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authorSaso Kiselkov <[email protected]>2013-10-14 18:29:45 -0400
committerBrian Behlendorf <[email protected]>2013-11-05 12:26:00 -0800
commit1ca546b33888b8f4c7e737faf8f038732926fd6e (patch)
tree61bde6ded893cf820562eb7f42c053b765dc0965 /module/zfs/arc.c
parent43a696ed38cae25ec2d7b6466ab4a99eb86df7bd (diff)
Illumos #3995
3995 Memory leak of compressed buffers in l2arc_write_done References: https://illumos.org/issues/3995 Ported-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #1688 Issue #1775
Diffstat (limited to 'module/zfs/arc.c')
-rw-r--r--module/zfs/arc.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/module/zfs/arc.c b/module/zfs/arc.c
index 5bba9a317..6aa7d37c7 100644
--- a/module/zfs/arc.c
+++ b/module/zfs/arc.c
@@ -4487,6 +4487,13 @@ 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)) {
@@ -4499,14 +4506,6 @@ 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.