*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011 by Delphix. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
*/
/* Portions Copyright 2010 Robert Milkowski */
SET_BOOKMARK(&zb, bp->blk_cksum.zc_word[ZIL_ZC_OBJSET],
ZB_ZIL_OBJECT, ZB_ZIL_LEVEL, bp->blk_cksum.zc_word[ZIL_ZC_SEQ]);
- error = dsl_read_nolock(NULL, zilog->zl_spa, bp, arc_getbuf_func, &abuf,
+ error = arc_read(NULL, zilog->zl_spa, bp, arc_getbuf_func, &abuf,
ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb);
if (error == 0) {
SET_BOOKMARK(&zb, dmu_objset_id(zilog->zl_os), lr->lr_foid,
ZB_ZIL_LEVEL, lr->lr_offset / BP_GET_LSIZE(bp));
- error = arc_read_nolock(NULL, zilog->zl_spa, bp, arc_getbuf_func, &abuf,
+ error = arc_read(NULL, zilog->zl_spa, bp, arc_getbuf_func, &abuf,
ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb);
if (error == 0) {
}
/*
+ * Called when we create in-memory log transactions so that we know
+ * to cleanup the itxs at the end of spa_sync().
+ */
+void
+zilog_dirty(zilog_t *zilog, uint64_t txg)
+{
+ dsl_pool_t *dp = zilog->zl_dmu_pool;
+ dsl_dataset_t *ds = dmu_objset_ds(zilog->zl_os);
+
+ if (dsl_dataset_is_snapshot(ds))
+ panic("dirtying snapshot!");
+
+ if (txg_list_add(&dp->dp_dirty_zilogs, zilog, txg) == 0) {
+ /* up the hold count until we can be written out */
+ dmu_buf_add_ref(ds->ds_dbuf, zilog);
+ }
+}
+
+boolean_t
+zilog_is_dirty(zilog_t *zilog)
+{
+ dsl_pool_t *dp = zilog->zl_dmu_pool;
+ int t;
+
+ for (t = 0; t < TXG_SIZE; t++) {
+ if (txg_list_member(&dp->dp_dirty_zilogs, zilog, t))
+ return (B_TRUE);
+ }
+ return (B_FALSE);
+}
+
+/*
* Create an on-disk intent log.
*/
static lwb_t *
}
error = zio_alloc_zil(zilog->zl_spa, txg, &blk,
- ZIL_MIN_BLKSZ, zilog->zl_logbias == ZFS_LOGBIAS_LATENCY);
+ ZIL_MIN_BLKSZ, B_TRUE);
fastwrite = TRUE;
if (error == 0)
kmem_cache_free(zil_lwb_cache, lwb);
}
} else if (!keep_first) {
- (void) zil_parse(zilog, zil_free_log_block,
- zil_free_log_record, tx, zh->zh_claim_txg);
+ zil_destroy_sync(zilog, tx);
}
mutex_exit(&zilog->zl_lock);
dmu_tx_commit(tx);
}
+void
+zil_destroy_sync(zilog_t *zilog, dmu_tx_t *tx)
+{
+ ASSERT(list_is_empty(&zilog->zl_lwb_list));
+ (void) zil_parse(zilog, zil_free_log_block,
+ zil_free_log_record, tx, zilog->zl_header->zh_claim_txg);
+}
+
int
zil_claim(const char *osname, void *txarg)
{
};
/*
- * Use the slog as long as the logbias is 'latency' and the current commit size
- * is less than the limit or the total list size is less than 2X the limit.
- * Limit checking is disabled by setting zil_slog_limit to UINT64_MAX.
+ * Use the slog as long as the current commit size is less than the
+ * limit or the total list size is less than 2X the limit. Limit
+ * checking is disabled by setting zil_slog_limit to UINT64_MAX.
*/
unsigned long zil_slog_limit = 1024 * 1024;
-#define USE_SLOG(zilog) (((zilog)->zl_logbias == ZFS_LOGBIAS_LATENCY) && \
- (((zilog)->zl_cur_used < zil_slog_limit) || \
- ((zilog)->zl_itx_list_sz < (zil_slog_limit << 1))))
+#define USE_SLOG(zilog) (((zilog)->zl_cur_used < zil_slog_limit) || \
+ ((zilog)->zl_itx_list_sz < (zil_slog_limit << 1)))
/*
* Start a log block write and advance to the next log block.
return (NULL);
ASSERT(lwb->lwb_buf != NULL);
+ ASSERT(zilog_is_dirty(zilog) ||
+ spa_freeze_txg(zilog->zl_spa) != UINT64_MAX);
if (lrc->lrc_txtype == TX_WRITE && itx->itx_wr_state == WR_NEED_COPY)
dlen = P2ROUNDUP_TYPED(
lwb->lwb_nused += reclen + dlen;
lwb->lwb_max_txg = MAX(lwb->lwb_max_txg, txg);
ASSERT3U(lwb->lwb_nused, <=, lwb->lwb_sz);
- ASSERT3U(P2PHASE(lwb->lwb_nused, sizeof (uint64_t)), ==, 0);
+ ASSERT0(P2PHASE(lwb->lwb_nused, sizeof (uint64_t)));
return (lwb);
}
if ((itx->itx_lr.lrc_txtype & ~TX_CI) == TX_RENAME)
zil_async_to_sync(zilog, itx->itx_oid);
- if (spa_freeze_txg(zilog->zl_spa) != UINT64_MAX)
+ if (spa_freeze_txg(zilog->zl_spa) != UINT64_MAX)
txg = ZILTEST_TXG;
else
txg = dmu_tx_get_txg(tx);
}
itx->itx_lr.lrc_txg = dmu_tx_get_txg(tx);
+ zilog_dirty(zilog, txg);
mutex_exit(&itxg->itxg_lock);
/* Release the old itxs now we've dropped the lock */
/*
* If there are any in-memory intent log transactions which have now been
- * synced then start up a taskq to free them.
+ * synced then start up a taskq to free them. We should only do this after we
+ * have written out the uberblocks (i.e. txg has been comitted) so that
+ * don't inadvertently clean out in-memory log records that would be required
+ * by zil_commit().
*/
void
zil_clean(zilog_t *zilog, uint64_t synced_txg)
mutex_exit(&zilog->zl_lock);
if (txg)
txg_wait_synced(zilog->zl_dmu_pool, txg);
+ ASSERT(!zilog_is_dirty(zilog));
taskq_destroy(zilog->zl_clean_taskq);
zilog->zl_clean_taskq = NULL;
}
typedef struct zil_replay_arg {
- zil_replay_func_t **zr_replay;
+ zil_replay_func_t *zr_replay;
void *zr_arg;
boolean_t zr_byteswap;
char *zr_lr;
* If this dataset has a non-empty intent log, replay it and destroy it.
*/
void
-zil_replay(objset_t *os, void *arg, zil_replay_func_t *replay_func[TX_MAX_TYPE])
+zil_replay(objset_t *os, void *arg, zil_replay_func_t replay_func[TX_MAX_TYPE])
{
zilog_t *zilog = dmu_objset_zil(os);
const zil_header_t *zh = zilog->zl_header;