ext4: make local functions static

I have been running make namespacecheck to look for unneeded globals, and
found these in ext4.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

9 files changed, 26 insertions, 54 deletions

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 59c3ba8bb8ea..0762d143e252 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -83,9 +83,9 @@ static inline int ext4_block_in_group(struct super_block *sb,
 /* Return the number of clusters used for file system metadata; this
  * represents the overhead needed by the file system.
  */
-unsigned ext4_num_overhead_clusters(struct super_block *sb,
-                                    ext4_group_t block_group,
-                                    struct ext4_group_desc *gdp)
+static unsigned ext4_num_overhead_clusters(struct super_block *sb,
+                                           ext4_group_t block_group,
+                                           struct ext4_group_desc *gdp)
 {
         unsigned num_clusters;
         int block_cluster = -1, inode_cluster = -1, itbl_cluster = -1, i, c;
@@ -176,9 +176,10 @@ static unsigned int num_clusters_in_group(struct super_block *sb,
 }
 
 /* Initializes an uninitialized block bitmap */
-void ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
-                            ext4_group_t block_group,
-                            struct ext4_group_desc *gdp)
+static void ext4_init_block_bitmap(struct super_block *sb,
+                                   struct buffer_head *bh,
+                                   ext4_group_t block_group,
+                                   struct ext4_group_desc *gdp)
 {
         unsigned int bit, bit_max;
         struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -351,10 +352,10 @@ static ext4_fsblk_t ext4_valid_block_bitmap(struct super_block *sb,
         return 0;
 }
 
-void ext4_validate_block_bitmap(struct super_block *sb,
-                               struct ext4_group_desc *desc,
-                               ext4_group_t block_group,
-                               struct buffer_head *bh)
+static void ext4_validate_block_bitmap(struct super_block *sb,
+                                       struct ext4_group_desc *desc,
+                                       ext4_group_t block_group,
+                                       struct buffer_head *bh)
 {
         ext4_fsblk_t    blk;
         struct ext4_group_info *grp = ext4_get_group_info(sb, block_group);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 4feb2d5819ae..1479e2ae00d2 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1956,10 +1956,6 @@ extern void ext4_get_group_no_and_offset(struct super_block *sb,
 extern ext4_group_t ext4_get_group_number(struct super_block *sb,
                                           ext4_fsblk_t block);
 
-extern void ext4_validate_block_bitmap(struct super_block *sb,
-                                       struct ext4_group_desc *desc,
-                                       ext4_group_t block_group,
-                                       struct buffer_head *bh);
 extern unsigned int ext4_block_group(struct super_block *sb,
                         ext4_fsblk_t blocknr);
 extern ext4_grpblk_t ext4_block_group_offset(struct super_block *sb,
@@ -1988,16 +1984,9 @@ extern int ext4_wait_block_bitmap(struct super_block *sb,
                                   struct buffer_head *bh);
 extern struct buffer_head *ext4_read_block_bitmap(struct super_block *sb,
                                                   ext4_group_t block_group);
-extern void ext4_init_block_bitmap(struct super_block *sb,
-                                   struct buffer_head *bh,
-                                   ext4_group_t group,
-                                   struct ext4_group_desc *desc);
 extern unsigned ext4_free_clusters_after_init(struct super_block *sb,
                                               ext4_group_t block_group,
                                               struct ext4_group_desc *gdp);
-extern unsigned ext4_num_overhead_clusters(struct super_block *sb,
-                                           ext4_group_t block_group,
-                                           struct ext4_group_desc *gdp);
 ext4_fsblk_t ext4_inode_to_goal_block(struct inode *);
 
 /* dir.c */
@@ -2140,8 +2129,6 @@ 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_chunk_trans_blocks(struct inode *, int nrblocks);
-extern int ext4_block_truncate_page(handle_t *handle,
-                struct address_space *mapping, loff_t from);
 extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
                              loff_t lstart, loff_t lend);
 extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
@@ -2201,8 +2188,6 @@ extern int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count);
 
 /* super.c */
 extern int ext4_calculate_overhead(struct super_block *sb);
-extern int ext4_superblock_csum_verify(struct super_block *sb,
-                                       struct ext4_super_block *es);
 extern void ext4_superblock_csum_set(struct super_block *sb);
 extern void *ext4_kvmalloc(size_t size, gfp_t flags);
 extern void *ext4_kvzalloc(size_t size, gfp_t flags);
@@ -2574,19 +2559,11 @@ extern const struct file_operations ext4_dir_operations;
 extern const struct inode_operations ext4_file_inode_operations;
 extern const struct file_operations ext4_file_operations;
 extern loff_t ext4_llseek(struct file *file, loff_t offset, int origin);
-extern void ext4_unwritten_wait(struct inode *inode);
 
 /* inline.c */
 extern int ext4_has_inline_data(struct inode *inode);
-extern int ext4_get_inline_size(struct inode *inode);
 extern int ext4_get_max_inline_size(struct inode *inode);
 extern int ext4_find_inline_data_nolock(struct inode *inode);
-extern void ext4_write_inline_data(struct inode *inode,
-                                   struct ext4_iloc *iloc,
-                                   void *buffer, loff_t pos,
-                                   unsigned int len);
-extern int ext4_prepare_inline_data(handle_t *handle, struct inode *inode,
-                                    unsigned int len);
 extern int ext4_init_inline_data(handle_t *handle, struct inode *inode,
                                  unsigned int len);
 extern int ext4_destroy_inline_data(handle_t *handle, struct inode *inode);
@@ -2779,9 +2756,6 @@ extern int ext4_bio_write_page(struct ext4_io_submit *io,
 
 /* mmp.c */
 extern int ext4_multi_mount_protect(struct super_block *, ext4_fsblk_t);
-extern void ext4_mmp_csum_set(struct super_block *sb, struct mmp_struct *mmp);
-extern int ext4_mmp_csum_verify(struct super_block *sb,
-                                struct mmp_struct *mmp);
 
 /*
  * Note that these flags will never ever appear in a buffer_head's state flag.
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index c3fb607413ed..0074e0d23d6e 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -122,9 +122,10 @@ handle_t *__ext4_journal_start_reserved(handle_t *handle, unsigned int line,
         return handle;
 }
 
-void ext4_journal_abort_handle(const char *caller, unsigned int line,
-                               const char *err_fn, struct buffer_head *bh,
-                               handle_t *handle, int err)
+static void ext4_journal_abort_handle(const char *caller, unsigned int line,
+                                      const char *err_fn,
+                                      struct buffer_head *bh,
+                                      handle_t *handle, int err)
 {
         char nbuf[16];
         const char *errstr = ext4_decode_error(NULL, err, nbuf);
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 81cfefa9dc0c..17c00ff202f2 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -231,10 +231,6 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
 /*
  * Wrapper functions with which ext4 calls into JBD.
  */
-void ext4_journal_abort_handle(const char *caller, unsigned int line,
-                               const char *err_fn,
-                struct buffer_head *bh, handle_t *handle, int err);
-
 int __ext4_journal_get_write_access(const char *where, unsigned int line,
                                     handle_t *handle, struct buffer_head *bh);
 
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 7d55a591deba..2389c4e71bf8 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -57,7 +57,7 @@ static int ext4_release_file(struct inode *inode, struct file *filp)
         return 0;
 }
 
-void ext4_unwritten_wait(struct inode *inode)
+static void ext4_unwritten_wait(struct inode *inode)
 {
         wait_queue_head_t *wq = ext4_ioend_wq(inode);
 
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 82edf5b93352..33dd704d16bd 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -22,7 +22,7 @@
 #define EXT4_INLINE_DOTDOT_OFFSET       2
 #define EXT4_INLINE_DOTDOT_SIZE         4
 
-int ext4_get_inline_size(struct inode *inode)
+static int ext4_get_inline_size(struct inode *inode)
 {
         if (EXT4_I(inode)->i_inline_off)
                 return EXT4_I(inode)->i_inline_size;
@@ -211,8 +211,8 @@ out:
  * value since it is already handled by ext4_xattr_ibody_inline_set.
  * That saves us one memcpy.
  */
-void ext4_write_inline_data(struct inode *inode, struct ext4_iloc *iloc,
-                            void *buffer, loff_t pos, unsigned int len)
+static void ext4_write_inline_data(struct inode *inode, struct ext4_iloc *iloc,
+                                   void *buffer, loff_t pos, unsigned int len)
 {
         struct ext4_xattr_entry *entry;
         struct ext4_xattr_ibody_header *header;
@@ -373,8 +373,8 @@ out:
         return error;
 }
 
-int ext4_prepare_inline_data(handle_t *handle, struct inode *inode,
-                             unsigned int len)
+static int ext4_prepare_inline_data(handle_t *handle, struct inode *inode,
+                                    unsigned int len)
 {
         int ret, size;
         struct ext4_inode_info *ei = EXT4_I(inode);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 04dd2de10796..574c6dda95d8 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3443,7 +3443,7 @@ unlock:
  * This required during truncate. We need to physically zero the tail end
  * of that block so it doesn't yield old data if the file is later grown.
  */
-int ext4_block_truncate_page(handle_t *handle,
+static int ext4_block_truncate_page(handle_t *handle,
                 struct address_space *mapping, loff_t from)
 {
         unsigned offset = from & (PAGE_CACHE_SIZE-1);
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 04434ad3e8e0..32bce844c2e1 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -18,7 +18,7 @@ static __le32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)
         return cpu_to_le32(csum);
 }
 
-int ext4_mmp_csum_verify(struct super_block *sb, struct mmp_struct *mmp)
+static int ext4_mmp_csum_verify(struct super_block *sb, struct mmp_struct *mmp)
 {
         if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
                                        EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
@@ -27,7 +27,7 @@ int ext4_mmp_csum_verify(struct super_block *sb, struct mmp_struct *mmp)
         return mmp->mmp_checksum == ext4_mmp_csum(sb, mmp);
 }
 
-void ext4_mmp_csum_set(struct super_block *sb, struct mmp_struct *mmp)
+static void ext4_mmp_csum_set(struct super_block *sb, struct mmp_struct *mmp)
 {
         if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
                                        EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e38dd7d37a69..b26a3959c8dd 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -138,8 +138,8 @@ static __le32 ext4_superblock_csum(struct super_block *sb,
         return cpu_to_le32(csum);
 }
 
-int ext4_superblock_csum_verify(struct super_block *sb,
-                                struct ext4_super_block *es)
+static int ext4_superblock_csum_verify(struct super_block *sb,
+                                       struct ext4_super_block *es)
 {
         if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
                                        EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))