Use 32-bit or 64-bit llseek() hashes for directory offsets depending on
the NFS version. NFSv2 gets 32-bit hashes only.
Signed-off-by: Bernd Schubert <bernd.schubert@xxxxxxxxxxxxxxxxxx>
---
fs/nfsd/vfs.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index fd0acca..d79bbcd 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1994,6 +1994,12 @@ nfsd_readdir(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t *offsetp,
if (err)
goto out;
+ /* NFSv2 only supports 32 bit cookies */
+ if (rqstp->rq_vers > 2)
+ file->f_flags &= O_64BITHASH;
+ else
+ file->f_flags &= O_32BITHASH;
+
offset = vfs_llseek(file, offset, 0);
if (offset < 0) {
err = nfserrno((int)offset);
--
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