Date: Sat, 3 Oct 2015 11:17:32 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r288587 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201510031117.t93BHW6K061795@repo.freebsd.org>
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Author: mav Date: Sat Oct 3 11:17:31 2015 New Revision: 288587 URL: https://svnweb.freebsd.org/changeset/base/288587 Log: MFC r286776: Remove some random accumulated diff from Illumos. Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c ============================================================================== --- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Sat Oct 3 11:16:42 2015 (r288586) +++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Sat Oct 3 11:17:31 2015 (r288587) @@ -2416,6 +2416,7 @@ arc_hdr_destroy(arc_buf_hdr_t *hdr) if (!BUF_EMPTY(hdr)) buf_discard_identity(hdr); + if (hdr->b_freeze_cksum != NULL) { kmem_free(hdr->b_freeze_cksum, sizeof (zio_cksum_t)); hdr->b_freeze_cksum = NULL; @@ -4658,8 +4659,6 @@ arc_release(arc_buf_t *buf, void *tag) { arc_buf_hdr_t *hdr = buf->b_hdr; - ASSERT(HDR_HAS_L1HDR(hdr)); - /* * It would be nice to assert that if it's DMU metadata (level > * 0 || it's the dnode file), then it must be syncing context. @@ -4667,6 +4666,9 @@ arc_release(arc_buf_t *buf, void *tag) */ mutex_enter(&buf->b_evict_lock); + + ASSERT(HDR_HAS_L1HDR(hdr)); + /* * We don't grab the hash lock prior to this check, because if * the buffer's header is in the arc_anon state, it won't be @@ -5897,6 +5899,7 @@ top: /* * Error - drop L2ARC entry. */ + list_remove(buflist, hdr); trim_map_free(hdr->b_l2hdr.b_dev->l2ad_vdev, hdr->b_l2hdr.b_daddr, hdr->b_l2hdr.b_asize, 0); hdr->b_flags &= ~ARC_FLAG_HAS_L2HDR; @@ -6437,14 +6440,6 @@ l2arc_write_buffers(spa_t *spa, l2arc_de buf_sz = hdr->b_l2hdr.b_asize; /* - * If the data has not been compressed, then clear b_tmp_cdata - * to make sure that it points only to a temporary compression - * buffer. - */ - if (!L2ARC_IS_VALID_COMPRESS(HDR_GET_COMPRESS(hdr))) - hdr->b_l1hdr.b_tmp_cdata = NULL; - - /* * We need to do this regardless if buf_sz is zero or * not, otherwise, when this l2hdr is evicted we'll * remove a reference that was never added. @@ -6537,6 +6532,12 @@ l2arc_compress_buf(arc_buf_hdr_t *hdr) csize = zio_compress_data(ZIO_COMPRESS_LZ4, hdr->b_l1hdr.b_tmp_cdata, cdata, l2hdr->b_asize); + rounded = P2ROUNDUP(csize, (size_t)SPA_MINBLOCKSIZE); + if (rounded > csize) { + bzero((char *)cdata + csize, rounded - csize); + csize = rounded; + } + if (csize == 0) { /* zero block, indicate that there's nothing to write */ zio_data_buf_free(cdata, len); @@ -6545,19 +6546,11 @@ l2arc_compress_buf(arc_buf_hdr_t *hdr) hdr->b_l1hdr.b_tmp_cdata = NULL; ARCSTAT_BUMP(arcstat_l2_compress_zeros); return (B_TRUE); - } - - rounded = P2ROUNDUP(csize, - (size_t)1 << l2hdr->b_dev->l2ad_vdev->vdev_ashift); - if (rounded < len) { + } else if (csize > 0 && csize < len) { /* * Compression succeeded, we'll keep the cdata around for * writing and release it afterwards. */ - if (rounded > csize) { - bzero((char *)cdata + csize, rounded - csize); - csize = rounded; - } HDR_SET_COMPRESS(hdr, ZIO_COMPRESS_LZ4); l2hdr->b_asize = csize; hdr->b_l1hdr.b_tmp_cdata = cdata; @@ -6674,6 +6667,7 @@ l2arc_release_cdata_buf(arc_buf_hdr_t *h hdr->b_size); hdr->b_l1hdr.b_tmp_cdata = NULL; } + } /*
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