From 9303bbd3de3b25061de11e4d8c891fa9592fad8c Mon Sep 17 00:00:00 2001 From: Benny Halevy Date: Tue, 25 May 2010 09:50:23 +0300 Subject: [PATCH] nfsd: nfs4callback encode_stateid helper function To be used also for the pnfs cb_layoutrecall callback Signed-off-by: Benny Halevy [nfsd4: fix cb_recall encoding] "nfsd: nfs4callback encode_stateid helper function" forgot to reserve more space after return from the new helper. Reported-by: Michael Groshans Signed-off-by: Benny Halevy Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4callback.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index c8dd03c3f0fd..874a56a0801c 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -202,6 +202,16 @@ nfs_cb_stat_to_errno(int stat) * XDR encode */ +static void +encode_stateid(struct xdr_stream *xdr, stateid_t *sid) +{ + __be32 *p; + + RESERVE_SPACE(sizeof(stateid_t)); + WRITE32(sid->si_generation); + WRITEMEM(&sid->si_opaque, sizeof(stateid_opaque_t)); +} + static void encode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr) { @@ -227,10 +237,10 @@ encode_cb_recall(struct xdr_stream *xdr, struct nfs4_delegation *dp, __be32 *p; int len = dp->dl_fh.fh_size; - RESERVE_SPACE(12+sizeof(dp->dl_stateid) + len); + RESERVE_SPACE(4); WRITE32(OP_CB_RECALL); - WRITE32(dp->dl_stateid.si_generation); - WRITEMEM(&dp->dl_stateid.si_opaque, sizeof(stateid_opaque_t)); + encode_stateid(xdr, &dp->dl_stateid); + RESERVE_SPACE(8 + (XDR_QUADLEN(len) << 2)); WRITE32(0); /* truncate optimization not implemented */ WRITE32(len); WRITEMEM(&dp->dl_fh.fh_base, len); -- GitLab