svn commit: r200762 - user/kmacy/releng_8_fcs_buf_xen/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[John Baldwin]

On Sunday 20 December 2009 10:10:27 pm Kip Macy wrote:
> Author: kmacy
> Date: Mon Dec 21 03:10:26 2009
> New Revision: 200762
> URL: http://svn.freebsd.org/changeset/base/200762
> 
> Log:
>   align hash table locks
> 
> Modified:
>   
user/kmacy/releng_8_fcs_buf_xen/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
> 
> Modified: 
user/kmacy/releng_8_fcs_buf_xen/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
> 
==============================================================================
> --- 
user/kmacy/releng_8_fcs_buf_xen/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	
Sun Dec 20 22:55:27 2009	(r200761)
> +++ 
user/kmacy/releng_8_fcs_buf_xen/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	
Mon Dec 21 03:10:26 2009	(r200762)
> @@ -548,7 +548,7 @@ struct ht_lock {
>  typedef struct buf_hash_table {
>  	uint64_t ht_mask;
>  	arc_buf_hdr_t **ht_table;
> -	struct ht_lock ht_locks[BUF_LOCKS];
> +	struct ht_lock ht_locks[BUF_LOCKS] __aligned(128);
>  } buf_hash_table_t;

FYI, there is a CACHE_LINE_SIZE constant in <machine/param.h> you can use 
instead of hardcoding an x86-specific value.

-- 
John Baldwin