This is a note to let you know that I've just added the patch titled
NFSD: Add an nfsd4_read::rd_eof field
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfsd-add-an-nfsd4_read-rd_eof-field.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1d7b52c1468eca762fa405f9beeb7159d1866dd3
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date: Fri Jul 22 16:08:57 2022 -0400
NFSD: Add an nfsd4_read::rd_eof field
[ Upstream commit 24c7fb85498eda1d4c6b42cc4886328429814990 ]
Refactor: Make the EOF result available in the entire NFSv4 READ
path.
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index afc8a51cf60f1..b31103221fee9 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3887,7 +3887,6 @@ static __be32 nfsd4_encode_splice_read(
struct xdr_stream *xdr = resp->xdr;
struct xdr_buf *buf = xdr->buf;
int status, space_left;
- u32 eof;
__be32 nfserr;
__be32 *p = xdr->p - 2;
@@ -3896,7 +3895,8 @@ static __be32 nfsd4_encode_splice_read(
return nfserr_resource;
nfserr = nfsd_splice_read(read->rd_rqstp, read->rd_fhp,
- file, read->rd_offset, &maxcount, &eof);
+ file, read->rd_offset, &maxcount,
+ &read->rd_eof);
read->rd_length = maxcount;
if (nfserr)
goto out_err;
@@ -3907,7 +3907,7 @@ static __be32 nfsd4_encode_splice_read(
goto out_err;
}
- *(p++) = htonl(eof);
+ *(p++) = htonl(read->rd_eof);
*(p++) = htonl(maxcount);
buf->page_len = maxcount;
@@ -3951,7 +3951,6 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
struct file *file, unsigned long maxcount)
{
struct xdr_stream *xdr = resp->xdr;
- u32 eof;
int starting_len = xdr->buf->len - 8;
__be32 nfserr;
__be32 tmp;
@@ -3963,7 +3962,7 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
nfserr = nfsd_readv(resp->rqstp, read->rd_fhp, file, read->rd_offset,
resp->rqstp->rq_vec, read->rd_vlen, &maxcount,
- &eof);
+ &read->rd_eof);
read->rd_length = maxcount;
if (nfserr)
return nfserr;
@@ -3971,7 +3970,7 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
return nfserr_io;
xdr_truncate_encode(xdr, starting_len + 8 + xdr_align_size(maxcount));
- tmp = htonl(eof);
+ tmp = htonl(read->rd_eof);
write_bytes_to_xdr_buf(xdr->buf, starting_len , &tmp, 4);
tmp = htonl(maxcount);
write_bytes_to_xdr_buf(xdr->buf, starting_len + 4, &tmp, 4);
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index 77286e8c9ab02..0737f81c1004e 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -302,9 +302,10 @@ struct nfsd4_read {
u32 rd_length; /* request */
int rd_vlen;
struct nfsd_file *rd_nf;
-
+
struct svc_rqst *rd_rqstp; /* response */
- struct svc_fh *rd_fhp; /* response */
+ struct svc_fh *rd_fhp; /* response */
+ u32 rd_eof; /* response */
};
struct nfsd4_readdir {
