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Highlights:

Browse source 
Trond made a change to the server's tcp logic that allows a fast
 	client to better take advantage of high bandwidth networks, but
 	may increase the risk that a single client could starve other
 	clients; a new sunrpc.svc_rpc_per_connection_limit parameter
 	should help mitigate this in the (hopefully unlikely) event this
 	becomes a problem in practice.
 
 	Tom Haynes added a minimal flex-layout pnfs server, which is of
 	no use in production for now--don't build it unless you're doing
 	client testing or further server development.
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Merge tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux

Pull nfsd updates from Bruce Fields:
 "Highlights:

   - Trond made a change to the server's tcp logic that allows a fast
     client to better take advantage of high bandwidth networks, but may
     increase the risk that a single client could starve other clients;
     a new sunrpc.svc_rpc_per_connection_limit parameter should help
     mitigate this in the (hopefully unlikely) event this becomes a
     problem in practice.

   - Tom Haynes added a minimal flex-layout pnfs server, which is of no
     use in production for now--don't build it unless you're doing
     client testing or further server development"

* tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux: (32 commits)
  nfsd: remove some dead code in nfsd_create_locked()
  nfsd: drop unnecessary MAY_EXEC check from create
  nfsd: clean up bad-type check in nfsd_create_locked
  nfsd: remove unnecessary positive-dentry check
  nfsd: reorganize nfsd_create
  nfsd: check d_can_lookup in fh_verify of directories
  nfsd: remove redundant zero-length check from create
  nfsd: Make creates return EEXIST instead of EACCES
  SUNRPC: Detect immediate closure of accepted sockets
  SUNRPC: accept() may return sockets that are still in SYN_RECV
  nfsd: allow nfsd to advertise multiple layout types
  nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock
  nfsd/blocklayout: Make sure calculate signature/designator length aligned
  xfs: abstract block export operations from nfsd layouts
  SUNRPC: Remove unused callback xpo_adjust_wspace()
  SUNRPC: Change TCP socket space reservation
  SUNRPC: Add a server side per-connection limit
  SUNRPC: Micro optimisation for svc_data_ready
  SUNRPC: Call the default socket callbacks instead of open coding
  SUNRPC: lock the socket while detaching it
  ...
This commit is contained in:
Linus Torvalds 2016-08-04 19:59:06 -04:00
commit a71e36045e
37 changed files with 784 additions and 335 deletions
Download patch file Download diff file Expand all files Collapse all files

11
include/linux/nfs4.h
View file

@ -643,4 +643,15 @@ enum pnfs_update_layout_reason {
PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET,
};
#define NFS4_OP_MAP_NUM_LONGS \
DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
#define NFS4_OP_MAP_NUM_WORDS \
(NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
struct nfs4_op_map {
union {
unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
u32 words[NFS4_OP_MAP_NUM_WORDS];
} u;
};
#endif

11
include/linux/nfs_xdr.h
View file

@ -1185,17 +1185,6 @@ struct pnfs_ds_commit_info {
struct pnfs_commit_bucket *buckets;
};
#define NFS4_OP_MAP_NUM_LONGS \
DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
#define NFS4_OP_MAP_NUM_WORDS \
(NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
struct nfs4_op_map {
union {
unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
u32 words[NFS4_OP_MAP_NUM_WORDS];
} u;
};
struct nfs41_state_protection {
u32 how;
struct nfs4_op_map enforce;

2
include/linux/sunrpc/cache.h
View file

@ -78,8 +78,6 @@ struct cache_detail {
struct hlist_head * hash_table;
rwlock_t hash_lock;
atomic_t inuse; /* active user-space update or lookup */
char *name;
void (*cache_put)(struct kref *);

1
include/linux/sunrpc/svc.h
View file

@ -268,6 +268,7 @@ struct svc_rqst {
* cache pages */
#define RQ_VICTIM (5) /* about to be shut down */
#define RQ_BUSY (6) /* request is busy */
#define RQ_DATA (7) /* request has data */
unsigned long rq_flags; /* flags field */
void * rq_argp; /* decoded arguments */

2
include/linux/sunrpc/svc_xprt.h
View file

@ -25,7 +25,6 @@ struct svc_xprt_ops {
void (*xpo_detach)(struct svc_xprt *);
void (*xpo_free)(struct svc_xprt *);
int (*xpo_secure_port)(struct svc_rqst *);
void (*xpo_adjust_wspace)(struct svc_xprt *);
};
struct svc_xprt_class {
@ -69,6 +68,7 @@ struct svc_xprt {
struct svc_serv *xpt_server; /* service for transport */
atomic_t xpt_reserved; /* space on outq that is rsvd */
atomic_t xpt_nr_rqsts; /* Number of requests */
struct mutex xpt_mutex; /* to serialize sending data */
spinlock_t xpt_lock; /* protects sk_deferred
* and xpt_auth_cache */