[PATCH 2/3] ceph: add acl, noacl options for cephfs mount

[Guangliang Zhao]

Signed-off-by: Guangliang Zhao <lucienc...@gmail.com>
---
 fs/ceph/super.c |   24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 2df963f..9d65c08 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -144,7 +144,9 @@ enum {
        Opt_ino32,
        Opt_noino32,
        Opt_fscache,
-       Opt_nofscache
+       Opt_nofscache,
+       Opt_acl,
+       Opt_noacl
 };
 
 static match_table_t fsopt_tokens = {
@@ -172,6 +174,8 @@ static match_table_t fsopt_tokens = {
        {Opt_noino32, "noino32"},
        {Opt_fscache, "fsc"},
        {Opt_nofscache, "nofsc"},
+       {Opt_acl, "acl"},
+       {Opt_noacl, "noacl"},
        {-1, NULL}
 };
 
@@ -271,6 +275,12 @@ static int parse_fsopt_token(char *c, void *private)
        case Opt_nofscache:
                fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE;
                break;
+       case Opt_acl:
+               fsopt->sb_flags |= MS_POSIXACL;
+               break;
+       case Opt_noacl:
+               fsopt->sb_flags &= ~MS_POSIXACL;
+               break;
        default:
                BUG_ON(token);
        }
@@ -438,6 +448,11 @@ static int ceph_show_options(struct seq_file *m, struct 
dentry *root)
        else
                seq_puts(m, ",nofsc");
 
+       if (fsopt->sb_flags & MS_POSIXACL)
+               seq_puts(m, ",acl");
+       else
+               seq_puts(m, ",noacl");
+
        if (fsopt->wsize)
                seq_printf(m, ",wsize=%d", fsopt->wsize);
        if (fsopt->rsize != CEPH_RSIZE_DEFAULT)
@@ -819,9 +834,6 @@ static int ceph_set_super(struct super_block *s, void *data)
 
        s->s_flags = fsc->mount_options->sb_flags;
        s->s_maxbytes = 1ULL << 40;  /* temp value until we get mdsmap */
-#ifdef CONFIG_CEPH_FS_POSIX_ACL
-       s->s_flags |= MS_POSIXACL;
-#endif
 
        s->s_xattr = ceph_xattr_handlers;
        s->s_fs_info = fsc;
@@ -911,6 +923,10 @@ static struct dentry *ceph_mount(struct file_system_type 
*fs_type,
        struct ceph_options *opt = NULL;
 
        dout("ceph_mount\n");
+
+#ifdef CONFIG_CEPH_FS_POSIX_ACL
+       flags |= MS_POSIXACL;
+#endif
        err = parse_mount_options(&fsopt, &opt, flags, data, dev_name, &path);
        if (err < 0) {
                res = ERR_PTR(err);
-- 
1.7.9.5

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