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| author | Joe Perches <joe@perches.com> | 2013-07-01 14:12:37 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-07-01 14:12:37 +0200 |
| commit | e7c96e8e47baf263d93a8dbbebca7216a912ca05 (patch) | |
| tree | cec5ac7a66589437fe64708eb854fdc8b33250b7 /fs/ext4/super.c | |
| parent | ext4: improve extent cache shrink mechanism to avoid to burn CPU time (diff) | |
| download | linux-e7c96e8e47baf263d93a8dbbebca7216a912ca05.tar.xz linux-e7c96e8e47baf263d93a8dbbebca7216a912ca05.zip | |
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>
Diffstat (limited to '')
| -rw-r--r-- | fs/ext4/super.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index cc8201180b30..85b3dd60169b 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -428,9 +428,9 @@ void __ext4_error(struct super_block *sb, const char *function, 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 @@ void ext4_error_inode(struct inode *inode, const char *function, 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 @@ void __ext4_abort(struct super_block *sb, const char *function, 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; |