quota: Use %pV and __attribute__((format (printf in __quota_error and fix fallout

Use %pV in __quota_error so a single printk can not be
interleaved with other logging messages.
Add __attribute__((format (printf, 3, 4))) so format
and arguments can be verified by compiler.
Make sure printk formats and arguments match.

Block # needed a pointer dereference.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index d1a9193960f1..223b14cd129c 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -31,8 +31,9 @@ static inline bool is_quota_modification(struct inode *inode, struct iattr *ia)
 #define quota_error(sb, fmt, args...) \
         __quota_error((sb), __func__, fmt , ## args)
 
-extern void __quota_error(struct super_block *sb, const char *func,
-                         const char *fmt, ...);
+extern __attribute__((format (printf, 3, 4)))
+void __quota_error(struct super_block *sb, const char *func,
+                   const char *fmt, ...);
 
 /*
  * declaration of quota_function calls in kernel.