diff options
| -rw-r--r-- | fs/nfsd/blocklayout.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index 03d647bf195d..cdefaa331a07 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -181,6 +181,17 @@ nfsd4_block_proc_layoutcommit(struct inode *inode, } const struct nfsd4_layout_ops bl_layout_ops = { + /* + * Pretend that we send notification to the client. This is a blatant + * lie to force recent Linux clients to cache our device IDs. + * We rarely ever change the device ID, so the harm of leaking deviceids + * for a while isn't too bad. Unfortunately RFC5661 is a complete mess + * in this regard, but I filed errata 4119 for this a while ago, and + * hopefully the Linux client will eventually start caching deviceids + * without this again. + */ + .notify_types = + NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE, .proc_getdeviceinfo = nfsd4_block_proc_getdeviceinfo, .encode_getdeviceinfo = nfsd4_block_encode_getdeviceinfo, .proc_layoutget = nfsd4_block_proc_layoutget, |