diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-04-16 16:22:48 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-05-14 15:09:23 -0400 |
| commit | 4f727296d2428b60138793a0a1207a4085eacf99 (patch) | |
| tree | 52c69d21dd90164fed413925ed194866d7a11136 | |
| parent | 8bac9db9cf85f2518cb523bb1d69c481975c1f9a (diff) | |
NFSv4: Reduce the stack footprint of nfs4_remote_referral_get_sb
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/super.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index fa3111eea29..dd589dee1ee 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2880,17 +2880,21 @@ static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type, struct super_block *s; struct nfs_server *server; struct dentry *mntroot; - struct nfs_fh mntfh; + struct nfs_fh *mntfh; int (*compare_super)(struct super_block *, void *) = nfs_compare_super; struct nfs_sb_mountdata sb_mntdata = { .mntflags = flags, }; - int error; + int error = -ENOMEM; dprintk("--> nfs4_referral_get_sb()\n"); + mntfh = nfs_alloc_fhandle(); + if (mntfh == NULL) + goto out_err_nofh; + /* create a new volume representation */ - server = nfs4_create_referral_server(data, &mntfh); + server = nfs4_create_referral_server(data, mntfh); if (IS_ERR(server)) { error = PTR_ERR(server); goto out_err_noserver; @@ -2922,7 +2926,7 @@ static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type, nfs_fscache_get_super_cookie(s, NULL, data); } - mntroot = nfs4_get_root(s, &mntfh); + mntroot = nfs4_get_root(s, mntfh); if (IS_ERR(mntroot)) { error = PTR_ERR(mntroot); goto error_splat_super; @@ -2939,12 +2943,15 @@ static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type, security_sb_clone_mnt_opts(data->sb, s); + nfs_free_fhandle(mntfh); dprintk("<-- nfs4_referral_get_sb() = 0\n"); return 0; out_err_nosb: nfs_free_server(server); out_err_noserver: + nfs_free_fhandle(mntfh); +out_err_nofh: dprintk("<-- nfs4_referral_get_sb() = %d [error]\n", error); return error; @@ -2953,6 +2960,7 @@ error_splat_super: bdi_unregister(&server->backing_dev_info); error_splat_bdi: deactivate_locked_super(s); + nfs_free_fhandle(mntfh); dprintk("<-- nfs4_referral_get_sb() = %d [splat]\n", error); return error; } |