[2.6 patch] fs/reiser4/: possible cleanups
From: Adrian Bunk
Date: Sun Dec 11 2005 - 20:34:43 EST
This patch contains the following possible cleanups:
- make needlessly global code static
- #if unused code away
Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
---
This patch was already sent on:
- 18 Nov 2005
fs/reiser4/estimate.c | 2 +-
fs/reiser4/flush_queue.c | 2 ++
fs/reiser4/fsdata.c | 9 ++++++---
fs/reiser4/fsdata.h | 3 ---
fs/reiser4/init_super.c | 4 +++-
fs/reiser4/inode.c | 8 ++------
fs/reiser4/jnode.c | 2 ++
fs/reiser4/key.c | 2 ++
fs/reiser4/key.h | 1 -
fs/reiser4/lock.c | 3 +++
fs/reiser4/oid.c | 2 ++
fs/reiser4/plugin/file/cryptcompress.c | 4 ++++
fs/reiser4/plugin/file/file.h | 3 ---
fs/reiser4/plugin/plugin.c | 12 ++++++------
fs/reiser4/plugin/plugin.h | 2 --
fs/reiser4/readahead.c | 3 +++
fs/reiser4/readahead.h | 1 -
fs/reiser4/super.c | 2 ++
fs/reiser4/super.h | 4 ----
fs/reiser4/tree.c | 2 +-
fs/reiser4/tree.h | 2 --
fs/reiser4/tree_walk.c | 4 ++++
fs/reiser4/tree_walk.h | 2 --
fs/reiser4/znode.h | 4 ----
24 files changed, 43 insertions(+), 40 deletions(-)
--- linux-2.6.14-rc5-mm1/fs/reiser4/flush_queue.c.old 2005-10-28 22:51:31.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/flush_queue.c 2005-10-28 22:57:29.000000000 +0200
@@ -644,6 +644,7 @@
INIT_LIST_HEAD(&atom->flush_queues);
}
+#ifdef REISER4_USE_EFLUSH
/* get a flush queue for an atom pointed by given jnode (spin-locked) ; returns
* both atom and jnode locked and found and took exclusive access for flush
* queue object. */
@@ -707,6 +708,7 @@
return 0;
}
+#endif /* REISER4_USE_EFLUSH */
#if REISER4_DEBUG
--- linux-2.6.14-rc5-mm1/fs/reiser4/fsdata.h.old 2005-10-28 22:52:19.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/fsdata.h 2005-10-28 22:54:19.000000000 +0200
@@ -135,8 +135,6 @@
extern void done_file_fsdata(void);
extern reiser4_file_fsdata *reiser4_get_file_fsdata(struct file *);
extern void reiser4_free_file_fsdata(struct file *);
-extern reiser4_file_fsdata *create_fsdata(struct file *);
-extern void free_fsdata(reiser4_file_fsdata *);
/*
@@ -182,7 +180,6 @@
extern int init_super_d_info(struct super_block *);
extern void done_super_d_info(struct super_block *);
-extern int file_is_stateless(struct file *);
extern loff_t get_dir_fpos(struct file *);
extern int try_to_attach_fsdata(struct file *, struct inode *);
extern void detach_fsdata(struct file *);
--- linux-2.6.14-rc5-mm1/fs/reiser4/fsdata.c.old 2005-10-28 22:52:34.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/fsdata.c 2005-10-28 22:54:41.000000000 +0200
@@ -18,6 +18,9 @@
/* spinlock protecting manipulations with dir_cursor's hash table and lists */
static spinlock_t d_lock = SPIN_LOCK_UNLOCKED;
+static reiser4_file_fsdata *create_fsdata(struct file *file);
+static int file_is_stateless(struct file *file);
+static void free_fsdata(reiser4_file_fsdata *fsdata);
static void kill_cursor(dir_cursor *);
/**
@@ -480,7 +483,7 @@
* one file system operation. This means that there may be "detached state"
* for underlying inode.
*/
-int file_is_stateless(struct file *file)
+static int file_is_stateless(struct file *file)
{
return reiser4_get_dentry_fsdata(file->f_dentry)->stateless;
}
@@ -686,7 +689,7 @@
*
* Allocates and initializes reiser4_file_fsdata structure.
*/
-reiser4_file_fsdata *create_fsdata(struct file *file)
+static reiser4_file_fsdata *create_fsdata(struct file *file)
{
reiser4_file_fsdata *fsdata;
@@ -706,7 +709,7 @@
*
* Dual to create_fsdata(). Free reiser4_file_fsdata.
*/
-void free_fsdata(reiser4_file_fsdata *fsdata)
+static void free_fsdata(reiser4_file_fsdata *fsdata)
{
BUG_ON(fsdata == NULL);
kmem_cache_free(file_fsdata_cache, fsdata);
--- linux-2.6.14-rc5-mm1/fs/reiser4/super.h.old 2005-10-28 22:54:56.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/super.h 2005-10-28 23:08:58.000000000 +0200
@@ -428,7 +428,6 @@
extern __u64 reiser4_free_blocks(const struct super_block *super);
extern void reiser4_set_free_blocks(const struct super_block *super, __u64 nr);
extern __u32 reiser4_mkfs_id(const struct super_block *super);
-extern void reiser4_set_mkfs_id(const struct super_block *super, __u32 id);
extern __u64 reiser4_free_committed_blocks(const struct super_block *super);
@@ -455,7 +454,6 @@
const reiser4_block_nr * blk);
extern int reiser4_fill_super(struct super_block *s, void *data, int silent);
extern int reiser4_done_super(struct super_block *s);
-extern reiser4_plugin * get_default_plugin(pset_member memb);
/* step of fill super */
extern int init_fs_info(struct super_block *);
@@ -463,7 +461,6 @@
extern int init_super_data(struct super_block *, char *opt_string);
extern int init_read_super(struct super_block *, int silent);
extern int init_root_inode(struct super_block *);
-extern void done_root_inode(struct super_block *);
/* Maximal possible object id. */
@@ -477,7 +474,6 @@
void oid_count_allocated(void);
void oid_count_released(void);
long oids_used(const struct super_block *);
-long oids_free(const struct super_block *);
#if REISER4_DEBUG
void print_fs_info(const char *prefix, const struct super_block *);
--- linux-2.6.14-rc5-mm1/fs/reiser4/init_super.c.old 2005-10-28 22:55:10.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/init_super.c 2005-10-28 22:55:48.000000000 +0200
@@ -665,7 +665,7 @@
};
/* access to default plugin table */
-reiser4_plugin *get_default_plugin(pset_member memb)
+static reiser4_plugin *get_default_plugin(pset_member memb)
{
return plugin_by_id(default_plugins[memb].type,
default_plugins[memb].id);
@@ -732,6 +732,7 @@
*
* Puts inode of root directory.
*/
+#if 0
void done_root_inode(struct super_block *super)
{
/* remove unused children of the parent dentry */
@@ -742,6 +743,7 @@
/* discard all inodes of filesystem */
invalidate_inodes(super);
}
+#endif /* 0 */
/*
* Local variables:
--- linux-2.6.14-rc5-mm1/fs/reiser4/jnode.c.old 2005-10-28 22:58:21.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/jnode.c 2005-10-28 22:58:38.000000000 +0200
@@ -1927,6 +1927,7 @@
#endif /* REISER4_DEBUG */
+#ifdef REISER4_COPY_ON_CAPTURE
/* this is only used to created jnode during capture copy */
jnode *jclone(jnode * node)
{
@@ -1942,6 +1943,7 @@
JF_SET(clone, JNODE_CC);
return clone;
}
+#endif /* REISER4_COPY_ON_CAPTURE */
/* Make Linus happy.
Local variables:
--- linux-2.6.14-rc5-mm1/fs/reiser4/key.h.old 2005-10-28 22:59:04.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/key.h 2005-10-28 22:59:13.000000000 +0200
@@ -364,7 +364,6 @@
/* size of a buffer suitable to hold human readable key representation */
#define KEY_BUF_LEN (80)
-extern int sprintf_key(char *buffer, const reiser4_key * key);
#if REISER4_DEBUG
extern void print_key(const char *prefix, const reiser4_key * key);
#else
--- linux-2.6.14-rc5-mm1/fs/reiser4/key.c.old 2005-10-28 22:59:20.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/key.c 2005-10-28 22:59:34.000000000 +0200
@@ -126,6 +126,7 @@
#endif
+#if 0
/* like print_key() but outputs key representation into @buffer. */
int sprintf_key(char *buffer /* buffer to print key into */ ,
const reiser4_key * key /* key to print */ )
@@ -146,6 +147,7 @@
(unsigned long long)get_key_objectid(key),
(unsigned long long)get_key_offset(key));
}
+#endif /* 0 */
/* Make Linus happy.
Local variables:
--- linux-2.6.14-rc5-mm1/fs/reiser4/znode.h.old 2005-10-28 22:59:56.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/znode.h 2005-10-28 23:13:08.000000000 +0200
@@ -238,12 +238,8 @@
#if REISER4_DEBUG
extern void print_znode(const char *prefix, const znode * node);
-extern void print_znodes(const char *prefix, reiser4_tree * tree);
-extern void print_lock_stack(const char *prefix, lock_stack * owner);
#else
#define print_znode( p, n ) noop
-#define print_znodes( p, t ) noop
-#define print_lock_stack( p, o ) noop
#endif
/* Make it look like various znode functions exist instead of treating znodes as
--- linux-2.6.14-rc5-mm1/fs/reiser4/lock.c.old 2005-10-28 23:00:10.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/lock.c 2005-10-28 23:00:26.000000000 +0200
@@ -1259,6 +1259,8 @@
}
#if REISER4_DEBUG
+
+#if 0
/* Debugging help */
void print_lock_stack(const char *prefix, lock_stack * owner)
{
@@ -1288,6 +1290,7 @@
spin_unlock_stack(owner);
}
+#endif /* 0 */
/*
* debugging functions
--- linux-2.6.14-rc5-mm1/fs/reiser4/oid.c.old 2005-10-28 23:01:19.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/oid.c 2005-10-28 23:01:36.000000000 +0200
@@ -100,6 +100,7 @@
return (long)-1;
}
+#if 0
/*
* return number of "free" oids. This is used by statfs(2) to report "free"
* inodes.
@@ -119,6 +120,7 @@
else
return (long)-1;
}
+#endif /* 0 */
/*
* Count oid as allocated in atom. This is done after call to oid_allocate()
--- linux-2.6.14-rc5-mm1/fs/reiser4/plugin/file/file.h.old 2005-10-28 23:01:52.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/plugin/file/file.h 2005-10-28 23:02:36.000000000 +0200
@@ -174,9 +174,6 @@
extern int readpage_cryptcompress(struct file *, struct page *);
extern int writepages_cryptcompress(struct address_space *,
struct writeback_control *);
-extern void readpages_cryptcompress(struct file *, struct address_space *,
- struct list_head *pages);
-extern sector_t bmap_cryptcompress(struct address_space *, sector_t lblock);
/* file plugin operations */
--- linux-2.6.14-rc5-mm1/fs/reiser4/plugin/file/cryptcompress.c.old 2005-10-28 23:02:05.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/plugin/file/cryptcompress.c 2005-10-28 23:02:51.000000000 +0200
@@ -1010,6 +1010,7 @@
return result;
}
+#if 0
/* plugin->readpages() */
void
readpages_cryptcompress(struct file *file, struct address_space *mapping,
@@ -1033,6 +1034,7 @@
return;
}
+#endif /* 0 */
/* how much pages will be captured */
static int cluster_nrpages_to_capture(reiser4_cluster_t * clust)
@@ -3357,6 +3359,7 @@
/* plugin->u.file.release */
/* plugin->u.file.get_block */
+#if 0
/* implentation of vfs' bmap method of struct address_space_operations for
cryptcompress plugin
*/
@@ -3418,6 +3421,7 @@
return result;
}
}
+#endif /* 0 */
/* this is implementation of delete method of file plugin for cryptcompress
*/
--- linux-2.6.14-rc5-mm1/fs/reiser4/plugin/plugin.h.old 2005-10-28 23:05:17.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/plugin/plugin.h 2005-10-28 23:05:23.000000000 +0200
@@ -677,8 +677,6 @@
/* stores plugin reference in reiser4-specific part of inode */
extern int set_object_plugin(struct inode *inode, reiser4_plugin_id id);
extern int setup_plugins(struct super_block *super, reiser4_plugin ** area);
-extern reiser4_plugin *lookup_plugin(const char *type_label,
- const char *plug_label);
extern int init_plugins(void);
/* builtin plugins */
--- linux-2.6.14-rc5-mm1/fs/reiser4/plugin/plugin.c.old 2005-10-28 23:05:32.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/plugin/plugin.c 2005-10-28 23:19:52.000000000 +0200
@@ -186,14 +186,8 @@
/* initialise plugin sub-system. Just call this once on reiser4 startup. */
int init_plugins(void);
int setup_plugins(struct super_block *super, reiser4_plugin ** area);
-reiser4_plugin *lookup_plugin(const char *type_label, const char *plug_label);
int locate_plugin(struct inode *inode, plugin_locator * loc);
-/* internal functions. */
-
-static reiser4_plugin_type find_type(const char *label);
-static reiser4_plugin *find_plugin(reiser4_plugin_type_data * ptype,
- const char *label);
/**
* init_plugins - initialize plugins
@@ -257,6 +251,7 @@
return id < plugins[type_id].builtin_num;
}
+#if 0
/* lookup plugin by scanning tables */
reiser4_plugin *lookup_plugin(const char *type_label /* plugin type label */ ,
const char *plug_label /* plugin label */ )
@@ -274,6 +269,7 @@
result = NULL;
return result;
}
+#endif /* 0 */
/* return plugin by its @type_id and @id.
@@ -329,6 +325,8 @@
return &plugins[type_id].plugins_list;
}
+#if 0
+
/* find plugin type by label */
static reiser4_plugin_type find_type(const char *label /* plugin type
* label */ )
@@ -370,6 +368,8 @@
return NULL;
}
+#endif /* 0 */
+
int grab_plugin(struct inode *self, struct inode *ancestor, pset_member memb)
{
reiser4_plugin *plug;
--- linux-2.6.14-rc5-mm1/fs/reiser4/readahead.h.old 2005-10-28 23:07:37.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/readahead.h 2005-10-28 23:07:45.000000000 +0200
@@ -32,7 +32,6 @@
loff_t slow_start; /* enlarging r/a size algorithm. */
};
-extern int reiser4_file_readahead(struct file *, loff_t, size_t);
extern void reiser4_readdir_readahead_init(struct inode *dir, tap_t * tap);
/* __READAHEAD_H__ */
--- linux-2.6.14-rc5-mm1/fs/reiser4/readahead.c.old 2005-10-28 23:07:53.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/readahead.c 2005-10-28 23:20:32.000000000 +0200
@@ -112,6 +112,8 @@
done_lh(&next_lh);
}
+#if 0
+
static inline loff_t get_max_readahead(struct reiser4_file_ra_state *ra)
{
/* NOTE: ra->max_window_size is initialized in
@@ -360,6 +362,7 @@
out:
return 0;
}
+#endif /* 0 */
void reiser4_readdir_readahead_init(struct inode *dir, tap_t * tap)
{
--- linux-2.6.14-rc5-mm1/fs/reiser4/super.c.old 2005-10-28 23:09:05.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/super.c 2005-10-28 23:09:20.000000000 +0200
@@ -120,6 +120,7 @@
return get_super_private(super)->mkfs_id;
}
+#if 0
/* set mkfs unique identifier */
void reiser4_set_mkfs_id(const struct super_block *super, __u32 id)
{
@@ -127,6 +128,7 @@
assert("vpf-224", is_reiser4_super(super));
get_super_private(super)->mkfs_id = id;
}
+#endif /* 0 */
/* amount of free blocks in file system */
__u64 reiser4_free_committed_blocks(const struct super_block *super)
--- linux-2.6.14-rc5-mm1/fs/reiser4/tree.h.old 2005-10-28 23:09:35.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/tree.h 2005-10-28 23:09:44.000000000 +0200
@@ -168,8 +168,6 @@
#define spin_ordering_pred_epoch(tree) (1)
SPIN_LOCK_FUNCTIONS(epoch, reiser4_tree, epoch_lock);
-extern void init_tree_0(reiser4_tree *);
-
extern int init_tree(reiser4_tree * tree,
const reiser4_block_nr * root_block, tree_level height,
node_plugin * default_plugin);
--- linux-2.6.14-rc5-mm1/fs/reiser4/tree.c.old 2005-10-28 23:09:52.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/tree.c 2005-10-28 23:10:01.000000000 +0200
@@ -1814,7 +1814,7 @@
}
/* first step of reiser4 tree initialization */
-void init_tree_0(reiser4_tree * tree)
+static void init_tree_0(reiser4_tree * tree)
{
assert("zam-683", tree != NULL);
rw_tree_init(tree);
--- linux-2.6.14-rc5-mm1/fs/reiser4/tree_walk.h.old 2005-10-28 23:11:08.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/tree_walk.h 2005-10-28 23:11:19.000000000 +0200
@@ -105,8 +105,6 @@
* node or extent processing functions. */
int (*before) (void *);
};
-extern int tree_walk(const reiser4_key *, int, struct tree_walk_actor *,
- void *);
#if REISER4_DEBUG
int check_sibling_list(znode * node);
--- linux-2.6.14-rc5-mm1/fs/reiser4/tree_walk.c.old 2005-10-28 23:11:38.000000000 +0200
+++ linux-2.6.14-rc5-mm1/fs/reiser4/tree_walk.c 2005-10-28 23:12:13.000000000 +0200
@@ -910,6 +910,8 @@
assert("nikita-3281", check_sibling_list(before));
}
+#if 0
+
struct tw_handle {
/* A key for tree walking (re)start, updated after each successful tree
* node processing */
@@ -1237,6 +1239,8 @@
return ret;
}
+#endif /* 0 */
+
/*
Local variables:
c-indentation-style: "K&R"
--- linux-2.6.15-rc1-mm1-full/fs/reiser4/estimate.c.old 2005-11-18 00:32:58.000000000 +0100
+++ linux-2.6.15-rc1-mm1-full/fs/reiser4/estimate.c 2005-11-18 00:33:17.000000000 +0100
@@ -70,7 +70,7 @@
}
/* returnes max number of nodes can be occupied by disk cluster */
-reiser4_block_nr estimate_cluster(struct inode * inode, int unprepped)
+static reiser4_block_nr estimate_cluster(struct inode * inode, int unprepped)
{
int per_cluster;
per_cluster = (unprepped ? 1 : cluster_nrpages(inode));
--- linux-2.6.15-rc1-mm1-full/fs/reiser4/inode.c.old 2005-11-18 00:21:42.000000000 +0100
+++ linux-2.6.15-rc1-mm1-full/fs/reiser4/inode.c 2005-11-18 00:34:36.000000000 +0100
@@ -109,17 +109,14 @@
return 255;
}
+#if REISER4_USE_COLLISION_LIMIT
/* Maximal number of hash collisions for this directory. */
int max_hash_collisions(const struct inode *dir /* inode queried */ )
{
assert("nikita-1711", dir != NULL);
-#if REISER4_USE_COLLISION_LIMIT
return reiser4_inode_data(dir)->plugin.max_collisions;
-#else
- (void)dir;
- return ~0;
-#endif
}
+#endif /* REISER4_USE_COLLISION_LIMIT */
/* Install file, inode, and address_space operation on @inode, depending on
its mode. */
-
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