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| author | NeilBrown <neilb@cse.unsw.edu.au> | 2005-06-23 22:03:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-24 00:06:28 -0700 |
| commit | c815afc73eeef089922449857ca4ed4d2e8950cb (patch) | |
| tree | 7cdaa0ab416d54b1966c399f61b05510b6d7c7a9 /fs/nfsd/nfs4proc.c | |
| parent | 496400014f22c4dbdbc1e89249a2feba46939708 (diff) | |
| download | lwn-c815afc73eeef089922449857ca4ed4d2e8950cb.tar.gz lwn-c815afc73eeef089922449857ca4ed4d2e8950cb.zip | |
[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: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index eb8c1337d9ba..ac4878ac2213 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -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); |