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authorKinglong Mee <kinglongmee@gmail.com>2014-06-10 12:08:19 +0200
committerJ. Bruce Fields <bfields@redhat.com>2014-06-23 17:31:36 +0200
commit3c7aa15d2073d81e56e8ba8771a4ab6f23be7ae2 (patch)
treef76a11c503dd24636dbd36dfb9a58aa3d76ad54e /fs/nfsd/nfs4xdr.c
parentLinux 3.16-rc2 (diff)
downloadlinux-3c7aa15d2073d81e56e8ba8771a4ab6f23be7ae2.tar.xz
linux-3c7aa15d2073d81e56e8ba8771a4ab6f23be7ae2.zip
NFSD: Using min/max/min_t/max_t for calculate
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
-rw-r--r--fs/nfsd/nfs4xdr.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 83baf2bfe9e9..30913c83ccb0 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3134,9 +3134,7 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
len = maxcount;
v = 0;
- thislen = (void *)xdr->end - (void *)xdr->p;
- if (len < thislen)
- thislen = len;
+ thislen = min(len, ((void *)xdr->end - (void *)xdr->p));
p = xdr_reserve_space(xdr, (thislen+3)&~3);
WARN_ON_ONCE(!p);
resp->rqstp->rq_vec[v].iov_base = p;
@@ -3203,10 +3201,8 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
xdr_commit_encode(xdr);
maxcount = svc_max_payload(resp->rqstp);
- if (maxcount > xdr->buf->buflen - xdr->buf->len)
- maxcount = xdr->buf->buflen - xdr->buf->len;
- if (maxcount > read->rd_length)
- maxcount = read->rd_length;
+ maxcount = min_t(unsigned long, maxcount, (xdr->buf->buflen - xdr->buf->len));
+ maxcount = min_t(unsigned long, maxcount, read->rd_length);
if (!read->rd_filp) {
err = nfsd_get_tmp_read_open(resp->rqstp, read->rd_fhp,