quota: Hide warnings about writes to the filesystem before quota was turned on

For a root filesystem write to the filesystem before quota is turned on happens
regularly and there's no way around it because of writes to syslog, /etc/mtab,
and similar. So the warning is rather pointless for ordinary users. It's
still useful during development so we just hide the warning behind
__DQUOT_PARANOIA config option.

Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index e0b870f..f9a3751 100644 (file)
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -874,14 +874,18 @@ static int dqinit_needed(struct inode *inode, int type)
 static void add_dquot_ref(struct super_block *sb, int type)
 {
        struct inode *inode, *old_inode = NULL;
+#ifdef __DQUOT_PARANOIA
        int reserved = 0;
+#endif
 
        spin_lock(&inode_lock);
        list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
                if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE|I_NEW))
                        continue;
+#ifdef __DQUOT_PARANOIA
                if (unlikely(inode_get_rsv_space(inode) > 0))
                        reserved = 1;
+#endif
                if (!atomic_read(&inode->i_writecount))
                        continue;
                if (!dqinit_needed(inode, type))
@@ -903,11 +907,13 @@ static void add_dquot_ref(struct super_block *sb, int type)
        spin_unlock(&inode_lock);
        iput(old_inode);
 
+#ifdef __DQUOT_PARANOIA
        if (reserved) {
                printk(KERN_WARNING "VFS (%s): Writes happened before quota"
                        " was turned on thus quota information is probably "
                        "inconsistent. Please run quotacheck(8).\n", sb->s_id);
        }
+#endif
 }
 
 /*