diff options
| author |   Christoph Hellwig <hch@lst.de> | 2014-05-07 13:49:44 +0200 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2014-05-08 12:43:03 -0400 |
| commit | 5409e46f1bcf960c651f3fff35f2f25e539655cf (patch) | |
| tree | 2ed81c5a35f0adafcf63347b0407c8b6c2ea6156 /fs/nfsd/nfsfh.c | |
| parent | NFSD: cleanup unneeded including linux/export.h (diff) | |
| download | wireguard-linux-5409e46f1bcf960c651f3fff35f2f25e539655cf.tar.xz wireguard-linux-5409e46f1bcf960c651f3fff35f2f25e539655cf.zip | |
nfsd: clean up fh_auth usage
Use fh_fsid when reffering to the fsid part of the filehandle. The
variable length auth field envisioned in nfsfh wasn't ever implemented.
Also clean up some lose ends around this and document the file handle
format better.
Btw, why do we even export nfsfh.h to userspace? The file handle very
much is kernel private, and nothing in nfs-utils include the header
either.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfsfh.c')
| -rw-r--r-- | fs/nfsd/nfsfh.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index 3c37b160dcad..a337106d6875 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -169,8 +169,8 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp) data_left -= len; if (data_left < 0) return error; - exp = rqst_exp_find(rqstp, fh->fh_fsid_type, fh->fh_auth); - fid = (struct fid *)(fh->fh_auth + len); + exp = rqst_exp_find(rqstp, fh->fh_fsid_type, fh->fh_fsid); + fid = (struct fid *)(fh->fh_fsid + len); } else { __u32 tfh[2]; dev_t xdev; @@ -385,7 +385,7 @@ static void _fh_update(struct svc_fh *fhp, struct svc_export *exp, { if (dentry != exp->ex_path.dentry) { struct fid *fid = (struct fid *) - (fhp->fh_handle.fh_auth + fhp->fh_handle.fh_size/4 - 1); + (fhp->fh_handle.fh_fsid + fhp->fh_handle.fh_size/4 - 1); int maxsize = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4; int subtreecheck = !(exp->ex_flags & NFSEXP_NOSUBTREECHECK); @@ -513,7 +513,6 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, */ struct inode * inode = dentry->d_inode; - __u32 *datap; dev_t ex_dev = exp_sb(exp)->s_dev; dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %pd2, ino=%ld)\n", @@ -557,17 +556,16 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, if (inode) _fh_update_old(dentry, exp, &fhp->fh_handle); } else { - int len; + fhp->fh_handle.fh_size = + key_len(fhp->fh_handle.fh_fsid_type) + 4; fhp->fh_handle.fh_auth_type = 0; - datap = fhp->fh_handle.fh_auth+0; - mk_fsid(fhp->fh_handle.fh_fsid_type, datap, ex_dev, + + mk_fsid(fhp->fh_handle.fh_fsid_type, + fhp->fh_handle.fh_fsid, + ex_dev, exp->ex_path.dentry->d_inode->i_ino, exp->ex_fsid, exp->ex_uuid); - len = key_len(fhp->fh_handle.fh_fsid_type); - datap += len/4; - fhp->fh_handle.fh_size = 4 + len; - if (inode) _fh_update(fhp, exp, dentry); if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID) { |