diff options
| author | Dai Ngo <dai.ngo@oracle.com> | 2022-05-03 00:19:23 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-05-19 19:25:39 +0300 |
| commit | d76cc46b37e123e8d245cc3490978dbda56f979d (patch) | |
| tree | 166f6aabe26e70a841624f5307879a906a88e1c2 /fs/nfsd/nfs4state.c | |
| parent | 3d69427151806656abf129342028f3f4e5e1fee0 (diff) | |
| download | linux-d76cc46b37e123e8d245cc3490978dbda56f979d.tar.xz | |
NFSD: move create/destroy of laundry_wq to init_nfsd and exit_nfsd
This patch moves create/destroy of laundry_wq from nfs4_state_start
and nfs4_state_shutdown_net to init_nfsd and exit_nfsd to prevent
the laundromat from being freed while a thread is processing a
conflicting lock.
Reviewed-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index fe7949683c01..76c98ab7991b 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -127,6 +127,21 @@ static const struct nfsd4_callback_ops nfsd4_cb_notify_lock_ops; static struct workqueue_struct *laundry_wq; +int nfsd4_create_laundry_wq(void) +{ + int rc = 0; + + laundry_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, "nfsd4"); + if (laundry_wq == NULL) + rc = -ENOMEM; + return rc; +} + +void nfsd4_destroy_laundry_wq(void) +{ + destroy_workqueue(laundry_wq); +} + static bool is_session_dead(struct nfsd4_session *ses) { return ses->se_flags & NFS4_SESSION_DEAD; @@ -7747,22 +7762,12 @@ nfs4_state_start(void) { int ret; - laundry_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, "nfsd4"); - if (laundry_wq == NULL) { - ret = -ENOMEM; - goto out; - } ret = nfsd4_create_callback_queue(); if (ret) - goto out_free_laundry; + return ret; set_max_delegations(); return 0; - -out_free_laundry: - destroy_workqueue(laundry_wq); -out: - return ret; } void @@ -7799,7 +7804,6 @@ nfs4_state_shutdown_net(struct net *net) void nfs4_state_shutdown(void) { - destroy_workqueue(laundry_wq); nfsd4_destroy_callback_queue(); } |