diff options
| author | Jeff Layton | 2014-08-09 16:22:41 +0200 |
|---|---|---|
| committer | J. Bruce Fields | 2014-08-17 18:00:14 +0200 |
| commit | afbda402a02bde74f350ff98243265dfd3108fb3 (patch) | |
| tree | d5b1adf4fd21730c7ac49a82a43890ba3e694a37 /fs/nfsd/nfs4state.c | |
| parent | nfsd: protect lease-related nfs4_file fields with fi_lock (diff) | |
| download | kernel-qcow2-linux-afbda402a02bde74f350ff98243265dfd3108fb3.tar.gz kernel-qcow2-linux-afbda402a02bde74f350ff98243265dfd3108fb3.tar.xz kernel-qcow2-linux-afbda402a02bde74f350ff98243265dfd3108fb3.zip | |
nfsd: call nfs4_put_deleg_lease outside of state_lock
Currently, we hold the state_lock when releasing the lease. That's
potentially problematic in the future if we allow for setlease methods
that can sleep. Move the nfs4_put_deleg_lease call out of the delegation
unhashing routine (which was always a bit goofy anyway), and into the
unlocked sections of the callers of unhash_delegation_locked.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 309ec3b1090a..4356d32479b2 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -722,7 +722,6 @@ unhash_delegation_locked(struct nfs4_delegation *dp) list_del_init(&dp->dl_recall_lru); list_del_init(&dp->dl_perfile); spin_unlock(&fp->fi_lock); - nfs4_put_deleg_lease(fp); } static void destroy_delegation(struct nfs4_delegation *dp) @@ -730,6 +729,7 @@ static void destroy_delegation(struct nfs4_delegation *dp) spin_lock(&state_lock); unhash_delegation_locked(dp); spin_unlock(&state_lock); + nfs4_put_deleg_lease(dp->dl_stid.sc_file); nfs4_put_stid(&dp->dl_stid); } @@ -739,6 +739,8 @@ static void revoke_delegation(struct nfs4_delegation *dp) WARN_ON(!list_empty(&dp->dl_recall_lru)); + nfs4_put_deleg_lease(dp->dl_stid.sc_file); + if (clp->cl_minorversion == 0) nfs4_put_stid(&dp->dl_stid); else { @@ -1639,6 +1641,7 @@ __destroy_client(struct nfs4_client *clp) while (!list_empty(&reaplist)) { dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru); list_del_init(&dp->dl_recall_lru); + nfs4_put_deleg_lease(dp->dl_stid.sc_file); nfs4_put_stid(&dp->dl_stid); } while (!list_empty(&clp->cl_revoked)) { @@ -6406,6 +6409,7 @@ nfs4_state_shutdown_net(struct net *net) list_for_each_safe(pos, next, &reaplist) { dp = list_entry (pos, struct nfs4_delegation, dl_recall_lru); list_del_init(&dp->dl_recall_lru); + nfs4_put_deleg_lease(dp->dl_stid.sc_file); nfs4_put_stid(&dp->dl_stid); } |