2008-10-28 17:32:06

by Dean

[permalink] [raw]
Subject: [PATCH 2/2] NFS: Cleanup decode_attr_fs_locations function.

a) Use correct data types.
b) Use nloc and nserv instead of n and m variable names.
c) Try to clean up formatting of debugging statements.
d) Move while loops to for loops.

Signed-off-by: Dean Hildebrand <[email protected]>
---
fs/nfs/nfs4xdr.c | 40 ++++++++++++++++++----------------------
1 files changed, 18 insertions(+), 22 deletions(-)

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 0b4c565..421609f 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2560,7 +2560,7 @@ out_eio:

static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
{
- int n;
+ u32 nloc;
__be32 *p;
int status = -EIO;

@@ -2574,47 +2574,45 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
if (unlikely(status != 0))
goto out;
READ_BUF(4);
- READ32(n);
- if (n <= 0)
+ READ32(nloc);
+ if (nloc <= 0)
goto out_eio;

- if (n > NFS4_FS_LOCATIONS_MAXENTRIES) {
- dprintk("\n%s: Using first %u of %d fs locations\n",
- __func__, NFS4_FS_LOCATIONS_MAXENTRIES, n);
- n = NFS4_FS_LOCATIONS_MAXENTRIES;
+ if (nloc > NFS4_FS_LOCATIONS_MAXENTRIES) {
+ dprintk("\n%s: Using first %u of %u fs locations\n",
+ __func__, NFS4_FS_LOCATIONS_MAXENTRIES, nloc);
+ nloc = NFS4_FS_LOCATIONS_MAXENTRIES;
}

- res->nlocations = 0;
- while (res->nlocations < n) {
- u32 m;
- unsigned int totalserv, i;
+ for (res->nlocations = 0; res->nlocations < nloc; res->nlocations++) {
+ u32 nserv;
+ unsigned int totalserv, j;
struct nfs4_fs_location *loc = &res->locations[res->nlocations];

READ_BUF(4);
- READ32(m);
+ READ32(nserv);

- totalserv = m;
- if (m > NFS4_FS_LOCATION_MAXSERVERS) {
+ totalserv = nserv;
+ if (nserv > NFS4_FS_LOCATION_MAXSERVERS) {
dprintk("\n%s: Using first %u of %u servers "
"returned for location %u\n",
__func__, NFS4_FS_LOCATION_MAXSERVERS,
- m, res->nlocations);
- m = NFS4_FS_LOCATION_MAXSERVERS;
+ nserv, res->nlocations);
+ nserv = NFS4_FS_LOCATION_MAXSERVERS;
}

- loc->nservers = 0;
dprintk("%s: servers ", __func__);
- while (loc->nservers < m) {
+ for (loc->nservers = 0; loc->nservers < nserv; loc->nservers++) {
struct nfs4_string *server = &loc->servers[loc->nservers];
status = decode_opaque_inline(xdr, &server->len, &server->data);
if (unlikely(status != 0))
goto out_eio;
dprintk("%s ", server->data);
- loc->nservers++;
}
+ dprintk("\n");

/* Decode and ignore overflow servers */
- for (i = loc->nservers; i < totalserv; i++) {
+ for (j = loc->nservers; j < totalserv; j++) {
unsigned int len;
char *data;
status = decode_opaque_inline(xdr, &len, &data);
@@ -2625,8 +2623,6 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
status = decode_pathname(xdr, &loc->rootpath);
if (unlikely(status != 0))
goto out_eio;
-
- res->nlocations++;
}
out:
dprintk("%s: fs_locations done, error = %d\n", __func__, status);
--
1.5.4.5