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Date: Mon, 18 Oct 2010 08:44:57 -0700
From: Stephen Hemminger <shemminger@...tta.com>
To: "Theodore Ts'o" <tytso@....edu>,
Andreas Dilger <adilger.kernel@...ger.ca>
Cc: linux-ext4@...r.kernel.org
Subject: [PATCH] ext4: make functions local
Make functions local to file if possible by making them static.
Remove dead code ext4_error_file which was defined
but never used anywhere.
Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
---
fs/ext4/balloc.c | 2 +-
fs/ext4/ext4.h | 17 -----------------
fs/ext4/ext4_extents.h | 10 ----------
fs/ext4/extents.c | 28 ++++++++++++++--------------
fs/ext4/ialloc.c | 11 ++++++-----
fs/ext4/inode.c | 2 +-
fs/ext4/mballoc.c | 11 ++++++++---
fs/ext4/super.c | 29 +----------------------------
8 files changed, 31 insertions(+), 79 deletions(-)
--- a/fs/ext4/balloc.c 2010-10-05 23:45:39.675118247 +0900
+++ b/fs/ext4/balloc.c 2010-10-05 23:46:29.579120467 +0900
@@ -489,7 +489,7 @@ error_return:
* Check if filesystem has nblocks free & available for allocation.
* On success return 1, return 0 on failure.
*/
-int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks)
+static int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks)
{
s64 free_blocks, dirty_blocks, root_blocks;
struct percpu_counter *fbc = &sbi->s_freeblocks_counter;
--- a/fs/ext4/ext4.h 2010-10-05 23:44:06.756117405 +0900
+++ b/fs/ext4/ext4.h 2010-10-05 23:55:47.547119736 +0900
@@ -62,9 +62,6 @@
#define EXT4_ERROR_INODE_BLOCK(inode, block, fmt, a...) \
ext4_error_inode((inode), __func__, __LINE__, (block), (fmt), ## a)
-#define EXT4_ERROR_FILE(file, fmt, a...) \
- ext4_error_file(__func__, __LINE__, (file), (fmt), ## a)
-
/* data type for block offset of block group */
typedef int ext4_grpblk_t;
@@ -1533,8 +1530,6 @@ ext4_group_first_block_no(struct super_b
void ext4_get_group_no_and_offset(struct super_block *sb, ext4_fsblk_t blocknr,
ext4_group_t *blockgrpp, ext4_grpblk_t *offsetp);
-extern struct proc_dir_entry *ext4_proc_root;
-
/*
* Function prototypes
*/
@@ -1561,7 +1556,6 @@ extern unsigned long ext4_bg_num_gdb(str
extern ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
ext4_fsblk_t goal, unsigned long *count, int *errp);
extern int ext4_claim_free_blocks(struct ext4_sb_info *sbi, s64 nblocks);
-extern int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks);
extern void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
ext4_fsblk_t block, unsigned long count);
extern ext4_fsblk_t ext4_count_free_blocks(struct super_block *);
@@ -1605,10 +1599,6 @@ extern struct inode * ext4_orphan_get(st
extern unsigned long ext4_count_free_inodes(struct super_block *);
extern unsigned long ext4_count_dirs(struct super_block *);
extern void ext4_check_inodes_bitmap(struct super_block *);
-extern unsigned ext4_init_inode_bitmap(struct super_block *sb,
- struct buffer_head *bh,
- ext4_group_t group,
- struct ext4_group_desc *desc);
extern void mark_bitmap_end(int start_bit, int end_bit, char *bitmap);
/* mballoc.c */
@@ -1627,9 +1617,6 @@ extern void ext4_free_blocks(handle_t *h
unsigned long count, int flags);
extern int ext4_mb_add_groupinfo(struct super_block *sb,
ext4_group_t i, struct ext4_group_desc *desc);
-extern int ext4_mb_get_buddy_cache_lock(struct super_block *, ext4_group_t);
-extern void ext4_mb_put_buddy_cache_lock(struct super_block *,
- ext4_group_t, int);
/* inode.c */
struct buffer_head *ext4_getblk(handle_t *, struct inode *,
ext4_lblk_t, int, int *);
@@ -1657,7 +1644,6 @@ extern void ext4_get_inode_flags(struct
extern int ext4_alloc_da_blocks(struct inode *inode);
extern void ext4_set_aops(struct inode *inode);
extern int ext4_writepage_trans_blocks(struct inode *);
-extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks);
extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
extern int ext4_block_truncate_page(handle_t *handle,
struct address_space *mapping, loff_t from);
@@ -1695,9 +1681,6 @@ extern void __ext4_error(struct super_bl
extern void ext4_error_inode(struct inode *, const char *, unsigned int,
ext4_fsblk_t, const char *, ...)
__attribute__ ((format (printf, 5, 6)));
-extern void ext4_error_file(struct file *, const char *, unsigned int,
- const char *, ...)
- __attribute__ ((format (printf, 4, 5)));
extern void __ext4_std_error(struct super_block *, const char *,
unsigned int, int);
extern void __ext4_abort(struct super_block *, const char *, unsigned int,
--- a/fs/ext4/ext4_extents.h 2010-10-05 23:40:32.468117473 +0900
+++ b/fs/ext4/ext4_extents.h 2010-10-05 23:56:06.891118028 +0900
@@ -237,19 +237,9 @@ extern int ext4_ext_calc_credits_for_sin
extern int ext4_can_extents_be_merged(struct inode *inode,
struct ext4_extent *ex1,
struct ext4_extent *ex2);
-extern int ext4_ext_try_to_merge(struct inode *inode,
- struct ext4_ext_path *path,
- struct ext4_extent *);
-extern unsigned int ext4_ext_check_overlap(struct inode *, struct ext4_extent *, struct ext4_ext_path *);
extern int ext4_ext_insert_extent(handle_t *, struct inode *, struct ext4_ext_path *, struct ext4_extent *, int);
-extern int ext4_ext_walk_space(struct inode *, ext4_lblk_t, ext4_lblk_t,
- ext_prepare_callback, void *);
extern struct ext4_ext_path *ext4_ext_find_extent(struct inode *, ext4_lblk_t,
struct ext4_ext_path *);
-extern int ext4_ext_search_left(struct inode *, struct ext4_ext_path *,
- ext4_lblk_t *, ext4_fsblk_t *);
-extern int ext4_ext_search_right(struct inode *, struct ext4_ext_path *,
- ext4_lblk_t *, ext4_fsblk_t *);
extern void ext4_ext_drop_refs(struct ext4_ext_path *);
extern int ext4_ext_check_inode(struct inode *inode);
#endif /* _EXT4_EXTENTS */
--- a/fs/ext4/extents.c 2010-10-05 23:40:32.536118292 +0900
+++ b/fs/ext4/extents.c 2010-10-05 23:43:25.592117861 +0900
@@ -739,9 +739,9 @@ err:
* insert new index [@logical;@ptr] into the block at @curp;
* check where to insert: before @curp or after @curp
*/
-int ext4_ext_insert_index(handle_t *handle, struct inode *inode,
- struct ext4_ext_path *curp,
- int logical, ext4_fsblk_t ptr)
+static int ext4_ext_insert_index(handle_t *handle, struct inode *inode,
+ struct ext4_ext_path *curp,
+ int logical, ext4_fsblk_t ptr)
{
struct ext4_extent_idx *ix;
int len, err;
@@ -1232,7 +1232,7 @@ out:
* returns 0 at @phys
* return value contains 0 (success) or error code
*/
-int
+static int
ext4_ext_search_left(struct inode *inode, struct ext4_ext_path *path,
ext4_lblk_t *logical, ext4_fsblk_t *phys)
{
@@ -1297,7 +1297,7 @@ ext4_ext_search_left(struct inode *inode
* returns 0 at @phys
* return value contains 0 (success) or error code
*/
-int
+static int
ext4_ext_search_right(struct inode *inode, struct ext4_ext_path *path,
ext4_lblk_t *logical, ext4_fsblk_t *phys)
{
@@ -1585,9 +1585,9 @@ ext4_can_extents_be_merged(struct inode
* Returns 0 if the extents (ex and ex+1) were _not_ merged and returns
* 1 if they got merged.
*/
-int ext4_ext_try_to_merge(struct inode *inode,
- struct ext4_ext_path *path,
- struct ext4_extent *ex)
+static int ext4_ext_try_to_merge(struct inode *inode,
+ struct ext4_ext_path *path,
+ struct ext4_extent *ex)
{
struct ext4_extent_header *eh;
unsigned int depth, len;
@@ -1632,9 +1632,9 @@ int ext4_ext_try_to_merge(struct inode *
* such that there will be no overlap, and then returns 1.
* If there is no overlap found, it returns 0.
*/
-unsigned int ext4_ext_check_overlap(struct inode *inode,
- struct ext4_extent *newext,
- struct ext4_ext_path *path)
+static unsigned int ext4_ext_check_overlap(struct inode *inode,
+ struct ext4_extent *newext,
+ struct ext4_ext_path *path)
{
ext4_lblk_t b1, b2;
unsigned int depth, len1;
@@ -1845,9 +1845,9 @@ cleanup:
return err;
}
-int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
- ext4_lblk_t num, ext_prepare_callback func,
- void *cbdata)
+static int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
+ ext4_lblk_t num, ext_prepare_callback func,
+ void *cbdata)
{
struct ext4_ext_path *path = NULL;
struct ext4_ext_cache cbex;
--- a/fs/ext4/ialloc.c 2010-10-05 23:44:06.864117937 +0900
+++ b/fs/ext4/ialloc.c 2010-10-05 23:45:25.471119195 +0900
@@ -65,9 +65,10 @@ void mark_bitmap_end(int start_bit, int
}
/* Initializes an uninitialized inode bitmap */
-unsigned ext4_init_inode_bitmap(struct super_block *sb, struct buffer_head *bh,
- ext4_group_t block_group,
- struct ext4_group_desc *gdp)
+static unsigned ext4_init_inode_bitmap(struct super_block *sb,
+ struct buffer_head *bh,
+ ext4_group_t block_group,
+ struct ext4_group_desc *gdp)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -411,8 +412,8 @@ struct orlov_stats {
* for a particular block group or flex_bg. If flex_size is 1, then g
* is a block group number; otherwise it is flex_bg number.
*/
-void get_orlov_stats(struct super_block *sb, ext4_group_t g,
- int flex_size, struct orlov_stats *stats)
+static void get_orlov_stats(struct super_block *sb, ext4_group_t g,
+ int flex_size, struct orlov_stats *stats)
{
struct ext4_group_desc *desc;
struct flex_groups *flex_group = EXT4_SB(sb)->s_flex_groups;
--- a/fs/ext4/inode.c 2010-10-05 23:46:45.567117620 +0900
+++ b/fs/ext4/inode.c 2010-10-05 23:46:54.155118182 +0900
@@ -5643,7 +5643,7 @@ static int ext4_index_trans_blocks(struc
*
* Also account for superblock, inode, quota and xattr blocks
*/
-int ext4_meta_trans_blocks(struct inode *inode, int nrblocks, int chunk)
+static int ext4_meta_trans_blocks(struct inode *inode, int nrblocks, int chunk)
{
ext4_group_t groups, ngroups = ext4_get_groups_count(inode->i_sb);
int gdpblocks;
--- a/fs/ext4/mballoc.c 2010-10-05 23:47:03.288118121 +0900
+++ b/fs/ext4/mballoc.c 2010-10-05 23:48:14.703119117 +0900
@@ -344,6 +344,10 @@ static void ext4_mb_generate_from_freeli
ext4_group_t group);
static void release_blocks_on_commit(journal_t *journal, transaction_t *txn);
+static int ext4_mb_get_buddy_cache_lock(struct super_block *, ext4_group_t);
+static void ext4_mb_put_buddy_cache_lock(struct super_block *,
+ ext4_group_t, int);
+
static inline void *mb_correct_addr_and_bit(int *bit, void *addr)
{
#if BITS_PER_LONG == 64
@@ -1922,7 +1926,8 @@ static int ext4_mb_good_group(struct ext
* cache doesn't happen whild holding the buddy cache
* lock
*/
-int ext4_mb_get_buddy_cache_lock(struct super_block *sb, ext4_group_t group)
+static int ext4_mb_get_buddy_cache_lock(struct super_block *sb,
+ ext4_group_t group)
{
int i;
int block, pnum;
@@ -1961,8 +1966,8 @@ int ext4_mb_get_buddy_cache_lock(struct
return i;
}
-void ext4_mb_put_buddy_cache_lock(struct super_block *sb,
- ext4_group_t group, int locked_group)
+static void ext4_mb_put_buddy_cache_lock(struct super_block *sb,
+ ext4_group_t group, int locked_group)
{
int i;
int block, pnum;
--- a/fs/ext4/super.c 2010-10-05 23:49:08.392117518 +0900
+++ b/fs/ext4/super.c 2010-10-05 23:55:20.356315778 +0900
@@ -50,7 +50,7 @@
#define CREATE_TRACE_POINTS
#include <trace/events/ext4.h>
-struct proc_dir_entry *ext4_proc_root;
+static struct proc_dir_entry *ext4_proc_root;
static struct kset *ext4_kset;
static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
@@ -416,33 +416,6 @@ void ext4_error_inode(struct inode *inod
ext4_handle_error(inode->i_sb);
}
-void ext4_error_file(struct file *file, const char *function,
- unsigned int line, const char *fmt, ...)
-{
- va_list args;
- struct ext4_super_block *es;
- struct inode *inode = file->f_dentry->d_inode;
- char pathname[80], *path;
-
- es = EXT4_SB(inode->i_sb)->s_es;
- es->s_last_error_ino = cpu_to_le32(inode->i_ino);
- save_error_info(inode->i_sb, function, line);
- va_start(args, fmt);
- path = d_path(&(file->f_path), pathname, sizeof(pathname));
- if (!path)
- path = "(unknown)";
- printk(KERN_CRIT
- "EXT4-fs error (device %s): %s:%d: inode #%lu "
- "(comm %s path %s): ",
- inode->i_sb->s_id, function, line, inode->i_ino,
- current->comm, path);
- vprintk(fmt, args);
- printk("\n");
- va_end(args);
-
- ext4_handle_error(inode->i_sb);
-}
-
static const char *ext4_decode_error(struct super_block *sb, int errno,
char nbuf[16])
{
--
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