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Merge branch 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Browse source 
* 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (44 commits)
  NFSv4: Don't use the delegation->inode in nfs_mark_return_delegation()
  nfs: don't use d_move in nfs_async_rename_done
  RDMA: Increasing RPCRDMA_MAX_DATA_SEGS
  SUNRPC: Replace xprt->resend and xprt->sending with a priority queue
  SUNRPC: Allow caller of rpc_sleep_on() to select priority levels
  SUNRPC: Support dynamic slot allocation for TCP connections
  SUNRPC: Clean up the slot table allocation
  SUNRPC: Initalise the struct xprt upon allocation
  SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot
  pnfs: simplify pnfs files module autoloading
  nfs: document nfsv4 sillyrename issues
  NFS: Convert nfs4_set_ds_client to EXPORT_SYMBOL_GPL
  SUNRPC: Convert the backchannel exports to EXPORT_SYMBOL_GPL
  SUNRPC: sunrpc should not explicitly depend on NFS config options
  NFS: Clean up - simplify the switch to read/write-through-MDS
  NFS: Move the pnfs write code into pnfs.c
  NFS: Move the pnfs read code into pnfs.c
  NFS: Allow the nfs_pageio_descriptor to signal that a re-coalesce is needed
  NFS: Use the nfs_pageio_descriptor->pg_bsize in the read/write request
  NFS: Cache rpc_ops in struct nfs_pageio_descriptor
  ...
This commit is contained in:
Linus Torvalds 2011-07-27 13:23:02 -07:00
commit 28890d3598
44 changed files with 1856 additions and 632 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/linux/nfs4.h
View file

@ -563,6 +563,9 @@ enum {
NFSPROC4_CLNT_GETDEVICEINFO,
NFSPROC4_CLNT_LAYOUTCOMMIT,
NFSPROC4_CLNT_LAYOUTRETURN,
NFSPROC4_CLNT_SECINFO_NO_NAME,
NFSPROC4_CLNT_TEST_STATEID,
NFSPROC4_CLNT_FREE_STATEID,
};
/* nfs41 types */

5
include/linux/nfs_fs_sb.h
View file

@ -16,6 +16,7 @@ struct nfs4_sequence_args;
struct nfs4_sequence_res;
struct nfs_server;
struct nfs4_minor_version_ops;
struct server_scope;
/*
* The nfs_client identifies our client state to the server.
@ -77,12 +78,13 @@ struct nfs_client {
/* The flags used for obtaining the clientid during EXCHANGE_ID */
u32 cl_exchange_flags;
struct nfs4_session *cl_session; /* sharred session */
struct list_head cl_layouts;
#endif /* CONFIG_NFS_V4 */
#ifdef CONFIG_NFS_FSCACHE
struct fscache_cookie *fscache; /* client index cache cookie */
#endif
struct server_scope *server_scope; /* from exchange_id */
};
/*
@ -149,6 +151,7 @@ struct nfs_server {
struct rb_root openowner_id;
struct rb_root lockowner_id;
#endif
struct list_head layouts;
struct list_head delegations;
void (*destroy)(struct nfs_server *);

17
include/linux/nfs_page.h
View file

@ -55,20 +55,28 @@ struct nfs_page {
struct nfs_writeverf wb_verf; /* Commit cookie */
};
struct nfs_pageio_descriptor;
struct nfs_pageio_ops {
void (*pg_init)(struct nfs_pageio_descriptor *, struct nfs_page *);
bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
int (*pg_doio)(struct nfs_pageio_descriptor *);
};
struct nfs_pageio_descriptor {
struct list_head pg_list;
unsigned long pg_bytes_written;
size_t pg_count;
size_t pg_bsize;
unsigned int pg_base;
char pg_moreio;
unsigned char pg_moreio : 1,
pg_recoalesce : 1;
struct inode *pg_inode;
int (*pg_doio)(struct nfs_pageio_descriptor *);
const struct nfs_pageio_ops *pg_ops;
int pg_ioflags;
int pg_error;
const struct rpc_call_ops *pg_rpc_callops;
struct pnfs_layout_segment *pg_lseg;
bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
};
#define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags))
@ -85,7 +93,7 @@ extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst,
pgoff_t idx_start, unsigned int npages, int tag);
extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
struct inode *inode,
int (*doio)(struct nfs_pageio_descriptor *desc),
const struct nfs_pageio_ops *pg_ops,
size_t bsize,
int how);
extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *,
@ -100,7 +108,6 @@ extern void nfs_unlock_request(struct nfs_page *req);
extern int nfs_set_page_tag_locked(struct nfs_page *req);
extern void nfs_clear_page_tag_locked(struct nfs_page *req);
/*
* Lock the page of an asynchronous request without getting a new reference
*/

34
include/linux/nfs_xdr.h
View file

@ -269,9 +269,10 @@ struct nfs4_layoutcommit_data {
};
struct nfs4_layoutreturn_args {
__u32 layout_type;
struct pnfs_layout_hdr *layout;
struct inode *inode;
nfs4_stateid stateid;
__u32 layout_type;
struct nfs4_sequence_args seq_args;
};
@ -1060,6 +1061,7 @@ struct server_scope {
struct nfs41_exchange_id_res {
struct nfs_client *client;
u32 flags;
struct server_scope *server_scope;
};
struct nfs41_create_session_args {
@ -1083,6 +1085,34 @@ struct nfs41_reclaim_complete_args {
struct nfs41_reclaim_complete_res {
struct nfs4_sequence_res seq_res;
};
#define SECINFO_STYLE_CURRENT_FH 0
#define SECINFO_STYLE_PARENT 1
struct nfs41_secinfo_no_name_args {
int style;
struct nfs4_sequence_args seq_args;
};
struct nfs41_test_stateid_args {
nfs4_stateid *stateid;
struct nfs4_sequence_args seq_args;
};
struct nfs41_test_stateid_res {
unsigned int status;
struct nfs4_sequence_res seq_res;
};
struct nfs41_free_stateid_args {
nfs4_stateid *stateid;
struct nfs4_sequence_args seq_args;
};
struct nfs41_free_stateid_res {
unsigned int status;
struct nfs4_sequence_res seq_res;
};
#endif /* CONFIG_NFS_V4_1 */
struct nfs_page;
@ -1096,6 +1126,7 @@ struct nfs_read_data {
struct rpc_cred *cred;
struct nfs_fattr fattr; /* fattr storage */
struct list_head pages; /* Coalesced read requests */
struct list_head list; /* lists of struct nfs_read_data */
struct nfs_page *req; /* multi ops per nfs_page */
struct page **pagevec;
unsigned int npages; /* Max length of pagevec */
@ -1119,6 +1150,7 @@ struct nfs_write_data {
struct nfs_fattr fattr;
struct nfs_writeverf verf;
struct list_head pages; /* Coalesced requests we wish to flush */
struct list_head list; /* lists of struct nfs_write_data */
struct nfs_page *req; /* multi ops per nfs_page */
struct page **pagevec;
unsigned int npages; /* Max length of pagevec */

31
include/linux/pnfs_osd_xdr.h
View file

@ -41,9 +41,6 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
#include <scsi/osd_protocol.h>
#define PNFS_OSD_OSDNAME_MAXSIZE 256
/*
* draft-ietf-nfsv4-minorversion-22
@ -99,12 +96,6 @@ struct pnfs_osd_objid {
#define _DEVID_HI(oid_device_id) \
(unsigned long long)be64_to_cpup(((__be64 *)(oid_device_id)->data) + 1)
static inline int
pnfs_osd_objid_xdr_sz(void)
{
return (NFS4_DEVICEID4_SIZE / 4) + 2 + 2;
}
enum pnfs_osd_version {
PNFS_OSD_MISSING = 0,
PNFS_OSD_VERSION_1 = 1,
@ -189,8 +180,6 @@ struct pnfs_osd_targetid {
struct nfs4_string oti_scsi_device_id;
};
enum { PNFS_OSD_TARGETID_MAX = 1 + PNFS_OSD_OSDNAME_MAXSIZE / 4 };
/* struct netaddr4 {
* // see struct rpcb in RFC1833
* string r_netid<>; // network id
@ -207,12 +196,6 @@ struct pnfs_osd_targetaddr {
struct pnfs_osd_net_addr ota_netaddr;
};
enum {
NETWORK_ID_MAX = 16 / 4,
UNIVERSAL_ADDRESS_MAX = 64 / 4,
PNFS_OSD_TARGETADDR_MAX = 3 + NETWORK_ID_MAX + UNIVERSAL_ADDRESS_MAX,
};
struct pnfs_osd_deviceaddr {
struct pnfs_osd_targetid oda_targetid;
struct pnfs_osd_targetaddr oda_targetaddr;
@ -222,15 +205,6 @@ struct pnfs_osd_deviceaddr {
struct nfs4_string oda_osdname;
};
enum {
ODA_OSDNAME_MAX = PNFS_OSD_OSDNAME_MAXSIZE / 4,
PNFS_OSD_DEVICEADDR_MAX =
PNFS_OSD_TARGETID_MAX + PNFS_OSD_TARGETADDR_MAX +
2 /*oda_lun*/ +
1 + OSD_SYSTEMID_LEN +
1 + ODA_OSDNAME_MAX,
};
/* LAYOUTCOMMIT: layoutupdate */
/* union pnfs_osd_deltaspaceused4 switch (bool dsu_valid) {
@ -279,7 +253,7 @@ struct pnfs_osd_ioerr {
u32 oer_errno;
};
/* OSD XDR API */
/* OSD XDR Client API */
/* Layout helpers */
/* Layout decoding is done in two parts:
* 1. First Call pnfs_osd_xdr_decode_layout_map to read in only the header part
@ -337,8 +311,7 @@ extern int
pnfs_osd_xdr_encode_layoutupdate(struct xdr_stream *xdr,
struct pnfs_osd_layoutupdate *lou);
/* osd_ioerror encoding/decoding (layout_return) */
/* Client */
/* osd_ioerror encoding (layout_return) */
extern __be32 *pnfs_osd_xdr_ioerr_reserve_space(struct xdr_stream *xdr);
extern void pnfs_osd_xdr_encode_ioerr(__be32 *p, struct pnfs_osd_ioerr *ioerr);

6
include/linux/sunrpc/bc_xprt.h
View file

@ -31,7 +31,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <linux/sunrpc/xprt.h>
#include <linux/sunrpc/sched.h>
#ifdef CONFIG_NFS_V4_1
#ifdef CONFIG_SUNRPC_BACKCHANNEL
struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt);
void xprt_free_bc_request(struct rpc_rqst *req);
int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
@ -47,7 +47,7 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
return 1;
return 0;
}
#else /* CONFIG_NFS_V4_1 */
#else /* CONFIG_SUNRPC_BACKCHANNEL */
static inline int xprt_setup_backchannel(struct rpc_xprt *xprt,
unsigned int min_reqs)
{
@ -62,6 +62,6 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
static inline void xprt_free_bc_request(struct rpc_rqst *req)
{
}
#endif /* CONFIG_NFS_V4_1 */
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
#endif /* _LINUX_SUNRPC_BC_XPRT_H */

4
include/linux/sunrpc/sched.h
View file

@ -227,6 +227,10 @@ void rpc_init_wait_queue(struct rpc_wait_queue *, const char *);
void rpc_destroy_wait_queue(struct rpc_wait_queue *);
void rpc_sleep_on(struct rpc_wait_queue *, struct rpc_task *,
rpc_action action);
void rpc_sleep_on_priority(struct rpc_wait_queue *,
struct rpc_task *,
rpc_action action,
int priority);
void rpc_wake_up_queued_task(struct rpc_wait_queue *,
struct rpc_task *);
void rpc_wake_up(struct rpc_wait_queue *);

4
include/linux/sunrpc/svc.h
View file

@ -92,7 +92,7 @@ struct svc_serv {
struct module * sv_module; /* optional module to count when
* adding threads */
svc_thread_fn sv_function; /* main function for threads */
#if defined(CONFIG_NFS_V4_1)
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
struct list_head sv_cb_list; /* queue for callback requests
* that arrive over the same
* connection */
@ -100,7 +100,7 @@ struct svc_serv {
wait_queue_head_t sv_cb_waitq; /* sleep here if there are no
* entries in the svc_cb_list */
struct svc_xprt *sv_bc_xprt; /* callback on fore channel */
#endif /* CONFIG_NFS_V4_1 */
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
};
/*

34
include/linux/sunrpc/xprt.h
View file

@ -22,6 +22,7 @@
#define RPC_MIN_SLOT_TABLE (2U)
#define RPC_DEF_SLOT_TABLE (16U)
#define RPC_MAX_SLOT_TABLE (128U)
#define RPC_MAX_SLOT_TABLE_LIMIT (65536U)
/*
* This describes a timeout strategy
@ -100,18 +101,18 @@ struct rpc_rqst {
ktime_t rq_xtime; /* transmit time stamp */
int rq_ntrans;
#if defined(CONFIG_NFS_V4_1)
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
struct list_head rq_bc_list; /* Callback service list */
unsigned long rq_bc_pa_state; /* Backchannel prealloc state */
struct list_head rq_bc_pa_list; /* Backchannel prealloc list */
#endif /* CONFIG_NFS_V4_1 */
#endif /* CONFIG_SUNRPC_BACKCHANEL */
};
#define rq_svec rq_snd_buf.head
#define rq_slen rq_snd_buf.len
struct rpc_xprt_ops {
void (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize);
int (*reserve_xprt)(struct rpc_task *task);
int (*reserve_xprt)(struct rpc_xprt *xprt, struct rpc_task *task);
void (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task);
void (*rpcbind)(struct rpc_task *task);
void (*set_port)(struct rpc_xprt *xprt, unsigned short port);
@ -164,12 +165,12 @@ struct rpc_xprt {
struct rpc_wait_queue binding; /* requests waiting on rpcbind */
struct rpc_wait_queue sending; /* requests waiting to send */
struct rpc_wait_queue resend; /* requests waiting to resend */
struct rpc_wait_queue pending; /* requests in flight */
struct rpc_wait_queue backlog; /* waiting for slot */
struct list_head free; /* free slots */
struct rpc_rqst * slot; /* slot table storage */
unsigned int max_reqs; /* total slots */
unsigned int max_reqs; /* max number of slots */
unsigned int min_reqs; /* min number of slots */
atomic_t num_reqs; /* total slots */
unsigned long state; /* transport state */
unsigned char shutdown : 1, /* being shut down */
resvport : 1; /* use a reserved port */
@ -200,7 +201,7 @@ struct rpc_xprt {
u32 xid; /* Next XID value to use */
struct rpc_task * snd_task; /* Task blocked in send */
struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
#if defined(CONFIG_NFS_V4_1)
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
struct svc_serv *bc_serv; /* The RPC service which will */
/* process the callback */
unsigned int bc_alloc_count; /* Total number of preallocs */
@ -208,7 +209,7 @@ struct rpc_xprt {
* items */
struct list_head bc_pa_list; /* List of preallocated
* backchannel rpc_rqst's */
#endif /* CONFIG_NFS_V4_1 */
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
struct list_head recv;
struct {
@ -228,15 +229,15 @@ struct rpc_xprt {
const char *address_strings[RPC_DISPLAY_MAX];
};
#if defined(CONFIG_NFS_V4_1)
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
/*
* Backchannel flags
*/
#define RPC_BC_PA_IN_USE 0x0001 /* Preallocated backchannel */
/* buffer in use */
#endif /* CONFIG_NFS_V4_1 */
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
#if defined(CONFIG_NFS_V4_1)
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
static inline int bc_prealloc(struct rpc_rqst *req)
{
return test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state);
@ -246,7 +247,7 @@ static inline int bc_prealloc(struct rpc_rqst *req)
{
return 0;
}
#endif /* CONFIG_NFS_V4_1 */
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
struct xprt_create {
int ident; /* XPRT_TRANSPORT identifier */
@ -271,8 +272,8 @@ struct xprt_class {
struct rpc_xprt *xprt_create_transport(struct xprt_create *args);
void xprt_connect(struct rpc_task *task);
void xprt_reserve(struct rpc_task *task);
int xprt_reserve_xprt(struct rpc_task *task);
int xprt_reserve_xprt_cong(struct rpc_task *task);
int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task);
int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task);
int xprt_prepare_transmit(struct rpc_task *task);
void xprt_transmit(struct rpc_task *task);
void xprt_end_transmit(struct rpc_task *task);
@ -282,7 +283,9 @@ void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task);
void xprt_release(struct rpc_task *task);
struct rpc_xprt * xprt_get(struct rpc_xprt *xprt);
void xprt_put(struct rpc_xprt *xprt);
struct rpc_xprt * xprt_alloc(struct net *net, int size, int max_req);
struct rpc_xprt * xprt_alloc(struct net *net, size_t size,
unsigned int num_prealloc,
unsigned int max_req);
void xprt_free(struct rpc_xprt *);
static inline __be32 *xprt_skip_transport_header(struct rpc_xprt *xprt, __be32 *p)
@ -321,7 +324,6 @@ void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie);
#define XPRT_CLOSING (6)
#define XPRT_CONNECTION_ABORT (7)
#define XPRT_CONNECTION_CLOSE (8)
#define XPRT_INITIALIZED (9)
static inline void xprt_set_connected(struct rpc_xprt *xprt)
{