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| author | J. Bruce Fields <bfields@redhat.com> | 2011-01-31 11:55:12 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-02-14 10:35:18 -0500 |
| commit | 22d38c4c10e8344aa406897d99a35d585d2cb77d (patch) | |
| tree | 9b591b2c218a3e1a80efab0b0cb69d2a73f3796e /fs/nfsd | |
| parent | 6b57d9c86d0ab11c091b6db2edff8b5553fd445b (diff) | |
| download | linux-22d38c4c10e8344aa406897d99a35d585d2cb77d.tar.gz linux-22d38c4c10e8344aa406897d99a35d585d2cb77d.tar.bz2 linux-22d38c4c10e8344aa406897d99a35d585d2cb77d.zip | |
nfsd4: add helper function for lease setup
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index ceb66170fda3..65978a9aa877 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2639,6 +2639,26 @@ static bool nfsd4_cb_channel_good(struct nfs4_client *clp) return clp->cl_minorversion && clp->cl_cb_state == NFSD4_CB_UNKNOWN; } +static struct file_lock *nfs4_alloc_init_lease(struct nfs4_delegation *dp, int flag) +{ + struct file_lock *fl; + + fl = locks_alloc_lock(); + if (!fl) + return NULL; + locks_init_lock(fl); + fl->fl_lmops = &nfsd_lease_mng_ops; + fl->fl_flags = FL_LEASE; + fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK; + fl->fl_end = OFFSET_MAX; + fl->fl_owner = (fl_owner_t)dp; + fl->fl_file = dp->dl_vfs_file; + BUG_ON(!fl->fl_file); + fl->fl_pid = current->tgid; + dp->dl_flock = fl; + return fl; +} + /* * Attempt to hand out a delegation. */ @@ -2684,20 +2704,9 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta goto out; } status = -ENOMEM; - fl = locks_alloc_lock(); + fl = nfs4_alloc_init_lease(dp, flag); if (!fl) goto out; - locks_init_lock(fl); - fl->fl_lmops = &nfsd_lease_mng_ops; - fl->fl_flags = FL_LEASE; - fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK; - fl->fl_end = OFFSET_MAX; - fl->fl_owner = (fl_owner_t)dp; - fl->fl_file = find_readable_file(stp->st_file); - BUG_ON(!fl->fl_file); - fl->fl_pid = current->tgid; - dp->dl_flock = fl; - /* vfs_setlease checks to see if delegation should be handed out. * the lock_manager callback fl_change is used */ |