diff options
| author | NeilBrown <neilb@suse.de> | 2010-09-22 12:55:07 +1000 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2010-09-22 15:33:13 -0400 |
| commit | c67874f942e30039442d925b03793e0a46ddcddd (patch) | |
| tree | 4f5def2f155c74181b015a13d563c1898b64d98a | |
| parent | e95dffa4304186ad87963255f3e5e96b5c41849f (diff) | |
| download | linux-c67874f942e30039442d925b03793e0a46ddcddd.tar.bz2 | |
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The syscall interface is has been replaced by a more flexible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 <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 10 | ||||
| -rw-r--r-- | fs/nfsd/nfsctl.c | 10 |
2 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 842aa9de84a6..076a2c02adaf 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -564,3 +564,13 @@ Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> ---------------------------- +What: access to nfsd auth cache through sys_nfsservctl or '.' files + in the 'nfsd' filesystem. +When: 2.6.40 +Why: This is a legacy interface which have been replaced by a more + dynamic cache. Continuing to maintain this interface is an + unnecessary burden. +Who: NeilBrown <neilb@suse.de> + +---------------------------- + 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 |