4 files changed, 16 insertions, 7 deletions

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 697f6b5f1313..e92f229e3c6e 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -828,15 +828,22 @@ static int load_flat_shared_library(int id, struct lib_info *libs)
         if (IS_ERR(bprm.file))
                 return res;
 
+        bprm.cred = prepare_exec_creds();
+        res = -ENOMEM;
+        if (!bprm.cred)
+                goto out;
+
         res = prepare_binprm(&bprm);
 
         if (res <= (unsigned long)-4096)
                 res = load_flat_file(&bprm, libs, id, NULL);
-        if (bprm.file) {
-                allow_write_access(bprm.file);
-                fput(bprm.file);
-                bprm.file = NULL;
-        }
+
+        abort_creds(bprm.cred);
+
+out:
+        allow_write_access(bprm.file);
+        fput(bprm.file);
+
         return(res);
 }
 
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index f28f070a60fc..f91fd51b32e3 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1905,6 +1905,7 @@ COMPATIBLE_IOCTL(FIONCLEX)
 COMPATIBLE_IOCTL(FIOASYNC)
 COMPATIBLE_IOCTL(FIONBIO)
 COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
+COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
 /* 0x00 */
 COMPATIBLE_IOCTL(FIBMAP)
 COMPATIBLE_IOCTL(FIGETBSZ)
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 5edc2bf20581..23c947539864 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -99,7 +99,7 @@ static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
         kunmap(pg);
 
         D2(printk(KERN_DEBUG "readpage finished\n"));
-        return 0;
+        return ret;
 }
 
 int jffs2_do_readpage_unlock(struct inode *inode, struct page *pg)
diff --git a/fs/namespace.c b/fs/namespace.c
index 277c28a63ead..7230787d18b0 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -316,7 +316,8 @@ EXPORT_SYMBOL_GPL(mnt_clone_write);
  */
 int mnt_want_write_file(struct file *file)
 {
-        if (!(file->f_mode & FMODE_WRITE))
+        struct inode *inode = file->f_dentry->d_inode;
+        if (!(file->f_mode & FMODE_WRITE) || special_file(inode->i_mode))
                 return mnt_want_write(file->f_path.mnt);
         else
                 return mnt_clone_write(file->f_path.mnt);