[PATCH] mark struct inode_operations const 1
Many struct inode_operations in the kernel can be "const". Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data. In addition it'll catch accidental writes at compile time to
these shared resources.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index f92cd30..7b48c03 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -75,8 +75,8 @@
extern const struct file_operations configfs_dir_operations;
extern const struct file_operations configfs_file_operations;
extern const struct file_operations bin_fops;
-extern struct inode_operations configfs_dir_inode_operations;
-extern struct inode_operations configfs_symlink_inode_operations;
+extern const struct inode_operations configfs_dir_inode_operations;
+extern const struct inode_operations configfs_symlink_inode_operations;
extern int configfs_symlink(struct inode *dir, struct dentry *dentry,
const char *symname);
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 9371ee2..34750d5 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -930,7 +930,7 @@
return 0;
}
-struct inode_operations configfs_dir_inode_operations = {
+const struct inode_operations configfs_dir_inode_operations = {
.mkdir = configfs_mkdir,
.rmdir = configfs_rmdir,
.symlink = configfs_symlink,
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index fb18917..2ec9bea 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -49,7 +49,7 @@
.capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
};
-static struct inode_operations configfs_inode_operations ={
+static const struct inode_operations configfs_inode_operations ={
.setattr = configfs_setattr,
};
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index fb65e08..22700d2 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -272,7 +272,7 @@
}
}
-struct inode_operations configfs_symlink_inode_operations = {
+const struct inode_operations configfs_symlink_inode_operations = {
.follow_link = configfs_follow_link,
.readlink = generic_readlink,
.put_link = configfs_put_link,