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authorNeilBrown <neilb@suse.de>2022-07-26 08:45:30 +0200
committerChuck Lever <chuck.lever@oracle.com>2022-07-30 02:17:00 +0200
commit7fe2a71dda349a1afa75781f0cc7975be9784d15 (patch)
treeaf8092ef6f20bb3fb50224d845ac3bc21a33ccb8 /fs/nfsd/vfs.h
parentNFSD: verify the opened dentry after setting a delegation (diff)
downloadlinux-7fe2a71dda349a1afa75781f0cc7975be9784d15.tar.xz
linux-7fe2a71dda349a1afa75781f0cc7975be9784d15.zip
NFSD: introduce struct nfsd_attrs
The attributes that nfsd might want to set on a file include 'struct iattr' as well as an ACL and security label. The latter two are passed around quite separately from the first, in part because they are only needed for NFSv4. This leads to some clumsiness in the code, such as the attributes NOT being set in nfsd_create_setattr(). We need to keep the directory locked until all attributes are set to ensure the file is never visibile without all its attributes. This need combined with the inconsistent handling of attributes leads to more clumsiness. As a first step towards tidying this up, introduce 'struct nfsd_attrs'. This is passed (by reference) to vfs.c functions that work with attributes, and is assembled by the various nfs*proc functions which call them. As yet only iattr is included, but future patches will expand this. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/vfs.h')
-rw-r--r--fs/nfsd/vfs.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index 26347d76f44a..d8b1a36fca95 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -42,6 +42,10 @@ struct nfsd_file;
typedef int (*nfsd_filldir_t)(void *, const char *, int, loff_t, u64, unsigned);
/* nfsd/vfs.c */
+struct nfsd_attrs {
+ struct iattr *na_iattr; /* input */
+};
+
int nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
struct svc_export **expp);
__be32 nfsd_lookup(struct svc_rqst *, struct svc_fh *,
@@ -50,7 +54,7 @@ __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 iattr *, int, time64_t);
+ struct nfsd_attrs *, int, time64_t);
int nfsd_mountpoint(struct dentry *, struct svc_export *);
#ifdef CONFIG_NFSD_V4
__be32 nfsd4_set_nfs4_label(struct svc_rqst *, struct svc_fh *,
@@ -63,14 +67,14 @@ __be32 nfsd4_clone_file_range(struct svc_rqst *rqstp,
u64 count, bool sync);
#endif /* CONFIG_NFSD_V4 */
__be32 nfsd_create_locked(struct svc_rqst *, struct svc_fh *,
- char *name, int len, struct iattr *attrs,
+ char *name, int len, 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 iattr *attrs,
+ 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 iattr *iap);
+ struct svc_fh *resfhp, struct nfsd_attrs *iap);
__be32 nfsd_commit(struct svc_rqst *rqst, struct svc_fh *fhp,
u64 offset, u32 count, __be32 *verf);
#ifdef CONFIG_NFSD_V4