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NFSD: Add an nfsd4_read::rd_eof field

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[ Upstream commit 24c7fb85498eda1d4c6b42cc4886328429814990 ]

Refactor: Make the EOF result available in the entire NFSv4 READ
path.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chuck Lever 2022-07-22 16:08:57 -04:00 • committed by Ksawlii
parent abc7f2871b
commit 11f94493ca
2 changed files with 8 additions and 8 deletions
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11
fs/nfsd/nfs4xdr.c
View file

@ -3890,7 +3890,6 @@ 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;
@ -3899,7 +3898,8 @@ 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;
@ -3910,7 +3910,7 @@ static __be32 nfsd4_encode_splice_read(
goto out_err;
}
*(p++) = htonl(eof);
*(p++) = htonl(read->rd_eof);
*(p++) = htonl(maxcount);
buf->page_len = maxcount;
@ -3954,7 +3954,6 @@ 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;
@ -3966,7 +3965,7 @@ 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;
@ -3974,7 +3973,7 @@ 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);

5
fs/nfsd/xdr4.h
View file

@ -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 {