Author: mav
Date: Wed Mar 28 22:43:55 2018
New Revision: 331708
URL: https://svnweb.freebsd.org/changeset/base/331708
Log:
9321 arc_loan_compressed_buf() can increment arc_loaned_bytes by the wrong
value
illumos/illumos-gate@9be12bd737714550277bd02b0c693db560976990
arc_loan_compressed_buf() increments arc_loaned_bytes by psize unconditionally
In the case of zfs_compressed_arc_enabled=0, when the buf is returned via
arc_return_buf(), if ARC_BUF_COMPRESSED(buf) is false, then arc_loaned_bytes
is decremented by lsize, not psize.
Switch to using arc_buf_size(buf), instead of psize, which will return
psize or lsize, depending on the result of ARC_BUF_COMPRESSED(buf).
Reviewed by: Matt Ahrens <m...@delphix.com>
Reviewed by: George Wilson <george.wil...@delphix.com>
Approved by: Garrett D'Amore <garr...@damore.org>
Author: Allan Jude <allanj...@freebsd.org>
Modified:
vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c
Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c
==============================================================================
--- vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Wed Mar 28 22:29:06
2018 (r331707)
+++ vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Wed Mar 28 22:43:55
2018 (r331708)
@@ -2557,7 +2557,7 @@ arc_loan_buf(spa_t *spa, boolean_t is_metadata, int si
arc_buf_t *buf = arc_alloc_buf(spa, arc_onloan_tag,
is_metadata ? ARC_BUFC_METADATA : ARC_BUFC_DATA, size);
- arc_loaned_bytes_update(size);
+ arc_loaned_bytes_update(arc_buf_size(buf));
return (buf);
}
@@ -2569,7 +2569,7 @@ arc_loan_compressed_buf(spa_t *spa, uint64_t psize, ui
arc_buf_t *buf = arc_alloc_compressed_buf(spa, arc_onloan_tag,
psize, lsize, compression_type);
- arc_loaned_bytes_update(psize);
+ arc_loaned_bytes_update(arc_buf_size(buf));
return (buf);
}
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