logfs: constify logfs_block_ops structures

The logfs_block_ops structures are never modified, so declare them as
const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 5 insertions, 5 deletions

diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index 5f0937609465..5731361eba46 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -302,7 +302,7 @@ struct logfs_block {
         struct inode *inode;
         struct logfs_transaction *ta;
         unsigned long alias_map[LOGFS_BLOCK_FACTOR / BITS_PER_LONG];
-        struct logfs_block_ops *ops;
+        const struct logfs_block_ops *ops;
         int full;
         int partial;
         int reserved_bytes;
@@ -579,7 +579,7 @@ int logfs_exist_block(struct inode *inode, u64 bix);
 int get_page_reserve(struct inode *inode, struct page *page);
 void logfs_get_wblocks(struct super_block *sb, struct page *page, int lock);
 void logfs_put_wblocks(struct super_block *sb, struct page *page, int lock);
-extern struct logfs_block_ops indirect_block_ops;
+extern const struct logfs_block_ops indirect_block_ops;
 
 /* segment.c */
 int logfs_erase_segment(struct super_block *sb, u32 ofs, int ensure_erase);
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 380d86e1ab45..20973c9e52f8 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -569,13 +569,13 @@ static void indirect_free_block(struct super_block *sb,
 }
 
 
-static struct logfs_block_ops inode_block_ops = {
+static const struct logfs_block_ops inode_block_ops = {
         .write_block = inode_write_block,
         .free_block = inode_free_block,
         .write_alias = inode_write_alias,
 };
 
-struct logfs_block_ops indirect_block_ops = {
+const struct logfs_block_ops indirect_block_ops = {
         .write_block = indirect_write_block,
         .free_block = indirect_free_block,
         .write_alias = indirect_write_alias,
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 6de0fbfc6c00..d270e4b2ab6b 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -197,7 +197,7 @@ static int btree_write_alias(struct super_block *sb, struct logfs_block *block,
         return 0;
 }
 
-static struct logfs_block_ops btree_block_ops = {
+static const struct logfs_block_ops btree_block_ops = {
         .write_block    = btree_write_block,
         .free_block     = __free_block,
         .write_alias    = btree_write_alias,