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ext4: make some functions static in extents.c

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Make the following functions static since they're only used in
extents.c:

	__ext4_ext_dirty()
	ext4_can_extents_be_merged()
	ext4_collapse_range()
	ext4_insert_range()

Also remove the prototype for ext4_ext_writepage_trans_blocks(), as this
function is not defined anywhere.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20191231180444.46586-5-ebiggers@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Eric Biggers 2019-12-31 12:04:40 -06:00 committed by Theodore Ts'o
parent a1180994f5
commit 43f816772f
3 changed files with 15 additions and 18 deletions
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6
fs/ext4/ext4.h
View File

@ -3315,7 +3315,6 @@ struct ext4_extent;
#define EXT_MAX_BLOCKS 0xffffffff
extern int ext4_ext_tree_init(handle_t *handle, struct inode *);
extern int ext4_ext_writepage_trans_blocks(struct inode *, int);
extern int ext4_ext_index_trans_blocks(struct inode *inode, int extents);
extern int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
@ -3335,9 +3334,6 @@ extern int ext4_map_blocks(handle_t *handle, struct inode *inode,
extern int ext4_ext_calc_credits_for_single_extent(struct inode *inode,
int num,
struct ext4_ext_path *path);
extern int ext4_can_extents_be_merged(struct inode *inode,
struct ext4_extent *ex1,
struct ext4_extent *ex2);
extern int ext4_ext_insert_extent(handle_t *, struct inode *,
struct ext4_ext_path **,
struct ext4_extent *, int);
@ -3353,8 +3349,6 @@ extern int ext4_get_es_cache(struct inode *inode,
struct fiemap_extent_info *fieinfo,
__u64 start, __u64 len);
extern int ext4_ext_precache(struct inode *inode);
extern int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len);
extern int ext4_insert_range(struct inode *inode, loff_t offset, loff_t len);
extern int ext4_swap_extents(handle_t *handle, struct inode *inode1,
struct inode *inode2, ext4_lblk_t lblk1,
ext4_lblk_t lblk2, ext4_lblk_t count,

5
fs/ext4/ext4_extents.h
View File

@ -267,10 +267,5 @@ static inline void ext4_idx_store_pblock(struct ext4_extent_idx *ix,
0xffff);
}
#define ext4_ext_dirty(handle, inode, path) \
__ext4_ext_dirty(__func__, __LINE__, (handle), (inode), (path))
int __ext4_ext_dirty(const char *where, unsigned int line, handle_t *handle,
struct inode *inode, struct ext4_ext_path *path);
#endif /* _EXT4_EXTENTS */

22
fs/ext4/extents.c
View File

@ -161,8 +161,9 @@ static int ext4_ext_get_access(handle_t *handle, struct inode *inode,
* - ENOMEM
* - EIO
*/
int __ext4_ext_dirty(const char *where, unsigned int line, handle_t *handle,
struct inode *inode, struct ext4_ext_path *path)
static int __ext4_ext_dirty(const char *where, unsigned int line,
handle_t *handle, struct inode *inode,
struct ext4_ext_path *path)
{
int err;
@ -179,6 +180,9 @@ int __ext4_ext_dirty(const char *where, unsigned int line, handle_t *handle,
return err;
}
#define ext4_ext_dirty(handle, inode, path) \
__ext4_ext_dirty(__func__, __LINE__, (handle), (inode), (path))
static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
struct ext4_ext_path *path,
ext4_lblk_t block)
@ -1696,9 +1700,9 @@ static int ext4_ext_correct_indexes(handle_t *handle, struct inode *inode,
return err;
}
int
ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1,
struct ext4_extent *ex2)
static int ext4_can_extents_be_merged(struct inode *inode,
struct ext4_extent *ex1,
struct ext4_extent *ex2)
{
unsigned short ext1_ee_len, ext2_ee_len;
@ -4657,6 +4661,10 @@ retry:
return ret > 0 ? ret2 : ret;
}
static int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len);
static int ext4_insert_range(struct inode *inode, loff_t offset, loff_t len);
static long ext4_zero_range(struct file *file, loff_t offset,
loff_t len, int mode)
{
@ -5415,7 +5423,7 @@ out:
* This implements the fallocate's collapse range functionality for ext4
* Returns: 0 and non-zero on error.
*/
int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len)
static int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len)
{
struct super_block *sb = inode->i_sb;
ext4_lblk_t punch_start, punch_stop;
@ -5559,7 +5567,7 @@ out_mutex:
* by len bytes.
* Returns 0 on success, error otherwise.
*/
int ext4_insert_range(struct inode *inode, loff_t offset, loff_t len)
static int ext4_insert_range(struct inode *inode, loff_t offset, loff_t len)
{
struct super_block *sb = inode->i_sb;
handle_t *handle;