Author: mav
Date: Fri Jun 14 17:09:39 2019
New Revision: 349035
URL: https://svnweb.freebsd.org/changeset/base/349035
Log:
Properly align struct multilist_sublist to cache line.
Manual Illumos alignment does not fit us due to different kmutex_t size.
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Modified:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/multilist.h
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/multilist.h
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/multilist.h Fri Jun
14 15:09:08 2019 (r349034)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/multilist.h Fri Jun
14 17:09:39 2019 (r349035)
@@ -44,11 +44,10 @@ struct multilist_sublist {
*/
list_t mls_list;
/*
- * Pad to cache line (64 bytes), in an effort to try and prevent
- * cache line contention.
+ * Pad to cache line, in an effort to try and prevent cache line
+ * contention.
*/
- uint8_t mls_pad[24];
-};
+} __aligned(CACHE_LINE_SIZE);
struct multilist {
/*
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