From: Joe Perches <joe@perches.com>
To: Erez Zadok <ezk@cs.sunysb.edu>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, viro@ftp.linux.org.uk,
hch@infradead.org
Subject: Re: [PATCH 1/3] Unionfs: use printk KERN_CONT for debugging messages
Date: Wed, 02 Jan 2008 22:26:20 -0800 [thread overview]
Message-ID: <1199341581.6615.39.camel@localhost> (raw)
In-Reply-To: <1199339862303-git-send-email-ezk@cs.sunysb.edu>
On Thu, 2008-01-03 at 00:57 -0500, Erez Zadok wrote:
> diff --git a/fs/unionfs/debug.c b/fs/unionfs/debug.c
> index c2b8b58..5f1d887 100644
> --- a/fs/unionfs/debug.c
> +++ b/fs/unionfs/debug.c
> void __show_inode_times(const struct inode *inode,
> @@ -472,15 +473,15 @@ void __show_inode_times(const struct inode *inode,
> if (unlikely(!lower_inode))
> continue;
> pr_debug("IT(%lu:%d): ", inode->i_ino, bindex);
> - pr_debug("%s:%s:%d ", file, fxn, line);
> - pr_debug("um=%lu/%lu lm=%lu/%lu ",
> - inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
> - lower_inode->i_mtime.tv_sec,
> - lower_inode->i_mtime.tv_nsec);
> - pr_debug("uc=%lu/%lu lc=%lu/%lu\n",
> - inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
> - lower_inode->i_ctime.tv_sec,
> - lower_inode->i_ctime.tv_nsec);
> + printk(KERN_CONT "%s:%s:%d ", file, fxn, line);
> + printk(KERN_CONT "um=%lu/%lu lm=%lu/%lu ",
> + inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
> + lower_inode->i_mtime.tv_sec,
> + lower_inode->i_mtime.tv_nsec);
> + printk(KERN_CONT "uc=%lu/%lu lc=%lu/%lu\n",
> + inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
> + lower_inode->i_ctime.tv_sec,
> + lower_inode->i_ctime.tv_nsec);
> }
> }
>
I think printks should be single statements and
KERN_CONT should be used as sparingly as possible.
Perhaps:
pr_debug("IT(%lu:%d): %s:%s:%d "
"um=%lu/%lu lm=%lu/%lu "
"uc=%lu/%lu lc=%lu/%lu\n",
inode->i_ino, bindex, file, fnx, line,
inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
lower_inode->i_mtime.tv_sec,
lower_inode->i_mtime.tv_nsec
inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
lower_inode->i_ctime.tv_sec,
lower_inode->i_ctime.tv_nsec);
> @@ -497,15 +498,15 @@ void __show_dinode_times(const struct dentry *dentry,
> continue;
> pr_debug("DT(%s:%lu:%d): ", dentry->d_name.name, inode->i_ino,
> bindex);
> - pr_debug("%s:%s:%d ", file, fxn, line);
> - pr_debug("um=%lu/%lu lm=%lu/%lu ",
> - inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
> - lower_inode->i_mtime.tv_sec,
> - lower_inode->i_mtime.tv_nsec);
> - pr_debug("uc=%lu/%lu lc=%lu/%lu\n",
> - inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
> - lower_inode->i_ctime.tv_sec,
> - lower_inode->i_ctime.tv_nsec);
> + printk(KERN_CONT "%s:%s:%d ", file, fxn, line);
> + printk(KERN_CONT "um=%lu/%lu lm=%lu/%lu ",
> + inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
> + lower_inode->i_mtime.tv_sec,
> + lower_inode->i_mtime.tv_nsec);
> + printk(KERN_CONT "uc=%lu/%lu lc=%lu/%lu\n",
> + inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
> + lower_inode->i_ctime.tv_sec,
> + lower_inode->i_ctime.tv_nsec);
> }
> }
>
and
pr_debug("DT(%s:%lu:%d): %s:%s:%d "
"um=%lu/%lu lm=%lu/%lu "
"uc=%lu/%lu lc=%lu/%lu\n",
dentry->d_name.name, inode->i_ino, bindex,
file, fnx, line,
inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
lower_inode->i_mtime.tv_sec,
lower_inode->i_mtime.tv_nsec
inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
lower_inode->i_ctime.tv_sec,
lower_inode->i_ctime.tv_nsec);
>
> @@ -524,9 +525,10 @@ void __show_inode_counts(const struct inode *inode,
> lower_inode = unionfs_lower_inode_idx(inode, bindex);
> if (unlikely(!lower_inode))
> continue;
> - pr_debug("SIC(%lu:%d:%d): ", inode->i_ino, bindex,
> - atomic_read(&(inode)->i_count));
> - pr_debug("lc=%d ", atomic_read(&(lower_inode)->i_count));
> - pr_debug("%s:%s:%d\n", file, fxn, line);
> + printk(KERN_CONT "SIC(%lu:%d:%d): ", inode->i_ino, bindex,
> + atomic_read(&(inode)->i_count));
> + printk(KERN_CONT "lc=%d ",
> + atomic_read(&(lower_inode)->i_count));
> + printk(KERN_CONT "%s:%s:%d\n", file, fxn, line);
> }
> }
and
pr_debug("SIC(%lu:%d:%d): lc=%d %s:%s:%d\n",
inode->i_ino, bindex,
atomic_read(&(inode)->i_count),
atomic_read(&(lower_inode)->i_count),
file, fxn, line);
next prev parent reply other threads:[~2008-01-03 6:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-03 5:57 [GIT PULL -mm] 0/3 Unionfs updates/fixes/cleanups Erez Zadok
2008-01-03 5:57 ` [PATCH 1/3] Unionfs: use printk KERN_CONT for debugging messages Erez Zadok
2008-01-03 6:26 ` Joe Perches [this message]
2008-01-03 18:36 ` Erez Zadok
2008-01-03 5:57 ` [PATCH 2/3] Unionfs: locking fixes Erez Zadok
2008-01-03 5:57 ` [PATCH 3/3] Unionfs: use VFS helpers to manipulate i_nlink Erez Zadok
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