From c67874f942e30039442d925b03793e0a46ddcddd Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 22 Sep 2010 12:55:07 +1000 Subject: nfsd: formally deprecate legacy nfsd syscall interface The syscall interface is has been replaced by a more flexible interface since 2.6.0. It is time to work towards discarding the old interface. So add a entry in feature-removal-schedule.txt and print a warning when the interface is used. Signed-off-by: NeilBrown Signed-off-by: J. Bruce Fields --- fs/nfsd/nfsctl.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'fs/nfsd') diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index b53b1d042f1f..7f0fc8861b85 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -121,6 +121,16 @@ static ssize_t nfsctl_transaction_write(struct file *file, const char __user *bu static ssize_t nfsctl_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos) { + static int warned; + if (file->f_dentry->d_name.name[0] == '.' && !warned) { + char name[sizeof(current->comm)]; + printk(KERN_INFO + "Warning: \"%s\" uses deprecated NFSD interface: %s." + " This will be removed in 2.6.40\n", + get_task_comm(name, current), + file->f_dentry->d_name.name); + warned = 1; + } if (! file->private_data) { /* An attempt to read a transaction file without writing * causes a 0-byte write so that the file can return -- cgit v1.2.2