DB_RF_NEVERWAIT | DB_RF_HAVESTRUCT; if (flags & DMU_READ_NO_PREFETCH || length > zfetch_array_rd_sz) dbuf_flags |= DB_RF_NOPREFETCH; @@ -209,6 +209,7 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length, os_dsl_dataset->ds_object, (longlong_t)dn->dn_object, dn->dn_datablksz, (longlong_t)offset, (longlong_t)length); + rw_exit(&dn->dn_struct_rwlock); return (EIO); } nblks = 1; @@ -231,9 +232,7 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length, } /* initiate async i/o */ if (read) { - rw_exit(&dn->dn_struct_rwlock); (void) dbuf_read(db, zio, dbuf_flags); - rw_enter(&dn->dn_struct_rwlock, RW_READER); } dbp[i] = &db->db; } @@ -540,7 +539,7 @@ dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, { dnode_t *dn; dmu_buf_t **dbp; - int numbufs, i, err; + int numbufs, err; err = dnode_hold(os->os, object, FTAG, &dn); if (err) @@ -551,7 +550,7 @@ dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, * block. If we ever do the tail block optimization, we will need to * handle that here as well. */ - if (dn->dn_datablkshift == 0) { + if (dn->dn_maxblkid == 0) { int newsz = offset > dn->dn_datablksz ? 0 : MIN(size, dn->dn_datablksz - offset); bzero((char *)buf + newsz, size - newsz); @@ -560,6 +559,7 @@ dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, while (size > 0) { uint64_t mylen = MIN(size, DMU_MAX_ACCESS / 2); + int i; /* * NB: we could do this block-at-a-time, but it's nice diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c index bcbe514ad7aa..ba0f0eb48717 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c @@ -1031,6 +1031,10 @@ zfs_get_done(dmu_buf_t *db, void *vzgd) VFS_UNLOCK_GIANT(vfslocked); } +#ifdef DEBUG +static int zil_fault_io = 0; +#endif + /* * Get data to generate a TX_WRITE intent log record. */ @@ -1112,7 +1116,21 @@ zfs_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) zgd->zgd_rl = rl; zgd->zgd_zilog = zfsvfs->z_log; zgd->zgd_bp = &lr->lr_blkptr; - VERIFY(0 == dmu_buf_hold(os, lr->lr_foid, boff, zgd, &db)); +#ifdef DEBUG + if (zil_fault_io) { + error = EIO; + zil_fault_io = 0; + } else { + error = dmu_buf_hold(os, lr->lr_foid, boff, zgd, &db); + } +#else + error = dmu_buf_hold(os, lr->lr_foid, boff, zgd, &db); +#endif + if (error != 0) { + kmem_free(zgd, sizeof (zgd_t)); + goto out; + } + ASSERT(boff == db->db_offset); lr->lr_blkoff = off - boff; error = dmu_sync(zio, db, &lr->lr_blkptr, diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c index 1dd8ea0980a2..490e50fbb94c 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c @@ -933,6 +933,10 @@ zil_lwb_commit(zilog_t *zilog, itx_t *itx, lwb_t *lwb) } error = zilog->zl_get_data( itx->itx_private, lr, dbuf, lwb->lwb_zio); + if (error == EIO) { + txg_wait_synced(zilog->zl_dmu_pool, txg); + return (lwb); + } if (error) { ASSERT(error == ENOENT || error == EEXIST || error == EALREADY); |