diff mbox series

NFS: Correct size calculation for create reply length

Message ID 20210302205814.1228549-1-sorenson@redhat.com (mailing list archive)
State New
Headers show
Series NFS: Correct size calculation for create reply length | expand

Commit Message

Frank Sorenson March 2, 2021, 8:58 p.m. UTC
CREATE requests return a post_op_fh3, rather than nfs_fh3. The
post_op_fh3 includes an extra word to indicate 'handle_follows'.

Without that additional word, create fails when full 64-byte
filehandles are in use.

Add NFS3_post_op_fh_sz, and correct the size calculation for
NFS3_createres_sz.

Signed-off-by: Frank Sorenson <sorenson@redhat.com>
---
 fs/nfs/nfs3xdr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index ca10072644ff..ed1c83738c30 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -36,6 +36,7 @@ 
 #define NFS3_pagepad_sz		(1) /* Page padding */
 #define NFS3_fhandle_sz		(1+16)
 #define NFS3_fh_sz		(NFS3_fhandle_sz)	/* shorthand */
+#define NFS3_post_op_fh_sz	(1+NFS3_fh_sz)
 #define NFS3_sattr_sz		(15)
 #define NFS3_filename_sz	(1+(NFS3_MAXNAMLEN>>2))
 #define NFS3_path_sz		(1+(NFS3_MAXPATHLEN>>2))
@@ -73,7 +74,7 @@ 
 #define NFS3_readlinkres_sz	(1+NFS3_post_op_attr_sz+1+NFS3_pagepad_sz)
 #define NFS3_readres_sz		(1+NFS3_post_op_attr_sz+3+NFS3_pagepad_sz)
 #define NFS3_writeres_sz	(1+NFS3_wcc_data_sz+4)
-#define NFS3_createres_sz	(1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
+#define NFS3_createres_sz	(1+NFS3_post_op_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
 #define NFS3_renameres_sz	(1+(2 * NFS3_wcc_data_sz))
 #define NFS3_linkres_sz		(1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
 #define NFS3_readdirres_sz	(1+NFS3_post_op_attr_sz+2+NFS3_pagepad_sz)