Commit c815afc7 authored by NeilBrown's avatar NeilBrown Committed by Linus Torvalds
Browse files

[PATCH] nfsd4: block metadata ops during grace period



We currently return err_grace if a user attempts a non-reclaim open during the
grace period.  But we also need to prevent renames and removes, at least, to
ensure clients have the chance to recover state on files before they are moved
or deleted.

Of course, local users could also do renames and removes during the lease
period, and there's not much we can do about that.  This at least will help
with remote users.
Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: default avatarNeil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 49640001
......@@ -536,6 +536,8 @@ nfsd4_remove(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_rem
{
int status;
if (nfs4_in_grace())
return nfserr_grace;
status = nfsd_unlink(rqstp, current_fh, 0, remove->rm_name, remove->rm_namelen);
if (status == nfserr_symlink)
return nfserr_notdir;
......@@ -554,6 +556,9 @@ nfsd4_rename(struct svc_rqst *rqstp, struct svc_fh *current_fh,
if (!save_fh->fh_dentry)
return status;
if (nfs4_in_grace() && !(save_fh->fh_export->ex_flags
& NFSEXP_NOSUBTREECHECK))
return nfserr_grace;
status = nfsd_rename(rqstp, save_fh, rename->rn_sname,
rename->rn_snamelen, current_fh,
rename->rn_tname, rename->rn_tnamelen);
......
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