ecryptfs: fasync BKL pushdown

Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 2258b8f654a62ff7f45e6df55cd3a501d1c5dc25..24749bf0668f0c8d82a887e2b857c347a86a40f5 100644 (file)
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -30,6 +30,7 @@
 #include <linux/security.h>
 #include <linux/compat.h>
 #include <linux/fs_stack.h>
+#include <linux/smp_lock.h>
 #include "ecryptfs_kernel.h"
 
 /**
@@ -277,9 +278,11 @@ static int ecryptfs_fasync(int fd, struct file *file, int flag)
        int rc = 0;
        struct file *lower_file = NULL;
 
+       lock_kernel();
        lower_file = ecryptfs_file_to_lower(file);
        if (lower_file->f_op && lower_file->f_op->fasync)
                rc = lower_file->f_op->fasync(fd, lower_file, flag);
+       unlock_kernel();
        return rc;
 }