3 files changed, 19 insertions, 12 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 69ebf2ecb089..e0c7ada08a1f 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -87,8 +87,8 @@ static void __fuse_put_request(struct fuse_req *req)
 
 static void fuse_req_init_context(struct fuse_req *req)
 {
-        req->in.h.uid = current->fsuid;
-        req->in.h.gid = current->fsgid;
+        req->in.h.uid = current_fsuid();
+        req->in.h.gid = current_fsgid();
         req->in.h.pid = current->pid;
 }
 
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index f310768a02fe..fdff346e96fd 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -871,18 +871,25 @@ int fuse_update_attributes(struct inode *inode, struct kstat *stat,
  */
 int fuse_allow_task(struct fuse_conn *fc, struct task_struct *task)
 {
+        const struct cred *cred;
+        int ret;
+
         if (fc->flags & FUSE_ALLOW_OTHER)
                 return 1;
 
-        if (task->euid == fc->user_id &&
-            task->suid == fc->user_id &&
-            task->uid == fc->user_id &&
-            task->egid == fc->group_id &&
-            task->sgid == fc->group_id &&
-            task->gid == fc->group_id)
-                return 1;
+        rcu_read_lock();
+        ret = 0;
+        cred = __task_cred(task);
+        if (cred->euid == fc->user_id &&
+            cred->suid == fc->user_id &&
+            cred->uid  == fc->user_id &&
+            cred->egid == fc->group_id &&
+            cred->sgid == fc->group_id &&
+            cred->gid  == fc->group_id)
+                ret = 1;
+        rcu_read_unlock();
 
-        return 0;
+        return ret;
 }
 
 static int fuse_access(struct inode *inode, int mask)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 1a057f02e7da..e8162646a9b5 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -655,7 +655,7 @@ static int fuse_write_begin(struct file *file, struct address_space *mapping,
 {
         pgoff_t index = pos >> PAGE_CACHE_SHIFT;
 
-        *pagep = __grab_cache_page(mapping, index);
+        *pagep = grab_cache_page_write_begin(mapping, index, flags);
         if (!*pagep)
                 return -ENOMEM;
         return 0;
@@ -788,7 +788,7 @@ static ssize_t fuse_fill_write_pages(struct fuse_req *req,
                         break;
 
                 err = -ENOMEM;
-                page = __grab_cache_page(mapping, index);
+                page = grab_cache_page_write_begin(mapping, index, 0);
                 if (!page)
                         break;