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MFV r260834:

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Fix memory leak of compressed buffers in l2arc_write_done (Illumos
#3995).
This commit is contained in:
Xin LI 2014-01-18 01:45:39 +00:00
commit bea6313e6b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=260835
1 changed files with 8 additions and 9 deletions
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17
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
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@ -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.