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>
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index e6c01e8..39c5eb3 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -120,10 +120,7 @@
iap->ia_valid |= ATTR_SIZE;
p = xdr_decode_hyper(p, &newsize);
- if (newsize <= NFS_OFFSET_MAX)
- iap->ia_size = newsize;
- else
- iap->ia_size = NFS_OFFSET_MAX;
+ iap->ia_size = min_t(u64, newsize, NFS_OFFSET_MAX);
}
if ((tmp = ntohl(*p++)) == 1) { /* set to server time */
iap->ia_valid |= ATTR_ATIME;
@@ -338,10 +335,8 @@
return 0;
p = xdr_decode_hyper(p, &args->offset);
- len = args->count = ntohl(*p++);
-
- if (len > max_blocksize)
- len = max_blocksize;
+ args->count = ntohl(*p++);
+ len = min(args->count, max_blocksize);
/* set up the kvec */
v=0;
@@ -349,7 +344,7 @@
struct page *p = *(rqstp->rq_next_page++);
rqstp->rq_vec[v].iov_base = page_address(p);
- rqstp->rq_vec[v].iov_len = len < PAGE_SIZE? len : PAGE_SIZE;
+ rqstp->rq_vec[v].iov_len = min_t(unsigned int, len, PAGE_SIZE);
len -= rqstp->rq_vec[v].iov_len;
v++;
}
@@ -484,9 +479,7 @@
}
/* now copy next page if there is one */
if (len && !avail && rqstp->rq_arg.page_len) {
- avail = rqstp->rq_arg.page_len;
- if (avail > PAGE_SIZE)
- avail = PAGE_SIZE;
+ avail = min_t(unsigned int, rqstp->rq_arg.page_len, PAGE_SIZE);
old = page_address(rqstp->rq_arg.pages[0]);
}
while (len && avail && *old) {
@@ -571,10 +564,7 @@
args->verf = p; p += 2;
args->dircount = ~0;
args->count = ntohl(*p++);
-
- if (args->count > PAGE_SIZE)
- args->count = PAGE_SIZE;
-
+ args->count = min_t(u32, args->count, PAGE_SIZE);
args->buffer = page_address(*(rqstp->rq_next_page++));
return xdr_argsize_check(rqstp, p);
@@ -595,10 +585,7 @@
args->dircount = ntohl(*p++);
args->count = ntohl(*p++);
- len = (args->count > max_blocksize) ? max_blocksize :
- args->count;
- args->count = len;
-
+ len = args->count = min(args->count, max_blocksize);
while (len > 0) {
struct page *p = *(rqstp->rq_next_page++);
if (!args->buffer)
@@ -913,8 +900,7 @@
*/
/* truncate filename if too long */
- if (namlen > NFS3_MAXNAMLEN)
- namlen = NFS3_MAXNAMLEN;
+ namlen = min(namlen, NFS3_MAXNAMLEN);
slen = XDR_QUADLEN(namlen);
elen = slen + NFS3_ENTRY_BAGGAGE