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authorJ. Bruce Fields <bfields@redhat.com>2012-08-17 21:47:53 -0400
committerJ. Bruce Fields <bfields@redhat.com>2012-08-21 17:42:00 -0400
commit5b444cc9a4c979aa0fa185c8ddca221462a34b7a (patch)
tree7a2b23292f279c31bacdabd95a709605e194137a /fs
parent9f9d2ebe693a98d517257e1a39f61120b4473b96 (diff)
downloadblackbird-op-linux-5b444cc9a4c979aa0fa185c8ddca221462a34b7a.tar.gz
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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>
Diffstat (limited to 'fs')
-rw-r--r--fs/lockd/svc.c17
-rw-r--r--fs/nfs/callback.c16
-rw-r--r--fs/nfsd/nfssvc.c12
3 files changed, 5 insertions, 40 deletions
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 31a63f87b806..e515569f0f8b 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -126,7 +126,7 @@ static void restart_grace(void)
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 @@ lockd(void *vrqstp)
* 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 4c8459e5bdee..d9e2a1880783 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -45,7 +45,7 @@ unsigned short nfs_callback_tcpport6;
static int
nfs4_callback_svc(void *vrqstp)
{
- int err, preverr = 0;
+ int err;
struct svc_rqst *rqstp = vrqstp;
set_freezable();
@@ -55,20 +55,8 @@ nfs4_callback_svc(void *vrqstp)
* 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 dd2b7343d741..2013aa001dab 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -487,7 +487,7 @@ static int
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 @@ nfsd(void *vrqstp)
;
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();
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