Date: Sat, 18 Jan 2014 01:45:39 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r260835 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201401180145.s0I1jdZj096724@svn.freebsd.org>
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Author: delphij Date: Sat Jan 18 01:45:39 2014 New Revision: 260835 URL: http://svnweb.freebsd.org/changeset/base/260835 Log: MFV r260834: Fix memory leak of compressed buffers in l2arc_write_done (Illumos #3995). Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Directory Properties: head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Sat Jan 18 01:40:36 2014 (r260834) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Sat Jan 18 01:45:39 2014 (r260835) @@ -21,7 +21,7 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2013 by Delphix. All rights reserved. - * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. + * Copyright (c) 2014 by Saso Kiselkov. All rights reserved. * Copyright 2013 Nexenta Systems, Inc. All rights reserved. */ @@ -4597,6 +4597,13 @@ l2arc_write_done(zio_t *zio) */ for (ab = list_prev(buflist, head); ab; ab = ab_prev) { ab_prev = list_prev(buflist, ab); + abl2 = ab->b_l2hdr; + + /* + * Release the temporary compressed buffer as soon as possible. + */ + if (abl2->b_compress != ZIO_COMPRESS_OFF) + l2arc_release_cdata_buf(ab); hash_lock = HDR_LOCK(ab); if (!mutex_tryenter(hash_lock)) { @@ -4609,14 +4616,6 @@ l2arc_write_done(zio_t *zio) continue; } - abl2 = ab->b_l2hdr; - - /* - * Release the temporary compressed buffer as soon as possible. - */ - if (abl2->b_compress != ZIO_COMPRESS_OFF) - l2arc_release_cdata_buf(ab); - if (zio->io_error != 0) { /* * Error - drop L2ARC entry.
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