[PATCH] dm mpath: tidy ctr

After initialising m->ti, there's no need to pass it in subsequent calls to
static functions used for parsing parameters.

Signed-off-by: Micha³ Miros³aw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index fb9582a..d1dc72c 100644 (file)
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -168,7 +168,7 @@ static void free_priority_group(struct priority_group *pg,
        kfree(pg);
 }
 
-static struct multipath *alloc_multipath(void)
+static struct multipath *alloc_multipath(struct dm_target *ti)
 {
        struct multipath *m;
 
@@ -185,6 +185,8 @@ static struct multipath *alloc_multipath(void)
                        kfree(m);
                        return NULL;
                }
+               m->ti = ti;
+               ti->private = m;
        }
 
        return m;
@@ -557,8 +559,7 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps,
 }
 
 static struct priority_group *parse_priority_group(struct arg_set *as,
-                                                  struct multipath *m,
-                                                  struct dm_target *ti)
+                                                  struct multipath *m)
 {
        static struct param _params[] = {
                {1, 1024, "invalid number of paths"},
@@ -568,6 +569,7 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
        int r;
        unsigned i, nr_selector_args, nr_params;
        struct priority_group *pg;
+       struct dm_target *ti = m->ti;
 
        if (as->argc < 2) {
                as->argc = 0;
@@ -624,12 +626,12 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
        return NULL;
 }
 
-static int parse_hw_handler(struct arg_set *as, struct multipath *m,
-                           struct dm_target *ti)
+static int parse_hw_handler(struct arg_set *as, struct multipath *m)
 {
        int r;
        struct hw_handler_type *hwht;
        unsigned hw_argc;
+       struct dm_target *ti = m->ti;
 
        static struct param _params[] = {
                {0, 1024, "invalid number of hardware handler args"},
@@ -661,11 +663,11 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m,
        return 0;
 }
 
-static int parse_features(struct arg_set *as, struct multipath *m,
-                         struct dm_target *ti)
+static int parse_features(struct arg_set *as, struct multipath *m)
 {
        int r;
        unsigned argc;
+       struct dm_target *ti = m->ti;
 
        static struct param _params[] = {
                {0, 1, "invalid number of feature args"},
@@ -704,19 +706,17 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
        as.argc = argc;
        as.argv = argv;
 
-       m = alloc_multipath();
+       m = alloc_multipath(ti);
        if (!m) {
                ti->error = "can't allocate multipath";
                return -EINVAL;
        }
 
-       m->ti = ti;
-
-       r = parse_features(&as, m, ti);
+       r = parse_features(&as, m);
        if (r)
                goto bad;
 
-       r = parse_hw_handler(&as, m, ti);
+       r = parse_hw_handler(&as, m);
        if (r)
                goto bad;
 
@@ -732,7 +732,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
        while (as.argc) {
                struct priority_group *pg;
 
-               pg = parse_priority_group(&as, m, ti);
+               pg = parse_priority_group(&as, m);
                if (!pg) {
                        r = -EINVAL;
                        goto bad;
@@ -752,8 +752,6 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
                goto bad;
        }
 
-       ti->private = m;
-
        return 0;
 
  bad: