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authorChuck Lever <chuck.lever@oracle.com>2022-03-28 22:36:58 +0300
committerChuck Lever <chuck.lever@oracle.com>2022-05-20 20:18:25 +0300
commit1c388f27759c5d9271d4fca081f7ee138986eb7d (patch)
treeee9cffbbc5ba199c225064f475913d16e1c622b6 /fs/nfsd/vfs.c
parent254454a5aa4a9f696d6bae080c08d5863e650f49 (diff)
downloadlinux-1c388f27759c5d9271d4fca081f7ee138986eb7d.tar.xz
NFSD: Remove do_nfsd_create()
Now that its two callers have their own version-specific instance of this function, do_nfsd_create() is no longer used. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/vfs.c')
-rw-r--r--fs/nfsd/vfs.c150
1 files changed, 0 insertions, 150 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 83c989a5d6f3..0b0dbb8e0894 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1388,156 +1388,6 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
/*
- * NFSv3 and NFSv4 version of nfsd_create
- */
-__be32
-do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
- char *fname, int flen, struct iattr *iap,
- struct svc_fh *resfhp, int createmode, u32 *verifier,
- bool *truncp, bool *created)
-{
- struct dentry *dentry, *dchild = NULL;
- struct inode *dirp;
- __be32 err;
- int host_err;
- __u32 v_mtime=0, v_atime=0;
-
- err = nfserr_perm;
- if (!flen)
- goto out;
- err = nfserr_exist;
- if (isdotent(fname, flen))
- goto out;
- if (!(iap->ia_valid & ATTR_MODE))
- iap->ia_mode = 0;
- err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC);
- if (err)
- goto out;
-
- dentry = fhp->fh_dentry;
- dirp = d_inode(dentry);
-
- host_err = fh_want_write(fhp);
- if (host_err)
- goto out_nfserr;
-
- fh_lock_nested(fhp, I_MUTEX_PARENT);
-
- /*
- * Compose the response file handle.
- */
- dchild = lookup_one_len(fname, dentry, flen);
- host_err = PTR_ERR(dchild);
- if (IS_ERR(dchild))
- goto out_nfserr;
-
- /* If file doesn't exist, check for permissions to create one */
- if (d_really_is_negative(dchild)) {
- err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
- if (err)
- goto out;
- }
-
- err = fh_compose(resfhp, fhp->fh_export, dchild, fhp);
- if (err)
- goto out;
-
- if (nfsd_create_is_exclusive(createmode)) {
- /* solaris7 gets confused (bugid 4218508) if these have
- * the high bit set, as do xfs filesystems without the
- * "bigtime" feature. So just clear the high bits. If this is
- * ever changed to use different attrs for storing the
- * verifier, then do_open_lookup() will also need to be fixed
- * accordingly.
- */
- v_mtime = verifier[0]&0x7fffffff;
- v_atime = verifier[1]&0x7fffffff;
- }
-
- if (d_really_is_positive(dchild)) {
- err = 0;
-
- switch (createmode) {
- case NFS3_CREATE_UNCHECKED:
- if (! d_is_reg(dchild))
- goto out;
- else if (truncp) {
- /* in nfsv4, we need to treat this case a little
- * differently. we don't want to truncate the
- * file now; this would be wrong if the OPEN
- * fails for some other reason. furthermore,
- * if the size is nonzero, we should ignore it
- * according to spec!
- */
- *truncp = (iap->ia_valid & ATTR_SIZE) && !iap->ia_size;
- }
- else {
- iap->ia_valid &= ATTR_SIZE;
- goto set_attr;
- }
- break;
- case NFS3_CREATE_EXCLUSIVE:
- if ( d_inode(dchild)->i_mtime.tv_sec == v_mtime
- && d_inode(dchild)->i_atime.tv_sec == v_atime
- && d_inode(dchild)->i_size == 0 ) {
- if (created)
- *created = true;
- break;
- }
- fallthrough;
- case NFS4_CREATE_EXCLUSIVE4_1:
- if ( d_inode(dchild)->i_mtime.tv_sec == v_mtime
- && d_inode(dchild)->i_atime.tv_sec == v_atime
- && d_inode(dchild)->i_size == 0 ) {
- if (created)
- *created = true;
- goto set_attr;
- }
- fallthrough;
- case NFS3_CREATE_GUARDED:
- err = nfserr_exist;
- }
- goto out;
- }
-
- if (!IS_POSIXACL(dirp))
- iap->ia_mode &= ~current_umask();
-
- host_err = vfs_create(&init_user_ns, dirp, dchild, iap->ia_mode, true);
- if (host_err < 0)
- goto out_nfserr;
- if (created)
- *created = true;
-
- nfsd_check_ignore_resizing(iap);
-
- if (nfsd_create_is_exclusive(createmode)) {
- /* Cram the verifier into atime/mtime */
- iap->ia_valid = ATTR_MTIME|ATTR_ATIME
- | ATTR_MTIME_SET|ATTR_ATIME_SET;
- /* XXX someone who knows this better please fix it for nsec */
- iap->ia_mtime.tv_sec = v_mtime;
- iap->ia_atime.tv_sec = v_atime;
- iap->ia_mtime.tv_nsec = 0;
- iap->ia_atime.tv_nsec = 0;
- }
-
- set_attr:
- err = nfsd_create_setattr(rqstp, fhp, resfhp, iap);
-
- out:
- fh_unlock(fhp);
- if (dchild && !IS_ERR(dchild))
- dput(dchild);
- fh_drop_write(fhp);
- return err;
-
- out_nfserr:
- err = nfserrno(host_err);
- goto out;
-}
-
-/*
* Read a symlink. On entry, *lenp must contain the maximum path length that
* fits into the buffer. On return, it contains the true length.
* N.B. After this call fhp needs an fh_put