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Message-ID: <4B198B4C.3030201@gmail.com>
Date: Fri, 04 Dec 2009 23:21:00 +0100
From: Emese Revfy <re.emese@...il.com>
To: chris.mason@...cle.com, torvalds@...ux-foundation.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 09/31] Constify struct extent_io_ops for 2.6.32 v1
From: Emese Revfy <re.emese@...il.com>
Constify struct extent_io_ops.
Signed-off-by: Emese Revfy <re.emese@...il.com>
---
fs/btrfs/disk-io.c | 4 ++--
fs/btrfs/extent_io.h | 30 +++++++++++++++---------------
fs/btrfs/inode.c | 4 ++--
3 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 02b6afb..6c78215 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -39,7 +39,7 @@
#include "tree-log.h"
#include "free-space-cache.h"
-static struct extent_io_ops btree_extent_io_ops;
+static const struct extent_io_ops btree_extent_io_ops;
static void end_workqueue_fn(struct btrfs_work *work);
static void free_fs_root(struct btrfs_root *root);
@@ -2585,7 +2585,7 @@ out:
return 0;
}
-static struct extent_io_ops btree_extent_io_ops = {
+static const struct extent_io_ops btree_extent_io_ops = {
.write_cache_pages_lock_hook = btree_lock_page_hook,
.readpage_end_io_hook = btree_readpage_end_io_hook,
.submit_bio_hook = btree_submit_bio_hook,
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 36de250..7ec75c7 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -49,36 +49,36 @@ typedef int (extent_submit_bio_hook_t)(struct inode *inode, int rw,
struct bio *bio, int mirror_num,
unsigned long bio_flags);
struct extent_io_ops {
- int (*fill_delalloc)(struct inode *inode, struct page *locked_page,
+ int (* const fill_delalloc)(struct inode *inode, struct page *locked_page,
u64 start, u64 end, int *page_started,
unsigned long *nr_written);
- int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
- int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
+ int (* const writepage_start_hook)(struct page *page, u64 start, u64 end);
+ int (* const writepage_io_hook)(struct page *page, u64 start, u64 end);
extent_submit_bio_hook_t *submit_bio_hook;
- int (*merge_bio_hook)(struct page *page, unsigned long offset,
+ int (* const merge_bio_hook)(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
- int (*readpage_io_hook)(struct page *page, u64 start, u64 end);
- int (*readpage_io_failed_hook)(struct bio *bio, struct page *page,
+ int (* const readpage_io_hook)(struct page *page, u64 start, u64 end);
+ int (* const readpage_io_failed_hook)(struct bio *bio, struct page *page,
u64 start, u64 end,
struct extent_state *state);
- int (*writepage_io_failed_hook)(struct bio *bio, struct page *page,
+ int (* const writepage_io_failed_hook)(struct bio *bio, struct page *page,
u64 start, u64 end,
struct extent_state *state);
- int (*readpage_end_io_hook)(struct page *page, u64 start, u64 end,
+ int (* const readpage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state);
- int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
+ int (* const writepage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate);
- int (*set_bit_hook)(struct inode *inode, u64 start, u64 end,
+ int (* const set_bit_hook)(struct inode *inode, u64 start, u64 end,
unsigned long old, unsigned long bits);
- int (*clear_bit_hook)(struct inode *inode, struct extent_state *state,
+ int (* const clear_bit_hook)(struct inode *inode, struct extent_state *state,
unsigned long bits);
- int (*merge_extent_hook)(struct inode *inode,
+ int (* const merge_extent_hook)(struct inode *inode,
struct extent_state *new,
struct extent_state *other);
- int (*split_extent_hook)(struct inode *inode,
+ int (* const split_extent_hook)(struct inode *inode,
struct extent_state *orig, u64 split);
- int (*write_cache_pages_lock_hook)(struct page *page);
+ int (* const write_cache_pages_lock_hook)(struct page *page);
};
struct extent_io_tree {
@@ -88,7 +88,7 @@ struct extent_io_tree {
u64 dirty_bytes;
spinlock_t lock;
spinlock_t buffer_lock;
- struct extent_io_ops *ops;
+ const struct extent_io_ops *ops;
};
struct extent_state {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b3ad168..3453cba 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -63,7 +63,7 @@ static const struct inode_operations btrfs_file_inode_operations;
static const struct address_space_operations btrfs_aops;
static const struct address_space_operations btrfs_symlink_aops;
static const struct file_operations btrfs_dir_file_operations;
-static struct extent_io_ops btrfs_extent_io_ops;
+static const struct extent_io_ops btrfs_extent_io_ops;
static struct kmem_cache *btrfs_inode_cachep;
struct kmem_cache *btrfs_trans_handle_cachep;
@@ -5854,7 +5854,7 @@ static const struct file_operations btrfs_dir_file_operations = {
.fsync = btrfs_sync_file,
};
-static struct extent_io_ops btrfs_extent_io_ops = {
+static const struct extent_io_ops btrfs_extent_io_ops = {
.fill_delalloc = run_delalloc_range,
.submit_bio_hook = btrfs_submit_bio_hook,
.merge_bio_hook = btrfs_merge_bio_hook,
--
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