summaryrefslogtreecommitdiff
path: root/include/linux/nfsd
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/nfsd')
-rw-r--r--include/linux/nfsd/const.h20
-rw-r--r--include/linux/nfsd/export.h21
-rw-r--r--include/linux/nfsd/nfsd.h10
-rw-r--r--include/linux/nfsd/nfsfh.h11
-rw-r--r--include/linux/nfsd/stats.h2
-rw-r--r--include/linux/nfsd/syscall.h17
-rw-r--r--include/linux/nfsd/xdr.h4
-rw-r--r--include/linux/nfsd/xdr3.h2
-rw-r--r--include/linux/nfsd/xdr4.h2
9 files changed, 57 insertions, 32 deletions
diff --git a/include/linux/nfsd/const.h b/include/linux/nfsd/const.h
index b75bb1b38d09..f0cc77790527 100644
--- a/include/linux/nfsd/const.h
+++ b/include/linux/nfsd/const.h
@@ -20,17 +20,31 @@
#define NFSSVC_MAXVERS 3
/*
- * Maximum blocksize supported by daemon currently at 32K
+ * Maximum blocksizes supported by daemon under various circumstances.
*/
-#define NFSSVC_MAXBLKSIZE (32*1024)
+#define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD
+/* NFSv2 is limited by the protocol specification, see RFC 1094 */
+#define NFSSVC_MAXBLKSIZE_V2 (8*1024)
#ifdef __KERNEL__
+#include <linux/sunrpc/msg_prot.h>
+
#ifndef NFS_SUPER_MAGIC
# define NFS_SUPER_MAGIC 0x6969
#endif
-#define NFSD_BUFSIZE (1024 + NFSSVC_MAXBLKSIZE)
+/*
+ * Largest number of bytes we need to allocate for an NFS
+ * call or reply. Used to control buffer sizes. We use
+ * the length of v3 WRITE, READDIR and READDIR replies
+ * which are an RPC header, up to 26 XDR units of reply
+ * data, and some page data.
+ *
+ * Note that accuracy here doesn't matter too much as the
+ * size is rounded up to a page size when allocating space.
+ */
+#define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
#ifdef CONFIG_NFSD_V4
# define NFSSVC_XDRSIZE NFS4_SVC_XDRSIZE
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index d2a8abb5011a..6e78ea969f49 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -45,15 +45,36 @@
#ifdef __KERNEL__
+/*
+ * FS Locations
+ */
+
+#define MAX_FS_LOCATIONS 128
+
+struct nfsd4_fs_location {
+ char *hosts; /* colon separated list of hosts */
+ char *path; /* slash separated list of path components */
+};
+
+struct nfsd4_fs_locations {
+ uint32_t locations_count;
+ struct nfsd4_fs_location *locations;
+/* If we're not actually serving this data ourselves (only providing a
+ * list of replicas that do serve it) then we set "migrated": */
+ int migrated;
+};
+
struct svc_export {
struct cache_head h;
struct auth_domain * ex_client;
int ex_flags;
struct vfsmount * ex_mnt;
struct dentry * ex_dentry;
+ char * ex_path;
uid_t ex_anon_uid;
gid_t ex_anon_gid;
int ex_fsid;
+ struct nfsd4_fs_locations ex_fslocs;
};
/* an "export key" (expkey) maps a filehandlefragement to an
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 2dcad295fece..d0d4aae7085f 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -140,6 +140,12 @@ struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
#endif
+enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
+int nfsd_vers(int vers, enum vers_op change);
+void nfsd_reset_versions(void);
+int nfsd_create_serv(void);
+
+extern int nfsd_max_blksize;
/*
* NFSv4 State
@@ -210,6 +216,7 @@ void nfsd_lockd_shutdown(void);
#define nfserr_clid_inuse __constant_htonl(NFSERR_CLID_INUSE)
#define nfserr_stale_clientid __constant_htonl(NFSERR_STALE_CLIENTID)
#define nfserr_resource __constant_htonl(NFSERR_RESOURCE)
+#define nfserr_moved __constant_htonl(NFSERR_MOVED)
#define nfserr_nofilehandle __constant_htonl(NFSERR_NOFILEHANDLE)
#define nfserr_minor_vers_mismatch __constant_htonl(NFSERR_MINOR_VERS_MISMATCH)
#define nfserr_share_denied __constant_htonl(NFSERR_SHARE_DENIED)
@@ -286,7 +293,6 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
/*
* The following attributes are currently not supported by the NFSv4 server:
* ARCHIVE (deprecated anyway)
- * FS_LOCATIONS (will be supported eventually)
* HIDDEN (unlikely to be supported any time soon)
* MIMETYPE (unlikely to be supported any time soon)
* QUOTA_* (will be supported in a forthcoming patch)
@@ -302,7 +308,7 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
| FATTR4_WORD0_ACLSUPPORT | FATTR4_WORD0_CANSETTIME | FATTR4_WORD0_CASE_INSENSITIVE \
| FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED \
| FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FILEID | FATTR4_WORD0_FILES_AVAIL \
- | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_HOMOGENEOUS \
+ | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_HOMOGENEOUS \
| FATTR4_WORD0_MAXFILESIZE | FATTR4_WORD0_MAXLINK | FATTR4_WORD0_MAXNAME \
| FATTR4_WORD0_MAXREAD | FATTR4_WORD0_MAXWRITE | FATTR4_WORD0_ACL)
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index 31a3cb617ce0..069257ea99a0 100644
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -290,8 +290,9 @@ fill_post_wcc(struct svc_fh *fhp)
* vfs.c:nfsd_rename as it needs to grab 2 i_mutex's at once
* so, any changes here should be reflected there.
*/
+
static inline void
-fh_lock(struct svc_fh *fhp)
+fh_lock_nested(struct svc_fh *fhp, unsigned int subclass)
{
struct dentry *dentry = fhp->fh_dentry;
struct inode *inode;
@@ -310,11 +311,17 @@ fh_lock(struct svc_fh *fhp)
}
inode = dentry->d_inode;
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, subclass);
fill_pre_wcc(fhp);
fhp->fh_locked = 1;
}
+static inline void
+fh_lock(struct svc_fh *fhp)
+{
+ fh_lock_nested(fhp, I_MUTEX_NORMAL);
+}
+
/*
* Unlock a file handle/inode
*/
diff --git a/include/linux/nfsd/stats.h b/include/linux/nfsd/stats.h
index 28a82fdd922f..7678cfbe9960 100644
--- a/include/linux/nfsd/stats.h
+++ b/include/linux/nfsd/stats.h
@@ -1,5 +1,5 @@
/*
- * linux/include/nfsd/stats.h
+ * linux/include/linux/nfsd/stats.h
*
* Statistics for NFS server.
*
diff --git a/include/linux/nfsd/syscall.h b/include/linux/nfsd/syscall.h
index dae0faea2807..8bcddccb6c42 100644
--- a/include/linux/nfsd/syscall.h
+++ b/include/linux/nfsd/syscall.h
@@ -38,21 +38,6 @@
#define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */
#define NFSCTL_GETFS 8 /* get an fh by path with max FH len */
-/*
- * Macros used to set version
- */
-#define NFSCTL_VERSET(_cltbits, _v) ((_cltbits) |= (1 << (_v)))
-#define NFSCTL_VERUNSET(_cltbits, _v) ((_cltbits) &= ~(1 << (_v)))
-#define NFSCTL_VERISSET(_cltbits, _v) ((_cltbits) & (1 << (_v)))
-
-#if defined(CONFIG_NFSD_V4)
-#define NFSCTL_VERALL (0x1c /* 0b011100 */)
-#elif defined(CONFIG_NFSD_V3)
-#define NFSCTL_VERALL (0x0c /* 0b001100 */)
-#else
-#define NFSCTL_VERALL (0x04 /* 0b000100 */)
-#endif
-
/* SVC */
struct nfsctl_svc {
unsigned short svc_port;
@@ -134,8 +119,6 @@ extern int exp_delclient(struct nfsctl_client *ncp);
extern int exp_export(struct nfsctl_export *nxp);
extern int exp_unexport(struct nfsctl_export *nxp);
-extern unsigned int nfsd_versbits;
-
#endif /* __KERNEL__ */
#endif /* NFSD_SYSCALL_H */
diff --git a/include/linux/nfsd/xdr.h b/include/linux/nfsd/xdr.h
index 3f4f7142bbe3..0e53de87d886 100644
--- a/include/linux/nfsd/xdr.h
+++ b/include/linux/nfsd/xdr.h
@@ -1,5 +1,5 @@
/*
- * linux/inxlude/linux/nfsd/xdr.h
+ * linux/include/linux/nfsd/xdr.h
*
* XDR types for nfsd. This is mainly a typing exercise.
*/
@@ -30,7 +30,6 @@ struct nfsd_readargs {
struct svc_fh fh;
__u32 offset;
__u32 count;
- struct kvec vec[RPCSVC_MAXPAGES];
int vlen;
};
@@ -38,7 +37,6 @@ struct nfsd_writeargs {
svc_fh fh;
__u32 offset;
int len;
- struct kvec vec[RPCSVC_MAXPAGES];
int vlen;
};
diff --git a/include/linux/nfsd/xdr3.h b/include/linux/nfsd/xdr3.h
index a4322741f8b9..474d882dc2f3 100644
--- a/include/linux/nfsd/xdr3.h
+++ b/include/linux/nfsd/xdr3.h
@@ -33,7 +33,6 @@ struct nfsd3_readargs {
struct svc_fh fh;
__u64 offset;
__u32 count;
- struct kvec vec[RPCSVC_MAXPAGES];
int vlen;
};
@@ -43,7 +42,6 @@ struct nfsd3_writeargs {
__u32 count;
int stable;
__u32 len;
- struct kvec vec[RPCSVC_MAXPAGES];
int vlen;
};
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 77adba7d2281..66e642762a07 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -241,7 +241,6 @@ struct nfsd4_read {
stateid_t rd_stateid; /* request */
u64 rd_offset; /* request */
u32 rd_length; /* request */
- struct kvec rd_iov[RPCSVC_MAXPAGES];
int rd_vlen;
struct file *rd_filp;
@@ -326,7 +325,6 @@ struct nfsd4_write {
u64 wr_offset; /* request */
u32 wr_stable_how; /* request */
u32 wr_buflen; /* request */
- struct kvec wr_vec[RPCSVC_MAXPAGES]; /* request */
int wr_vlen;
u32 wr_bytes_written; /* response */
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-04 21:56:52 +0300