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| author |   Benjamin Coddington <bcodding@redhat.com> | 2019-05-23 10:45:45 -0400 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2019-07-03 17:52:08 -0400 |
| commit | 89e0edfbea103d9b274efa10a8fc7a88bdac8f76 (patch) | |
| tree | e13bb61003180e2cf10d5266af2a24052f5d4fff /fs/lockd/svc4proc.c | |
| parent | lockd: prepare nlm_lockowner for use by the server (diff) | |
| download | linux-dev-89e0edfbea103d9b274efa10a8fc7a88bdac8f76.tar.xz linux-dev-89e0edfbea103d9b274efa10a8fc7a88bdac8f76.zip | |
lockd: Convert NLM service fl_owner to nlm_lockowner
Do as the NLM client: allocate and track a struct nlm_lockowner for use as
the fl_owner for locks created by the NLM sever. This allows us to keep
the svid within this structure for matching locks, and will allow us to
track the pid of lockd in a future patch. It should also allow easier
reference of the nlm_host in conflicting locks, and simplify lock hashing
and comparison.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
[bfields@redhat.com: fix type of some error returns]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/lockd/svc4proc.c')
| -rw-r--r-- | fs/lockd/svc4proc.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c index 1bddf70d9656..a00134fd8956 100644 --- a/fs/lockd/svc4proc.c +++ b/fs/lockd/svc4proc.c @@ -46,8 +46,13 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp, /* Set up the missing parts of the file_lock structure */ lock->fl.fl_file = file->f_file; - lock->fl.fl_owner = (fl_owner_t) host; lock->fl.fl_lmops = &nlmsvc_lock_operations; + nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid); + if (!lock->fl.fl_owner) { + /* lockowner allocation has failed */ + nlmsvc_release_host(host); + return nlm_lck_denied_nolocks; + } } return 0; @@ -94,6 +99,7 @@ __nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp) else dprintk("lockd: TEST4 status %d\n", ntohl(resp->status)); + nlmsvc_release_lockowner(&argp->lock); nlmsvc_release_host(host); nlm_release_file(file); return rc; @@ -142,6 +148,7 @@ __nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp) else dprintk("lockd: LOCK status %d\n", ntohl(resp->status)); + nlmsvc_release_lockowner(&argp->lock); nlmsvc_release_host(host); nlm_release_file(file); return rc; @@ -178,6 +185,7 @@ __nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp) resp->status = nlmsvc_cancel_blocked(SVC_NET(rqstp), file, &argp->lock); dprintk("lockd: CANCEL status %d\n", ntohl(resp->status)); + nlmsvc_release_lockowner(&argp->lock); nlmsvc_release_host(host); nlm_release_file(file); return rpc_success; @@ -217,6 +225,7 @@ __nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp) resp->status = nlmsvc_unlock(SVC_NET(rqstp), file, &argp->lock); dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status)); + nlmsvc_release_lockowner(&argp->lock); nlmsvc_release_host(host); nlm_release_file(file); return rpc_success; @@ -365,6 +374,7 @@ nlm4svc_proc_share(struct svc_rqst *rqstp) resp->status = nlmsvc_share_file(host, file, argp); dprintk("lockd: SHARE status %d\n", ntohl(resp->status)); + nlmsvc_release_lockowner(&argp->lock); nlmsvc_release_host(host); nlm_release_file(file); return rpc_success; @@ -399,6 +409,7 @@ nlm4svc_proc_unshare(struct svc_rqst *rqstp) resp->status = nlmsvc_unshare_file(host, file, argp); dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status)); + nlmsvc_release_lockowner(&argp->lock); nlmsvc_release_host(host); nlm_release_file(file); return rpc_success; |