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From: Chuck Lever <chuck.lever@oracle.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH v1 01/61] NFSD: Fix returned READDIR offset cookie
Date: Fri, 13 Nov 2020 10:02:28 -0500	[thread overview]
Message-ID: <160527974881.6186.12322949032060570965.stgit@klimt.1015granger.net> (raw)
In-Reply-To: <160527962905.6186.17550620763636619885.stgit@klimt.1015granger.net>

Code inspection shows that the server's NFSv3 READDIR implementation
returns the same offset cookie as the client sent, instead of the
last cookie it returns in the reply's dirlist. This is unlike the
NFSv2 READDIR, NFSv3 READDIRPLUS, and NFSv4 READDIR implementations,
and it's been like this since the beginning of kernel git history.

I copied the logic from nfsd3_proc_readdirplus().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/nfsd/nfs3proc.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index d9be589fed15..e0ad18d6b5a8 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -430,6 +430,7 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp)
 	struct nfsd3_readdirargs *argp = rqstp->rq_argp;
 	struct nfsd3_readdirres  *resp = rqstp->rq_resp;
 	int		count = 0;
+	loff_t		offset;
 	struct page	**p;
 	caddr_t		page_addr = NULL;
 
@@ -448,7 +449,9 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp)
 	resp->common.err = nfs_ok;
 	resp->buffer = argp->buffer;
 	resp->rqstp = rqstp;
-	resp->status = nfsd_readdir(rqstp, &resp->fh, (loff_t *)&argp->cookie,
+	offset = argp->cookie;
+
+	resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
 				    &resp->common, nfs3svc_encode_entry);
 	memcpy(resp->verf, argp->verf, 8);
 	count = 0;
@@ -464,8 +467,6 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp)
 	}
 	resp->count = count >> 2;
 	if (resp->offset) {
-		loff_t offset = argp->cookie;
-
 		if (unlikely(resp->offset1)) {
 			/* we ended up with offset on a page boundary */
 			*resp->offset = htonl(offset >> 32);



  reply	other threads:[~2020-11-13 15:02 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-13 15:02 [PATCH v1 00/61] Update NFSD XDR functions Chuck Lever
2020-11-13 15:02 ` Chuck Lever [this message]
2020-11-13 15:02 ` [PATCH v1 02/61] SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() Chuck Lever
2020-11-13 15:02 ` [PATCH v1 03/61] SUNRPC: Prepare for xdr_stream-style decoding on the server-side Chuck Lever
2020-11-13 15:02 ` [PATCH v1 04/61] NFSD: Add common helpers to decode void args and encode void results Chuck Lever
2020-11-13 15:02 ` [PATCH v1 05/61] NFSD: Replace the internals of the READ_BUF() macro Chuck Lever
2020-11-13 15:02 ` [PATCH v1 06/61] NFSD: Replace READ* macros in nfsd4_decode_access() Chuck Lever
2020-11-14  9:28   ` Christoph Hellwig
2020-11-14 18:26     ` Chuck Lever
2020-11-14 18:45       ` Christoph Hellwig
2020-11-14 18:48         ` Chuck Lever
2020-11-14 18:49           ` Christoph Hellwig
2020-11-13 15:03 ` [PATCH v1 07/61] NFSD: Replace READ* macros in nfsd4_decode_close() Chuck Lever
2020-11-14  9:29   ` Christoph Hellwig
2020-11-14 18:30     ` Chuck Lever
2020-11-14 18:47       ` Christoph Hellwig
2020-11-13 15:03 ` [PATCH v1 08/61] NFSD: Replace READ* macros in nfsd4_decode_commit() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 09/61] NFSD: Replace READ* macros in nfsd4_decode_create() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 10/61] NFSD: Replace READ* macros in nfsd4_decode_bitmap() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 11/61] NFSD: Replace READ* macros in nfsd4_decode_link() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 12/61] NFSD: Relocate nfsd4_decode_opaque() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 13/61] NFSD: Replace READ* macros in nfsd4_decode_lock() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 14/61] NFSD: Replace READ* macros in nfsd4_decode_lockt() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 15/61] NFSD: Replace READ* macros in nfsd4_decode_locku() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 16/61] NFSD: Replace READ* macros in nfsd4_decode_lookup() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 17/61] NFSD: Replace READ* macros in nfsd4_decode_time() Chuck Lever
2020-11-13 15:03 ` [PATCH v1 18/61] NFSD: Replace READ* macros in nfsd4_decode_fattr() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 19/61] NFSD: Replace READ* macros in nfsd4_decode_open() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 20/61] NFSD: Replace READ* macros in nfsd4_decode_open_confirm() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 21/61] NFSD: Replace READ* macros in nfsd4_decode_open_downgrade() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 22/61] NFSD: Replace READ* macros in nfsd4_decode_putfh() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 23/61] NFSD: Replace READ* macros in nfsd4_decode_read() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 24/61] NFSD: Replace READ* macros in nfsd4_decode_readdir() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 25/61] NFSD: Replace READ* macros in nfsd4_decode_remove() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 26/61] NFSD: Replace READ* macros in nfsd4_decode_rename() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 27/61] NFSD: Replace READ* macros in nfsd4_decode_renew() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 28/61] NFSD: Replace READ* macros in nfsd4_decode_secinfo() Chuck Lever
2020-11-13 15:04 ` [PATCH v1 29/61] NFSD: Replace READ* macros in nfsd4_decode_setclientid() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 30/61] NFSD: Replace READ* macros in nfsd4_decode_setclientid_confirm() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 31/61] NFSD: Replace READ* macros in nfsd4_decode_verify() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 32/61] NFSD: Replace READ* macros in nfsd4_decode_write() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 33/61] NFSD: Replace READ* macros in nfsd4_decode_release_lockowner() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 34/61] NFSD: Replace READ* macros in nfsd4_decode_cb_sec() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 35/61] NFSD: Replace READ* macros in nfsd4_decode_backchannel_ctl() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 36/61] NFSD: Replace READ* macros in nfsd4_decode_bind_conn_to_session() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 37/61] NFSD: Add a separate decoder to handle state_protect_ops Chuck Lever
2020-11-13 15:05 ` [PATCH v1 38/61] NFSD: Add a separate decoder for ssv_sp_parms Chuck Lever
2020-11-13 15:05 ` [PATCH v1 39/61] NFSD: Add a helper to decode state_protect4_a Chuck Lever
2020-11-13 15:05 ` [PATCH v1 40/61] NFSD: Replace READ* macros in nfsd4_decode_exchange_id() Chuck Lever
2020-11-13 15:05 ` [PATCH v1 41/61] NFSD: Replace READ* macros in nfsd4_decode_create_session() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 42/61] NFSD: Replace READ* macros in nfsd4_decode_destroy_session() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 43/61] NFSD: Replace READ* macros in nfsd4_decode_free_stateid() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 44/61] NFSD: Replace READ* macros in nfsd4_decode_getdeviceinfo() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 45/61] NFSD: Replace READ* macros in nfsd4_decode_layoutcommit() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 46/61] NFSD: Replace READ* macros in nfsd4_decode_layoutget() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 47/61] NFSD: Replace READ* macros in nfsd4_decode_layoutreturn() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 48/61] NFSD: Replace READ* macros in nfsd4_decode_secinfo_no_name() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 49/61] NFSD: Replace READ* macros in nfsd4_decode_sequence() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 50/61] NFSD: Replace READ* macros in nfsd4_decode_test_stateid() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 51/61] NFSD: Replace READ* macros in nfsd4_decode_destroy_clientid() Chuck Lever
2020-11-13 15:06 ` [PATCH v1 52/61] NFSD: Replace READ* macros in nfsd4_decode_reclaim_complete() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 53/61] NFSD: Replace READ* macros in nfsd4_decode_fallocate() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 54/61] NFSD: Replace READ* macros in nfsd4_decode_clone() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 55/61] NFSD: Replace READ* macros in nfsd4_decode_copy() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 56/61] NFSD: Replace READ* macros in nfsd4_decode_seek() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 57/61] NFSD: Replace READ* macros in nfsd4_decode_xattr_name() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 58/61] NFSD: Replace READ* macros in nfsd4_decode_setxattr() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 59/61] NFSD: Replace READ* macros in nfsd4_decode_listxattrs() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 60/61] NFSD: Replace READ* macros in nfsd4_decode_compound() Chuck Lever
2020-11-13 15:07 ` [PATCH v1 61/61] NFSD: Remove macros that are no longer used Chuck Lever

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