diff options
Diffstat (limited to 'module/zfs/dmu.c')
| -rw-r--r-- | module/zfs/dmu.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c index 45304e7dd..d6a9f813c 100644 --- a/module/zfs/dmu.c +++ b/module/zfs/dmu.c @@ -549,14 +549,14 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length, ZIO_FLAG_CANFAIL); blkid = dbuf_whichblock(dn, 0, offset); if ((flags & DMU_READ_NO_PREFETCH) == 0 && - DNODE_META_IS_CACHEABLE(dn) && length <= zfetch_array_rd_sz) { + length <= zfetch_array_rd_sz) { /* * Prepare the zfetch before initiating the demand reads, so * that if multiple threads block on same indirect block, we * base predictions on the original less racy request order. */ - zs = dmu_zfetch_prepare(&dn->dn_zfetch, blkid, nblks, - read && DNODE_IS_CACHEABLE(dn), B_TRUE); + zs = dmu_zfetch_prepare(&dn->dn_zfetch, blkid, nblks, read, + B_TRUE); } for (i = 0; i < nblks; i++) { dmu_buf_impl_t *db = dbuf_hold(dn, blkid + i, tag); @@ -579,6 +579,14 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length, * state will not yet be CACHED. */ if (read) { + if (i == nblks - 1 && blkid + i < dn->dn_maxblkid && + offset + length < db->db.db_offset + + db->db.db_size) { + if (offset <= db->db.db_offset) + dbuf_flags |= DB_RF_PARTIAL_FIRST; + else + dbuf_flags |= DB_RF_PARTIAL_MORE; + } (void) dbuf_read(db, zio, dbuf_flags); if (db->db_state != DB_CACHED) missed = B_TRUE; @@ -1850,8 +1858,8 @@ dmu_sync(zio_t *pio, uint64_t txg, dmu_sync_cb_t *done, zgd_t *zgd) dsa->dsa_zgd = zgd; dsa->dsa_tx = NULL; - zio_nowait(arc_write(pio, os->os_spa, txg, - zgd->zgd_bp, dr->dt.dl.dr_data, dbuf_is_l2cacheable(db), + zio_nowait(arc_write(pio, os->os_spa, txg, zgd->zgd_bp, + dr->dt.dl.dr_data, !DBUF_IS_CACHEABLE(db), dbuf_is_l2cacheable(db), &zp, dmu_sync_ready, NULL, NULL, dmu_sync_done, dsa, ZIO_PRIORITY_SYNC_WRITE, ZIO_FLAG_CANFAIL, &zb)); |