From: Dan Carpenter <error27@gmail.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] ocfs2: question about dlmfs_file_read()
Date: Sun, 18 Apr 2010 19:32:13 -0000 [thread overview]
Message-ID: <20100418193201.GD7920@bicker> (raw)
Hello list,
I was looking through the code for something unrelated and I got
confused by this.
fs/ocfs2/dlmfs/dlmfs.c dlmfs_file_read()
261 /* don't read past the lvb */
262 if ((count + *ppos) > i_size_read(inode))
263 readlen = i_size_read(inode) - *ppos;
264 else
265 readlen = count - *ppos;
Shouldn't "readlen" just be "count" here? What prevents it from
being a negative number?
266
267 lvb_buf = kmalloc(readlen, GFP_NOFS);
Anyway, this code has been around for a long time so I'm probably
missing something. I was just curious.
regards,
dan carpenter
next reply other threads:[~2010-04-18 19:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-18 19:32 Dan Carpenter [this message]
2010-04-23 20:50 ` [Ocfs2-devel] ocfs2: question about dlmfs_file_read() Joel Becker
2010-04-23 22:06 ` Sunil Mushran
2010-04-23 22:27 ` Joel Becker
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