ext4: reduce object size when !CONFIG_PRINTK
Reduce the object size ~10% could be useful for embedded systems.
Add #ifdef CONFIG_PRINTK #else #endif blocks to hold formats and
arguments, passing " " to functions when !CONFIG_PRINTK and still
verifying format and arguments with no_printk.
$ size fs/ext4/built-in.o*
text data bss dec hex filename
239375 610 888 240873 3ace9 fs/ext4/built-in.o.new
264167 738 888 265793 40e41 fs/ext4/built-in.o.old
$ grep -E "CONFIG_EXT4|CONFIG_PRINTK" .config
# CONFIG_PRINTK is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_EXT4_FS_POSIX_ACL=y
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index cc82011..85b3dd6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -428,9 +428,9 @@
ext4_handle_error(sb);
}
-void ext4_error_inode(struct inode *inode, const char *function,
- unsigned int line, ext4_fsblk_t block,
- const char *fmt, ...)
+void __ext4_error_inode(struct inode *inode, const char *function,
+ unsigned int line, ext4_fsblk_t block,
+ const char *fmt, ...)
{
va_list args;
struct va_format vaf;
@@ -457,9 +457,9 @@
ext4_handle_error(inode->i_sb);
}
-void ext4_error_file(struct file *file, const char *function,
- unsigned int line, ext4_fsblk_t block,
- const char *fmt, ...)
+void __ext4_error_file(struct file *file, const char *function,
+ unsigned int line, ext4_fsblk_t block,
+ const char *fmt, ...)
{
va_list args;
struct va_format vaf;
@@ -591,7 +591,8 @@
panic("EXT4-fs panic from previous error\n");
}
-void ext4_msg(struct super_block *sb, const char *prefix, const char *fmt, ...)
+void __ext4_msg(struct super_block *sb,
+ const char *prefix, const char *fmt, ...)
{
struct va_format vaf;
va_list args;