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NFS client updates for Linux 3.19

Browse source 
Highlights include:
 
 Features:
 - NFSv4.2 client support for hole punching and preallocation.
 - Further RPC/RDMA client improvements.
 - Add more RPC transport debugging tracepoints.
 - Add RPC debugging tools in debugfs.
 
 Bugfixes:
 - Stable fix for layoutget error handling
 - Fix a change in COMMIT behaviour resulting from the recent io code updates
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Merge tag 'nfs-for-3.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  Features:
   - NFSv4.2 client support for hole punching and preallocation.
   - Further RPC/RDMA client improvements.
   - Add more RPC transport debugging tracepoints.
   - Add RPC debugging tools in debugfs.

  Bugfixes:
   - Stable fix for layoutget error handling
   - Fix a change in COMMIT behaviour resulting from the recent io code
     updates"

* tag 'nfs-for-3.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (28 commits)
  sunrpc: add a debugfs rpc_xprt directory with an info file in it
  sunrpc: add debugfs file for displaying client rpc_task queue
  nfs: Add DEALLOCATE support
  nfs: Add ALLOCATE support
  NFS: Clean up nfs4_init_callback()
  NFS: SETCLIENTID XDR buffer sizes are incorrect
  SUNRPC: serialize iostats updates
  xprtrdma: Display async errors
  xprtrdma: Enable pad optimization
  xprtrdma: Re-write rpcrdma_flush_cqs()
  xprtrdma: Refactor tasklet scheduling
  xprtrdma: unmap all FMRs during transport disconnect
  xprtrdma: Cap req_cqinit
  xprtrdma: Return an errno from rpcrdma_register_external()
  nfs: define nfs_inc_fscache_stats and using it as possible
  nfs: replace nfs_add_stats with nfs_inc_stats when add one
  NFS: Deletion of unnecessary checks before the function call "nfs_put_client"
  sunrpc: eliminate RPC_TRACEPOINTS
  sunrpc: eliminate RPC_DEBUG
  lockd: eliminate LOCKD_DEBUG
  ...
This commit is contained in:
Linus Torvalds 2014-12-10 15:13:13 -08:00
commit e20db597b6
66 changed files with 1171 additions and 244 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/linux/lockd/debug.h
View file

@ -17,12 +17,8 @@
* Enable lockd debugging.
* Requires RPC_DEBUG.
*/
#ifdef RPC_DEBUG
# define LOCKD_DEBUG 1
#endif
#undef ifdebug
#if defined(RPC_DEBUG) && defined(LOCKD_DEBUG)
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
# define ifdebug(flag) if (unlikely(nlm_debug & NLMDBG_##flag))
#else
# define ifdebug(flag) if (0)

2
include/linux/nfs4.h
View file

@ -490,6 +490,8 @@ enum {
/* nfs42 */
NFSPROC4_CLNT_SEEK,
NFSPROC4_CLNT_ALLOCATE,
NFSPROC4_CLNT_DEALLOCATE,
};
/* nfs41 types */

4
include/linux/nfs_fs.h
View file

@ -163,7 +163,7 @@ struct nfs_inode {
*/
__be32 cookieverf[2];
unsigned long npages;
unsigned long nrequests;
struct nfs_mds_commit_info commit_info;
/* Open contexts for shared mmap writes */
@ -520,7 +520,7 @@ extern void nfs_commit_free(struct nfs_commit_data *data);
static inline int
nfs_have_writebacks(struct inode *inode)
{
return NFS_I(inode)->npages != 0;
return NFS_I(inode)->nrequests != 0;
}
/*

2
include/linux/nfs_fs_sb.h
View file

@ -231,5 +231,7 @@ struct nfs_server {
#define NFS_CAP_ATOMIC_OPEN_V1 (1U << 17)
#define NFS_CAP_SECURITY_LABEL (1U << 18)
#define NFS_CAP_SEEK (1U << 19)
#define NFS_CAP_ALLOCATE (1U << 20)
#define NFS_CAP_DEALLOCATE (1U << 21)
#endif

14
include/linux/nfs_xdr.h
View file

@ -1243,6 +1243,20 @@ nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
#endif /* CONFIG_NFS_V4_1 */
#ifdef CONFIG_NFS_V4_2
struct nfs42_falloc_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *falloc_fh;
nfs4_stateid falloc_stateid;
u64 falloc_offset;
u64 falloc_length;
};
struct nfs42_falloc_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
};
struct nfs42_seek_args {
struct nfs4_sequence_args seq_args;

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

@ -53,7 +53,7 @@ struct rpc_cred {
struct rcu_head cr_rcu;
struct rpc_auth * cr_auth;
const struct rpc_credops *cr_ops;
#ifdef RPC_DEBUG
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
unsigned long cr_magic; /* 0x0f4aa4f0 */
#endif
unsigned long cr_expire; /* when to gc */

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

@ -63,6 +63,9 @@ struct rpc_clnt {
struct rpc_rtt cl_rtt_default;
struct rpc_timeout cl_timeout_default;
const struct rpc_program *cl_program;
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct dentry *cl_debugfs; /* debugfs directory */
#endif
};
/*
@ -176,5 +179,6 @@ size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
int rpc_localaddr(struct rpc_clnt *, struct sockaddr *, size_t);
const char *rpc_proc_name(const struct rpc_task *task);
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */

64
include/linux/sunrpc/debug.h
View file

@ -10,22 +10,10 @@
#include <uapi/linux/sunrpc/debug.h>
/*
* Enable RPC debugging/profiling.
*/
#ifdef CONFIG_SUNRPC_DEBUG
#define RPC_DEBUG
#endif
#ifdef CONFIG_TRACEPOINTS
#define RPC_TRACEPOINTS
#endif
/* #define RPC_PROFILE */
/*
* Debugging macros etc
*/
#ifdef RPC_DEBUG
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
extern unsigned int rpc_debug;
extern unsigned int nfs_debug;
extern unsigned int nfsd_debug;
@ -36,7 +24,7 @@ extern unsigned int nlm_debug;
#define dprintk_rcu(args...) dfprintk_rcu(FACILITY, ## args)
#undef ifdebug
#ifdef RPC_DEBUG
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
# define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
# define dfprintk(fac, args...) \
@ -65,9 +53,55 @@ extern unsigned int nlm_debug;
/*
* Sysctl interface for RPC debugging
*/
#ifdef RPC_DEBUG
struct rpc_clnt;
struct rpc_xprt;
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
void rpc_register_sysctl(void);
void rpc_unregister_sysctl(void);
int sunrpc_debugfs_init(void);
void sunrpc_debugfs_exit(void);
int rpc_clnt_debugfs_register(struct rpc_clnt *);
void rpc_clnt_debugfs_unregister(struct rpc_clnt *);
int rpc_xprt_debugfs_register(struct rpc_xprt *);
void rpc_xprt_debugfs_unregister(struct rpc_xprt *);
#else
static inline int
sunrpc_debugfs_init(void)
{
return 0;
}
static inline void
sunrpc_debugfs_exit(void)
{
return;
}
static inline int
rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
{
return 0;
}
static inline void
rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
{
return;
}
static inline int
rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
{
return 0;
}
static inline void
rpc_xprt_debugfs_unregister(struct rpc_xprt *xprt)
{
return;
}
#endif
#endif /* _LINUX_SUNRPC_DEBUG_H_ */

3
include/linux/sunrpc/metrics.h
View file

@ -27,10 +27,13 @@
#include <linux/seq_file.h>
#include <linux/ktime.h>
#include <linux/spinlock.h>
#define RPC_IOSTATS_VERS "1.0"
struct rpc_iostats {
spinlock_t om_lock;
/*
* These counters give an idea about how many request
* transmissions are required, on average, to complete that

8
include/linux/sunrpc/sched.h
View file

@ -79,7 +79,7 @@ struct rpc_task {
unsigned short tk_flags; /* misc flags */
unsigned short tk_timeouts; /* maj timeouts */
#if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
unsigned short tk_pid; /* debugging aid */
#endif
unsigned char tk_priority : 2,/* Task priority */
@ -187,7 +187,7 @@ struct rpc_wait_queue {
unsigned char nr; /* # tasks remaining for cookie */
unsigned short qlen; /* total # tasks waiting in queue */
struct rpc_timer timer_list;
#if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
const char * name;
#endif
};
@ -237,7 +237,7 @@ void rpc_free(void *);
int rpciod_up(void);
void rpciod_down(void);
int __rpc_wait_for_completion_task(struct rpc_task *task, wait_bit_action_f *);
#ifdef RPC_DEBUG
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct net;
void rpc_show_tasks(struct net *);
#endif
@ -251,7 +251,7 @@ static inline int rpc_wait_for_completion_task(struct rpc_task *task)
return __rpc_wait_for_completion_task(task, NULL);
}
#if defined(RPC_DEBUG) || defined (RPC_TRACEPOINTS)
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
static inline const char * rpc_qname(const struct rpc_wait_queue *q)
{
return ((q && q->name) ? q->name : "unknown");

3
include/linux/sunrpc/xprt.h
View file

@ -239,6 +239,9 @@ struct rpc_xprt {
struct net *xprt_net;
const char *servername;
const char *address_strings[RPC_DISPLAY_MAX];
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct dentry *debugfs; /* debugfs directory */
#endif
};
#if defined(CONFIG_SUNRPC_BACKCHANNEL)

59
include/linux/sunrpc/xprtsock.h
View file

@ -17,6 +17,65 @@ void cleanup_socket_xprt(void);
#define RPC_DEF_MIN_RESVPORT (665U)
#define RPC_DEF_MAX_RESVPORT (1023U)
struct sock_xprt {
struct rpc_xprt xprt;
/*
* Network layer
*/
struct socket * sock;
struct sock * inet;
/*
* State of TCP reply receive
*/
__be32 tcp_fraghdr,
tcp_xid,
tcp_calldir;
u32 tcp_offset,
tcp_reclen;
unsigned long tcp_copied,
tcp_flags;
/*
* Connection of transports
*/
struct delayed_work connect_worker;
struct sockaddr_storage srcaddr;
unsigned short srcport;
/*
* UDP socket buffer size parameters
*/
size_t rcvsize,
sndsize;
/*
* Saved socket callback addresses
*/
void (*old_data_ready)(struct sock *);
void (*old_state_change)(struct sock *);
void (*old_write_space)(struct sock *);
void (*old_error_report)(struct sock *);
};
/*
* TCP receive state flags
*/
#define TCP_RCV_LAST_FRAG (1UL << 0)
#define TCP_RCV_COPY_FRAGHDR (1UL << 1)
#define TCP_RCV_COPY_XID (1UL << 2)
#define TCP_RCV_COPY_DATA (1UL << 3)
#define TCP_RCV_READ_CALLDIR (1UL << 4)
#define TCP_RCV_COPY_CALLDIR (1UL << 5)
/*
* TCP RPC flags
*/
#define TCP_RPC_REPLY (1UL << 6)
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_XPRTSOCK_H */