From 1bbfc848a915081237660d898bbcf50e4a8fc59f Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Mon, 21 Mar 2011 16:26:42 +0200 Subject: [PATCH] UBIFS: make debugfs files non-seekable Turn the debufs files UBIFS maintains into non-seekable. Indeed, none of them is supposed to be seek'ed. Do this by making the '.lseek()' handler to be 'no_llseek()' and by using 'nonseekable_open()' in the '.open()' operation. This does mean an API break but this debugging API is only used by a couple of test scripts which do not rely in the 'llseek()' operation. Signed-off-by: Artem Bityutskiy --- fs/ubifs/debug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 004d3745dc45..da9ecddf028a 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -2784,7 +2784,7 @@ void dbg_debugfs_exit(void) static int open_debugfs_file(struct inode *inode, struct file *file) { file->private_data = inode->i_private; - return 0; + return nonseekable_open(inode, file); } static ssize_t write_debugfs_file(struct file *file, const char __user *buf, @@ -2814,7 +2814,7 @@ static const struct file_operations dfs_fops = { .open = open_debugfs_file, .write = write_debugfs_file, .owner = THIS_MODULE, - .llseek = default_llseek, + .llseek = no_llseek, }; /**