diff options
| author | Saso Kiselkov <[email protected]> | 2013-08-01 13:02:10 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2013-08-08 13:27:21 -0700 |
| commit | 3a17a7a99a1a6332d0999f9be68e2b8dc3933de1 (patch) | |
| tree | 6f926bc52a8ae98a69d4b258e66bde381fa691fa /module/zfs/dmu_objset.c | |
| parent | c11a12bc3b2e5ee9a6bd74e26f1a396b6025fbd4 (diff) | |
Illumos #3137 L2ARC compression
3137 L2ARC compression
Reviewed by: George Wilson <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Approved by: Dan McDonald <[email protected]>
References:
illumos/illumos-gate@aad02571bc59671aa3103bb070ae365f531b0b62
https://www.illumos.org/issues/3137
http://wiki.illumos.org/display/illumos/L2ARC+Compression
Notes for Linux port:
A l2arc_nocompress module option was added to prevent the
compression of l2arc buffers regardless of how a dataset's
compression property is set. This allows the legacy behavior
to be preserved.
Ported by: James H <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #1379
Diffstat (limited to 'module/zfs/dmu_objset.c')
| -rw-r--r-- | module/zfs/dmu_objset.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/module/zfs/dmu_objset.c b/module/zfs/dmu_objset.c index ca75e525b..52d55d566 100644 --- a/module/zfs/dmu_objset.c +++ b/module/zfs/dmu_objset.c @@ -20,6 +20,7 @@ */ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. */ /* Portions Copyright 2010 Robert Milkowski */ @@ -274,6 +275,8 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, if (DMU_OS_IS_L2CACHEABLE(os)) aflags |= ARC_L2CACHE; + if (DMU_OS_IS_L2COMPRESSIBLE(os)) + aflags |= ARC_L2COMPRESS; dprintf_bp(os->os_rootbp, "reading %s", ""); err = arc_read(NULL, spa, os->os_rootbp, @@ -1119,9 +1122,10 @@ dmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx) dmu_write_policy(os, NULL, 0, 0, &zp); zio = arc_write(pio, os->os_spa, tx->tx_txg, - os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os), &zp, - dmu_objset_write_ready, dmu_objset_write_done, os, - ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); + os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os), + DMU_OS_IS_L2COMPRESSIBLE(os), &zp, dmu_objset_write_ready, + dmu_objset_write_done, os, ZIO_PRIORITY_ASYNC_WRITE, + ZIO_FLAG_MUSTSUCCEED, &zb); /* * Sync special dnodes - the parent IO for the sync is the root block |