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NFSv4: Rate limit the state manager warning messages 

Prevent the state manager from filling up system logs when recovery
fails on the server.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Trond Myklebust 2012-03-12 18:01:48 -04:00
parent 0097143c12
commit 9a3ba43233
3 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/nfs/callback_xdr.c
View File

@ -9,6 +9,8 @@
#include <linux/sunrpc/svc.h>
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include <linux/ratelimit.h>
#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/sunrpc/bc_xprt.h>
#include "nfs4_fs.h"
@ -167,7 +169,7 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
if (hdr->minorversion <= 1) {
hdr->cb_ident = ntohl(*p++); /* ignored by v4.1 */
} else {
printk(KERN_WARNING "NFS: %s: NFSv4 server callback with "
pr_warn_ratelimited("NFS: %s: NFSv4 server callback with "
"illegal minor version %u!\n",
__func__, hdr->minorversion);
return htonl(NFS4ERR_MINOR_VERS_MISMATCH);

2
fs/nfs/nfs4proc.c
View File

@ -1876,7 +1876,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
* the user though...
*/
if (status == -NFS4ERR_BAD_SEQID) {
printk(KERN_WARNING "NFS: v4 server %s "
pr_warn_ratelimited("NFS: v4 server %s "
" returned a bad sequence-id error!\n",
NFS_SERVER(dir)->nfs_client->cl_hostname);
exception.retry = 1;

4
fs/nfs/nfs4state.c
View File

@ -984,7 +984,7 @@ static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
case -NFS4ERR_BAD_SEQID:
if (seqid->sequence->flags & NFS_SEQID_CONFIRMED)
return;
printk(KERN_WARNING "NFS: v4 server returned a bad"
pr_warn_ratelimited("NFS: v4 server returned a bad"
" sequence-id error on an"
" unconfirmed sequence %p!\n",
seqid->sequence);
@ -1840,7 +1840,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
} while (atomic_read(&clp->cl_count) > 1);
return;
out_error:
printk(KERN_WARNING "NFS: state manager failed on NFSv4 server %s"
pr_warn_ratelimited("NFS: state manager failed on NFSv4 server %s"
" with error %d\n", clp->cl_hostname, -status);
nfs4_end_drain_session(clp);
nfs4_clear_state_manager_bit(clp);