5 files changed, 111 insertions, 208 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 6b8843d4ad8c..4dc104c0e95d 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -72,10 +72,8 @@ static void restore_sigs(sigset_t *oldset)
  */
 void fuse_reset_request(struct fuse_req *req)
 {
-        int preallocated = req->preallocated;
         BUG_ON(atomic_read(&req->count) != 1);
         fuse_request_init(req);
-        req->preallocated = preallocated;
 }
 
 static void __fuse_get_request(struct fuse_req *req)
@@ -90,71 +88,28 @@ static void __fuse_put_request(struct fuse_req *req)
         atomic_dec(&req->count);
 }
 
-static struct fuse_req *do_get_request(struct fuse_conn *fc)
+struct fuse_req *fuse_get_req(struct fuse_conn *fc)
 {
-        struct fuse_req *req;
+        struct fuse_req *req = fuse_request_alloc();
+        if (!req)
+                return ERR_PTR(-ENOMEM);
 
-        spin_lock(&fc->lock);
-        BUG_ON(list_empty(&fc->unused_list));
-        req = list_entry(fc->unused_list.next, struct fuse_req, list);
-        list_del_init(&req->list);
-        spin_unlock(&fc->lock);
+        atomic_inc(&fc->num_waiting);
         fuse_request_init(req);
-        req->preallocated = 1;
         req->in.h.uid = current->fsuid;
         req->in.h.gid = current->fsgid;
         req->in.h.pid = current->pid;
         return req;
 }
 
-/* This can return NULL, but only in case it's interrupted by a SIGKILL */
-struct fuse_req *fuse_get_request(struct fuse_conn *fc)
-{
-        int intr;
-        sigset_t oldset;
-
-        atomic_inc(&fc->num_waiting);
-        block_sigs(&oldset);
-        intr = down_interruptible(&fc->outstanding_sem);
-        restore_sigs(&oldset);
-        if (intr) {
-                atomic_dec(&fc->num_waiting);
-                return NULL;
-        }
-        return do_get_request(fc);
-}
-
-/* Must be called with fc->lock held */
-static void fuse_putback_request(struct fuse_conn *fc, struct fuse_req *req)
-{
-        if (req->preallocated) {
-                atomic_dec(&fc->num_waiting);
-                list_add(&req->list, &fc->unused_list);
-        } else
-                fuse_request_free(req);
-
-        /* If we are in debt decrease that first */
-        if (fc->outstanding_debt)
-                fc->outstanding_debt--;
-        else
-                up(&fc->outstanding_sem);
-}
-
 void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
 {
         if (atomic_dec_and_test(&req->count)) {
-                spin_lock(&fc->lock);
-                fuse_putback_request(fc, req);
-                spin_unlock(&fc->lock);
+                atomic_dec(&fc->num_waiting);
+                fuse_request_free(req);
         }
 }
 
-static void fuse_put_request_locked(struct fuse_conn *fc, struct fuse_req *req)
-{
-        if (atomic_dec_and_test(&req->count))
-                fuse_putback_request(fc, req);
-}
-
 void fuse_release_background(struct fuse_conn *fc, struct fuse_req *req)
 {
         iput(req->inode);
@@ -189,9 +144,9 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
         list_del(&req->list);
         req->state = FUSE_REQ_FINISHED;
         if (!req->background) {
-                wake_up(&req->waitq);
-                fuse_put_request_locked(fc, req);
                 spin_unlock(&fc->lock);
+                wake_up(&req->waitq);
+                fuse_put_request(fc, req);
         } else {
                 void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
                 req->end = NULL;
@@ -302,16 +257,6 @@ static void queue_request(struct fuse_conn *fc, struct fuse_req *req)
         req->in.h.unique = fc->reqctr;
         req->in.h.len = sizeof(struct fuse_in_header) +
                 len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
-        if (!req->preallocated) {
-                /* If request is not preallocated (either FORGET or
-                   RELEASE), then still decrease outstanding_sem, so
-                   user can't open infinite number of files while not
-                   processing the RELEASE requests.  However for
-                   efficiency do it without blocking, so if down()
-                   would block, just increase the debt instead */
-                if (down_trylock(&fc->outstanding_sem))
-                        fc->outstanding_debt++;
-        }
         list_add_tail(&req->list, &fc->pending);
         req->state = FUSE_REQ_PENDING;
         wake_up(&fc->waitq);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 256355b80256..8d7546e832e8 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -117,8 +117,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
                         return 0;
 
                 fc = get_fuse_conn(inode);
-                req = fuse_get_request(fc);
-                if (!req)
+                req = fuse_get_req(fc);
+                if (IS_ERR(req))
                         return 0;
 
                 fuse_lookup_init(req, entry->d_parent->d_inode, entry, &outarg);
@@ -188,9 +188,9 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
         if (entry->d_name.len > FUSE_NAME_MAX)
                 return ERR_PTR(-ENAMETOOLONG);
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return ERR_PTR(-EINTR);
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return ERR_PTR(PTR_ERR(req));
 
         fuse_lookup_init(req, dir, entry, &outarg);
         request_send(fc, req);
@@ -244,15 +244,14 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
         struct file *file;
         int flags = nd->intent.open.flags - 1;
 
-        err = -ENOSYS;
         if (fc->no_create)
-                goto out;
+                return -ENOSYS;
 
-        err = -EINTR;
-        req = fuse_get_request(fc);
-        if (!req)
-                goto out;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
+        err = -ENOMEM;
         ff = fuse_file_alloc();
         if (!ff)
                 goto out_put_request;
@@ -314,7 +313,6 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
         fuse_file_free(ff);
  out_put_request:
         fuse_put_request(fc, req);
- out:
         return err;
 }
 
@@ -375,9 +373,9 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode,
 {
         struct fuse_mknod_in inarg;
         struct fuse_conn *fc = get_fuse_conn(dir);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.mode = mode;
@@ -407,9 +405,9 @@ static int fuse_mkdir(struct inode *dir, struct dentry *entry, int mode)
 {
         struct fuse_mkdir_in inarg;
         struct fuse_conn *fc = get_fuse_conn(dir);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.mode = mode;
@@ -427,9 +425,9 @@ static int fuse_symlink(struct inode *dir, struct dentry *entry,
 {
         struct fuse_conn *fc = get_fuse_conn(dir);
         unsigned len = strlen(link) + 1;
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         req->in.h.opcode = FUSE_SYMLINK;
         req->in.numargs = 2;
@@ -444,9 +442,9 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
 {
         int err;
         struct fuse_conn *fc = get_fuse_conn(dir);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         req->in.h.opcode = FUSE_UNLINK;
         req->in.h.nodeid = get_node_id(dir);
@@ -476,9 +474,9 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
 {
         int err;
         struct fuse_conn *fc = get_fuse_conn(dir);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         req->in.h.opcode = FUSE_RMDIR;
         req->in.h.nodeid = get_node_id(dir);
@@ -504,9 +502,9 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent,
         int err;
         struct fuse_rename_in inarg;
         struct fuse_conn *fc = get_fuse_conn(olddir);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.newdir = get_node_id(newdir);
@@ -553,9 +551,9 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
         struct fuse_link_in inarg;
         struct inode *inode = entry->d_inode;
         struct fuse_conn *fc = get_fuse_conn(inode);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.oldnodeid = get_node_id(inode);
@@ -583,9 +581,9 @@ int fuse_do_getattr(struct inode *inode)
         int err;
         struct fuse_attr_out arg;
         struct fuse_conn *fc = get_fuse_conn(inode);
-        struct fuse_req *req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        struct fuse_req *req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         req->in.h.opcode = FUSE_GETATTR;
         req->in.h.nodeid = get_node_id(inode);
@@ -673,9 +671,9 @@ static int fuse_access(struct inode *inode, int mask)
         if (fc->no_access)
                 return 0;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.mask = mask;
@@ -780,9 +778,9 @@ static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
         if (is_bad_inode(inode))
                 return -EIO;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         page = alloc_page(GFP_KERNEL);
         if (!page) {
@@ -809,11 +807,11 @@ static char *read_link(struct dentry *dentry)
 {
         struct inode *inode = dentry->d_inode;
         struct fuse_conn *fc = get_fuse_conn(inode);
-        struct fuse_req *req = fuse_get_request(fc);
+        struct fuse_req *req = fuse_get_req(fc);
         char *link;
 
-        if (!req)
-                return ERR_PTR(-EINTR);
+        if (IS_ERR(req))
+                return ERR_PTR(PTR_ERR(req));
 
         link = (char *) __get_free_page(GFP_KERNEL);
         if (!link) {
@@ -933,9 +931,9 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
                 }
         }
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         iattr_to_fattr(attr, &inarg);
@@ -995,9 +993,9 @@ static int fuse_setxattr(struct dentry *entry, const char *name,
         if (fc->no_setxattr)
                 return -EOPNOTSUPP;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.size = size;
@@ -1035,9 +1033,9 @@ static ssize_t fuse_getxattr(struct dentry *entry, const char *name,
         if (fc->no_getxattr)
                 return -EOPNOTSUPP;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.size = size;
@@ -1085,9 +1083,9 @@ static ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
         if (fc->no_listxattr)
                 return -EOPNOTSUPP;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.size = size;
@@ -1131,9 +1129,9 @@ static int fuse_removexattr(struct dentry *entry, const char *name)
         if (fc->no_removexattr)
                 return -EOPNOTSUPP;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         req->in.h.opcode = FUSE_REMOVEXATTR;
         req->in.h.nodeid = get_node_id(inode);
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 3ac39c0288de..e4f041a11bb5 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -22,9 +22,9 @@ static int fuse_send_open(struct inode *inode, struct file *file, int isdir,
         struct fuse_req *req;
         int err;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.flags = file->f_flags & ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
@@ -184,9 +184,9 @@ static int fuse_flush(struct file *file)
         if (fc->no_flush)
                 return 0;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.fh = ff->fh;
@@ -223,9 +223,9 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
         if ((!isdir && fc->no_fsync) || (isdir && fc->no_fsyncdir))
                 return 0;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&inarg, 0, sizeof(inarg));
         inarg.fh = ff->fh;
@@ -297,9 +297,9 @@ static int fuse_readpage(struct file *file, struct page *page)
         if (is_bad_inode(inode))
                 goto out;
 
-        err = -EINTR;
-        req = fuse_get_request(fc);
-        if (!req)
+        req = fuse_get_req(fc);
+        err = PTR_ERR(req);
+        if (IS_ERR(req))
                 goto out;
 
         req->out.page_zeroing = 1;
@@ -368,10 +368,10 @@ static int fuse_readpages_fill(void *_data, struct page *page)
              (req->num_pages + 1) * PAGE_CACHE_SIZE > fc->max_read ||
              req->pages[req->num_pages - 1]->index + 1 != page->index)) {
                 fuse_send_readpages(req, data->file, inode);
-                data->req = req = fuse_get_request(fc);
-                if (!req) {
+                data->req = req = fuse_get_req(fc);
+                if (IS_ERR(req)) {
                         unlock_page(page);
-                        return -EINTR;
+                        return PTR_ERR(req);
                 }
         }
         req->pages[req->num_pages] = page;
@@ -392,9 +392,9 @@ static int fuse_readpages(struct file *file, struct address_space *mapping,
 
         data.file = file;
         data.inode = inode;
-        data.req = fuse_get_request(fc);
-        if (!data.req)
-                return -EINTR;
+        data.req = fuse_get_req(fc);
+        if (IS_ERR(data.req))
+                return PTR_ERR(data.req);
 
         err = read_cache_pages(mapping, pages, fuse_readpages_fill, &data);
         if (!err) {
@@ -455,9 +455,9 @@ static int fuse_commit_write(struct file *file, struct page *page,
         if (is_bad_inode(inode))
                 return -EIO;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         req->num_pages = 1;
         req->pages[0] = page;
@@ -532,9 +532,9 @@ static ssize_t fuse_direct_io(struct file *file, const char __user *buf,
         if (is_bad_inode(inode))
                 return -EIO;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         while (count) {
                 size_t nres;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 6ed812fd6200..242e69cb1251 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -18,9 +18,6 @@
 /** Max number of pages that can be used in a single read request */
 #define FUSE_MAX_PAGES_PER_REQ 32
 
-/** If more requests are outstanding, then the operation will block */
-#define FUSE_MAX_OUTSTANDING 10
-
 /** It could be as large as PATH_MAX, but would that have any uses? */
 #define FUSE_NAME_MAX 1024
 
@@ -131,8 +128,8 @@ struct fuse_conn;
  * A request to the client
  */
 struct fuse_req {
-        /** This can be on either unused_list, pending processing or
-            io lists in fuse_conn */
+        /** This can be on either pending processing or io lists in
+            fuse_conn */
         struct list_head list;
 
         /** Entry on the background list */
@@ -150,9 +147,6 @@ struct fuse_req {
         /** True if the request has reply */
         unsigned isreply:1;
 
-        /** The request is preallocated */
-        unsigned preallocated:1;
-
         /** The request was interrupted */
         unsigned interrupted:1;
 
@@ -247,19 +241,9 @@ struct fuse_conn {
             interrupted request) */
         struct list_head background;
 
-        /** Controls the maximum number of outstanding requests */
-        struct semaphore outstanding_sem;
-
-        /** This counts the number of outstanding requests if
-            outstanding_sem would go negative */
-        unsigned outstanding_debt;
-
         /** RW semaphore for exclusion with fuse_put_super() */
         struct rw_semaphore sbput_sem;
 
-        /** The list of unused requests */
-        struct list_head unused_list;
-
         /** The next unique request id */
         u64 reqctr;
 
@@ -452,11 +436,11 @@ void fuse_reset_request(struct fuse_req *req);
 /**
  * Reserve a preallocated request
  */
-struct fuse_req *fuse_get_request(struct fuse_conn *fc);
+struct fuse_req *fuse_get_req(struct fuse_conn *fc);
 
 /**
- * Decrement reference count of a request.  If count goes to zero put
- * on unused list (preallocated) or free request (not preallocated).
+ * Decrement reference count of a request.  If count goes to zero free
+ * the request.
  */
 void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req);
 
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index cc58debeabd4..824ebbc428ed 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -243,9 +243,9 @@ static int fuse_statfs(struct super_block *sb, struct kstatfs *buf)
         struct fuse_statfs_out outarg;
         int err;
 
-        req = fuse_get_request(fc);
-        if (!req)
-                return -EINTR;
+        req = fuse_get_req(fc);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
 
         memset(&outarg, 0, sizeof(outarg));
         req->in.numargs = 0;
@@ -370,15 +370,7 @@ static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
 
 static void fuse_conn_release(struct kobject *kobj)
 {
-        struct fuse_conn *fc = get_fuse_conn_kobj(kobj);
-
-        while (!list_empty(&fc->unused_list)) {
-                struct fuse_req *req;
-                req = list_entry(fc->unused_list.next, struct fuse_req, list);
-                list_del(&req->list);
-                fuse_request_free(req);
-        }
-        kfree(fc);
+        kfree(get_fuse_conn_kobj(kobj));
 }
 
 static struct fuse_conn *new_conn(void)
@@ -387,27 +379,16 @@ static struct fuse_conn *new_conn(void)
 
         fc = kzalloc(sizeof(*fc), GFP_KERNEL);
         if (fc) {
-                int i;
                 spin_lock_init(&fc->lock);
                 init_waitqueue_head(&fc->waitq);
                 INIT_LIST_HEAD(&fc->pending);
                 INIT_LIST_HEAD(&fc->processing);
                 INIT_LIST_HEAD(&fc->io);
-                INIT_LIST_HEAD(&fc->unused_list);
                 INIT_LIST_HEAD(&fc->background);
-                sema_init(&fc->outstanding_sem, 1); /* One for INIT */
                 init_rwsem(&fc->sbput_sem);
                 kobj_set_kset_s(fc, connections_subsys);
                 kobject_init(&fc->kobj);
                 atomic_set(&fc->num_waiting, 0);
-                for (i = 0; i < FUSE_MAX_OUTSTANDING; i++) {
-                        struct fuse_req *req = fuse_request_alloc();
-                        if (!req) {
-                                kobject_put(&fc->kobj);
-                                return NULL;
-                        }
-                        list_add(&req->list, &fc->unused_list);
-                }
                 fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
                 fc->bdi.unplug_io_fn = default_unplug_io_fn;
                 fc->reqctr = 0;
@@ -438,7 +419,6 @@ static struct super_operations fuse_super_operations = {
 
 static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
 {
-        int i;
         struct fuse_init_out *arg = &req->misc.init_out;
 
         if (req->out.h.error || arg->major != FUSE_KERNEL_VERSION)
@@ -457,22 +437,11 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
                 fc->minor = arg->minor;
                 fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
         }
-
-        /* After INIT reply is received other requests can go
-           out.  So do (FUSE_MAX_OUTSTANDING - 1) number of
-           up()s on outstanding_sem.  The last up() is done in
-           fuse_putback_request() */
-        for (i = 1; i < FUSE_MAX_OUTSTANDING; i++)
-                up(&fc->outstanding_sem);
-
         fuse_put_request(fc, req);
 }
 
-static void fuse_send_init(struct fuse_conn *fc)
+static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
 {
-        /* This is called from fuse_read_super() so there's guaranteed
-           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;
@@ -508,6 +477,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
         struct fuse_mount_data d;
         struct file *file;
         struct dentry *root_dentry;
+        struct fuse_req *init_req;
         int err;
 
         if (!parse_fuse_opt((char *) data, &d))
@@ -554,13 +524,17 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
                 goto err;
         }
 
+        init_req = fuse_request_alloc();
+        if (!init_req)
+                goto err_put_root;
+
         err = kobject_set_name(&fc->kobj, "%llu", conn_id());
         if (err)
-                goto err_put_root;
+                goto err_free_req;
 
         err = kobject_add(&fc->kobj);
         if (err)
-                goto err_put_root;
+                goto err_free_req;
 
         sb->s_root = root_dentry;
         fc->mounted = 1;
@@ -574,10 +548,12 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
          */
         fput(file);
 
-        fuse_send_init(fc);
+        fuse_send_init(fc, init_req);
 
         return 0;
 
+ err_free_req:
+        fuse_request_free(init_req);
  err_put_root:
         dput(root_dentry);
  err: