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Commit 82714bd1 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4.1/pnfs Improve the packing of struct pnfs_layout_hdr 



Eliminate a couple of holes in the structure, and move the 2 atomics
into the same cacheline.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent e3b1df2d

fs/nfs/pnfs.h

+3 −3
Original line number Diff line number Diff line
@@ -183,15 +183,15 @@ struct pnfs_layoutdriver_type { 


struct pnfs_layout_hdr {

	atomic_t		plh_refcount;

	atomic_t		plh_outstanding; /* number of RPCs out */

	struct list_head	plh_layouts;   /* other client layouts */

	struct list_head	plh_bulk_destroy;

	struct list_head	plh_segs;      /* layout segments list */

	nfs4_stateid		plh_stateid;

	atomic_t		plh_outstanding; /* number of RPCs out */

	unsigned long		plh_block_lgets; /* block LAYOUTGET if >0 */

	u32			plh_barrier; /* ignore lower seqids */

	unsigned long		plh_retry_timestamp;

	unsigned long		plh_flags;

	nfs4_stateid		plh_stateid;

	u32			plh_barrier; /* ignore lower seqids */

	enum pnfs_iomode	plh_return_iomode;

	loff_t			plh_lwb; /* last write byte for layoutcommit */

	struct rpc_cred		*plh_lc_cred; /* layoutcommit cred */