[PATCH] fuse: miscellaneous cleanup

 - remove some unneeded assignments

 - use kzalloc instead of kmalloc + memset

 - simplify setting sb->s_fs_info

 - in fuse_send_init() use fuse_get_request() instead of
   do_get_request() helper

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 6 insertions, 15 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index d76432b757c9..4f1ca7b119ed 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -361,8 +361,8 @@ void request_send_background(struct fuse_conn *fc, struct fuse_req *req)
 void fuse_send_init(struct fuse_conn *fc)
 {
         /* This is called from fuse_read_super() so there's guaranteed
-           to be a request available */
-        struct fuse_req *req = do_get_request(fc);
+           to be exactly one request available */
+        struct fuse_req *req = fuse_get_request(fc);
         struct fuse_init_in *arg = &req->misc.init_in;
         arg->major = FUSE_KERNEL_VERSION;
         arg->minor = FUSE_KERNEL_MINOR_VERSION;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 74c8d098a14a..27937e8018eb 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -280,14 +280,9 @@ struct fuse_conn {
         struct backing_dev_info bdi;
 };
 
-static inline struct fuse_conn **get_fuse_conn_super_p(struct super_block *sb)
-{
-        return (struct fuse_conn **) &sb->s_fs_info;
-}
-
 static inline struct fuse_conn *get_fuse_conn_super(struct super_block *sb)
 {
-        return *get_fuse_conn_super_p(sb);
+        return sb->s_fs_info;
 }
 
 static inline struct fuse_conn *get_fuse_conn(struct inode *inode)
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 04c80cc957a3..ceee75df7b32 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -200,9 +200,6 @@ static void fuse_put_super(struct super_block *sb)
 
         spin_lock(&fuse_lock);
         fc->mounted = 0;
-        fc->user_id = 0;
-        fc->group_id = 0;
-        fc->flags = 0;
         /* Flush all readers on this fs */
         wake_up_all(&fc->waitq);
         up_write(&fc->sbput_sem);
@@ -379,16 +376,15 @@ static struct fuse_conn *new_conn(void)
 {
         struct fuse_conn *fc;
 
-        fc = kmalloc(sizeof(*fc), GFP_KERNEL);
+        fc = kzalloc(sizeof(*fc), GFP_KERNEL);
         if (fc != NULL) {
                 int i;
-                memset(fc, 0, sizeof(*fc));
                 init_waitqueue_head(&fc->waitq);
                 INIT_LIST_HEAD(&fc->pending);
                 INIT_LIST_HEAD(&fc->processing);
                 INIT_LIST_HEAD(&fc->unused_list);
                 INIT_LIST_HEAD(&fc->background);
-                sema_init(&fc->outstanding_sem, 0);
+                sema_init(&fc->outstanding_sem, 1); /* One for INIT */
                 init_rwsem(&fc->sbput_sem);
                 for (i = 0; i < FUSE_MAX_OUTSTANDING; i++) {
                         struct fuse_req *req = fuse_request_alloc();
@@ -420,7 +416,7 @@ static struct fuse_conn *get_conn(struct file *file, struct super_block *sb)
                 fc = ERR_PTR(-EINVAL);
         } else {
                 file->private_data = fc;
-                *get_fuse_conn_super_p(sb) = fc;
+                sb->s_fs_info = fc;
                 fc->mounted = 1;
                 fc->connected = 1;
                 fc->count = 2;