fs/nfsd/vfs.h

Source file repositories/reference/linux-study-clean/fs/nfsd/vfs.h

File Facts

System
Linux kernel
Corpus path
fs/nfsd/vfs.h
Extension
.h
Size
6169 bytes
Lines
169
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct nfsd_attrs {
	struct iattr		*na_iattr;	/* input */
	struct xdr_netobj	*na_seclabel;	/* input */
	struct posix_acl	*na_pacl;	/* input */
	struct posix_acl	*na_dpacl;	/* input */

	int			na_labelerr;	/* output */
	int			na_dpaclerr;	/* output */
	int			na_paclerr;	/* output */
};

static inline void nfsd_attrs_free(struct nfsd_attrs *attrs)
{
	posix_acl_release(attrs->na_pacl);
	posix_acl_release(attrs->na_dpacl);
}

static inline bool nfsd_attrs_valid(struct nfsd_attrs *attrs)
{
	struct iattr *iap = attrs->na_iattr;

	return (iap->ia_valid || (attrs->na_seclabel &&
		attrs->na_seclabel->len) ||
		attrs->na_pacl || attrs->na_dpacl);
}

__be32		nfserrno (int errno);
int		nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
		                struct svc_export **expp);
__be32		nfsd_lookup(struct svc_rqst *, struct svc_fh *,
				const char *, unsigned int, struct svc_fh *);
__be32		 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *,
				const char *, unsigned int,
				struct svc_export **, struct dentry **);
__be32		nfsd_setattr(struct svc_rqst *, struct svc_fh *,
			     struct nfsd_attrs *, const struct timespec64 *);
int nfsd_mountpoint(struct dentry *, struct svc_export *);
#ifdef CONFIG_NFSD_V4
__be32		nfsd4_vfs_fallocate(struct svc_rqst *, struct svc_fh *,
				    struct file *, loff_t, loff_t, int);
__be32		nfsd4_clone_file_range(struct svc_rqst *rqstp,
				       struct nfsd_file *nf_src, u64 src_pos,
				       struct nfsd_file *nf_dst, u64 dst_pos,
				       u64 count, bool sync);
#endif /* CONFIG_NFSD_V4 */
__be32		nfsd_create_locked(struct svc_rqst *, struct svc_fh *,
				struct nfsd_attrs *attrs, int type, dev_t rdev,
				struct svc_fh *res);
__be32		nfsd_create(struct svc_rqst *, struct svc_fh *,
				char *name, int len, struct nfsd_attrs *attrs,
				int type, dev_t rdev, struct svc_fh *res);
__be32		nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
__be32		nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
				struct svc_fh *resfhp, struct nfsd_attrs *iap);
__be32		nfsd_commit(struct svc_rqst *rqst, struct svc_fh *fhp,
				struct nfsd_file *nf, u64 offset, u32 count,
				__be32 *verf);
#ifdef CONFIG_NFSD_V4
__be32		nfsd_getxattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
			    char *name, void **bufp, int *lenp);
__be32		nfsd_listxattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
			    char **bufp, int *lenp);
__be32		nfsd_removexattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
			    char *name);
__be32		nfsd_setxattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
			    char *name, void *buf, u32 len, u32 flags);
#endif
int 		nfsd_open_break_lease(struct inode *, int);
__be32		nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t,
				int, struct file **);
int		nfsd_open_verified(struct svc_fh *fhp, umode_t type, int may_flags,
				struct file **filp);
__be32		nfsd_splice_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
				struct file *file, loff_t offset,
				unsigned long *count,
				u32 *eof);
__be32		nfsd_iter_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
				struct nfsd_file *nf, loff_t offset,
				unsigned long *count, unsigned int base,
				u32 *eof);
bool		nfsd_read_splice_ok(struct svc_rqst *rqstp);
__be32		nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
				loff_t offset, unsigned long *count,
				u32 *eof);
__be32		nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
				loff_t offset, const struct xdr_buf *payload,
				unsigned long *cnt, int stable, __be32 *verf);
__be32		nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
				struct nfsd_file *nf, loff_t offset,
				const struct xdr_buf *payload,

Annotation

Implementation Notes