[PATCH] Make most file operations structs in fs/ const

[deliverable/linux.git] / fs / pipe.c

diff --git a/fs/pipe.c b/fs/pipe.c
index d976866a115b8e0b975e3cea3c7ccdecb74a6d12..e2f4f1d9ffc2578ff4d2da0404c459b819a260a0 100644 (file)
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -568,7 +568,7 @@ pipe_rdwr_open(struct inode *inode, struct file *filp)
  * The file_operations structs are not static because they
  * are also used in linux/fs/fifo.c to do operations on FIFOs.
  */
-struct file_operations read_fifo_fops = {
+const struct file_operations read_fifo_fops = {
        .llseek         = no_llseek,
        .read           = pipe_read,
        .readv          = pipe_readv,
@@ -580,7 +580,7 @@ struct file_operations read_fifo_fops = {
        .fasync         = pipe_read_fasync,
 };
 
-struct file_operations write_fifo_fops = {
+const struct file_operations write_fifo_fops = {
        .llseek         = no_llseek,
        .read           = bad_pipe_r,
        .write          = pipe_write,
@@ -592,7 +592,7 @@ struct file_operations write_fifo_fops = {
        .fasync         = pipe_write_fasync,
 };
 
-struct file_operations rdwr_fifo_fops = {
+const struct file_operations rdwr_fifo_fops = {
        .llseek         = no_llseek,
        .read           = pipe_read,
        .readv          = pipe_readv,
@@ -675,7 +675,7 @@ fail_page:
        return NULL;
 }
 
-static struct vfsmount *pipe_mnt;
+static struct vfsmount *pipe_mnt __read_mostly;
 static int pipefs_delete_dentry(struct dentry *dentry)
 {
        return 1;