linux-kernel - [PATCH 1/2] fat: add fat_msg

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Date:	Sun, 13 May 2012 07:03:25 -0400
From:	Namjae Jeon <linkinjeon@...il.com>
To:	hirofumi@...l.parknet.co.jp
Cc:	linux-kernel@...r.kernel.org, Namjae Jeon <linkinjeon@...il.com>,
	Amit Sahrawat <amit.sahrawat83@...il.com>
Subject: [PATCH 1/2] fat: add fat_msg_ratelimit.

I tried to add fat_msg_ratelimit to limit many message at once.

Signed-off-by: Namjae Jeon <linkinjeon@...il.com>
Signed-off-by: Amit Sahrawat <amit.sahrawat83@...il.com>
---
 fs/fat/fat.h  |    9 +++++++--
 fs/fat/misc.c |   18 ++++++++++--------
 2 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 951d12b..3c581c7 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -333,8 +333,13 @@ void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...);
 	__fat_fs_error(sb, 1, fmt , ## args)
 #define fat_fs_error_ratelimit(sb, fmt, args...) \
 	__fat_fs_error(sb, __ratelimit(&MSDOS_SB(sb)->ratelimit), fmt , ## args)
-__printf(3, 4) __cold
-void fat_msg(struct super_block *sb, const char *level, const char *fmt, ...);
+__printf(4, 5) __cold
+void __fat_msg(struct super_block *sb, int report, const char *level,
+			const char *fmt, ...);
+#define	fat_msg(sb, level, fmt, args...)		\
+	__fat_msg(sb, 1, level, fmt, ## args)
+#define	fat_msg_ratelimit(sb, level, fmt, args...)	\
+	__fat_msg(sb, __ratelimit(&MSDOS_SB(sb)->ratelimit), level, fmt, ## args)
 extern int fat_clusters_flush(struct super_block *sb);
 extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
 extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts,
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 6d93360..dcdb091 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -45,19 +45,21 @@ void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
 EXPORT_SYMBOL_GPL(__fat_fs_error);
 
 /**
- * fat_msg() - print preformated FAT specific messages. Every thing what is
+ * __fat_msg() - print preformated FAT specific messages. Every thing what is
  * not fat_fs_error() should be fat_msg().
  */
-void fat_msg(struct super_block *sb, const char *level, const char *fmt, ...)
+void __fat_msg(struct super_block *sb, int report, const char *level,
+			const char *fmt, ...)
 {
 	struct va_format vaf;
 	va_list args;
-
-	va_start(args, fmt);
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	printk("%sFAT-fs (%s): %pV\n", level, sb->s_id, &vaf);
-	va_end(args);
+	if (report) {
+		va_start(args, fmt);
+		vaf.fmt = fmt;
+		vaf.va = &args;
+		printk("%sFAT-fs (%s): %pV\n", level, sb->s_id, &vaf);
+		va_end(args);
+	}
 }
 
 /* Flushes the number of free clusters on FAT32 */
-- 
1.7.5.4

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