svcrpc: remove handling of unknown errors from svc_recv
svc_recv() returns only -EINTR or -EAGAIN. If we really want to worry
about the case where it has a bug that causes it to return something
else, we could stick a WARN() in svc_recv. But it's silly to require
every caller to have all this boilerplate to handle that case.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 31a63f8..e515569 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -126,7 +126,7 @@
static int
lockd(void *vrqstp)
{
- int err = 0, preverr = 0;
+ int err = 0;
struct svc_rqst *rqstp = vrqstp;
/* try_to_freeze() is called from svc_recv() */
@@ -165,21 +165,8 @@
* recvfrom routine.
*/
err = svc_recv(rqstp, timeout);
- if (err == -EAGAIN || err == -EINTR) {
- preverr = err;
+ if (err == -EAGAIN || err == -EINTR)
continue;
- }
- if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "%s: unexpected error "
- "from svc_recv (%d)\n", __func__, err);
- preverr = err;
- }
- schedule_timeout_interruptible(HZ);
- continue;
- }
- preverr = err;
-
dprintk("lockd: request from %s\n",
svc_print_addr(rqstp, buf, sizeof(buf)));
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 4c8459e..d9e2a18 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -45,7 +45,7 @@
static int
nfs4_callback_svc(void *vrqstp)
{
- int err, preverr = 0;
+ int err;
struct svc_rqst *rqstp = vrqstp;
set_freezable();
@@ -55,20 +55,8 @@
* Listen for a request on the socket
*/
err = svc_recv(rqstp, MAX_SCHEDULE_TIMEOUT);
- if (err == -EAGAIN || err == -EINTR) {
- preverr = err;
+ if (err == -EAGAIN || err == -EINTR)
continue;
- }
- if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "NFS: %s: unexpected error "
- "from svc_recv (%d)\n", __func__, err);
- preverr = err;
- }
- schedule_timeout_uninterruptible(HZ);
- continue;
- }
- preverr = err;
svc_process(rqstp);
}
return 0;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index dd2b734..2013aa00 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -487,7 +487,7 @@
nfsd(void *vrqstp)
{
struct svc_rqst *rqstp = (struct svc_rqst *) vrqstp;
- int err, preverr = 0;
+ int err;
/* Lock module and set up kernel thread */
mutex_lock(&nfsd_mutex);
@@ -534,16 +534,6 @@
;
if (err == -EINTR)
break;
- else if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "%s: unexpected error "
- "from svc_recv (%d)\n", __func__, -err);
- preverr = err;
- }
- schedule_timeout_uninterruptible(HZ);
- continue;
- }
-
validate_process_creds();
svc_process(rqstp);
validate_process_creds();