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-rw-r--r--fs/afs/addr_list.c2
-rw-r--r--fs/afs/dynroot.c2
-rw-r--r--fs/cifs/dns_resolve.c2
-rw-r--r--fs/nfs/dns_resolve.c2
-rw-r--r--include/linux/dns_resolver.h3
-rw-r--r--net/ceph/messenger.c2
-rw-r--r--net/dns_resolver/dns_query.c6
7 files changed, 12 insertions, 7 deletions
diff --git a/fs/afs/addr_list.c b/fs/afs/addr_list.c
index 967db336d11a..9eaff55df7b4 100644
--- a/fs/afs/addr_list.c
+++ b/fs/afs/addr_list.c
@@ -251,7 +251,7 @@ struct afs_vlserver_list *afs_dns_query(struct afs_cell *cell, time64_t *_expiry
_enter("%s", cell->name);
ret = dns_query("afsdb", cell->name, cell->name_len, "srv=1",
- &result, _expiry);
+ &result, _expiry, true);
if (ret < 0) {
_leave(" = %d [dns]", ret);
return ERR_PTR(ret);
diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c
index a9ba81ddf154..07484b5a3bbb 100644
--- a/fs/afs/dynroot.c
+++ b/fs/afs/dynroot.c
@@ -46,7 +46,7 @@ static int afs_probe_cell_name(struct dentry *dentry)
return 0;
}
- ret = dns_query("afsdb", name, len, "srv=1", NULL, NULL);
+ ret = dns_query("afsdb", name, len, "srv=1", NULL, NULL, false);
if (ret == -ENODATA)
ret = -EDESTADDRREQ;
return ret;
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 7ede7306599f..1e21b2528cfb 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -77,7 +77,7 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
goto name_is_IP_address;
/* Perform the upcall */
- rc = dns_query(NULL, hostname, len, NULL, ip_addr, NULL);
+ rc = dns_query(NULL, hostname, len, NULL, ip_addr, NULL, false);
if (rc < 0)
cifs_dbg(FYI, "%s: unable to resolve: %*.*s\n",
__func__, len, len, hostname);
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index a7d3df85736d..e6a700f01452 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -22,7 +22,7 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
char *ip_addr = NULL;
int ip_len;
- ip_len = dns_query(NULL, name, namelen, NULL, &ip_addr, NULL);
+ ip_len = dns_query(NULL, name, namelen, NULL, &ip_addr, NULL, false);
if (ip_len > 0)
ret = rpc_pton(net, ip_addr, ip_len, sa, salen);
else
diff --git a/include/linux/dns_resolver.h b/include/linux/dns_resolver.h
index 34a744a1bafc..f2b3ae22e6b7 100644
--- a/include/linux/dns_resolver.h
+++ b/include/linux/dns_resolver.h
@@ -27,6 +27,7 @@
#include <uapi/linux/dns_resolver.h>
extern int dns_query(const char *type, const char *name, size_t namelen,
- const char *options, char **_result, time64_t *_expiry);
+ const char *options, char **_result, time64_t *_expiry,
+ bool invalidate);
#endif /* _LINUX_DNS_RESOLVER_H */
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 3083988ce729..579d6a1ac7fe 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1889,7 +1889,7 @@ static int ceph_dns_resolve_name(const char *name, size_t namelen,
return -EINVAL;
/* do dns_resolve upcall */
- ip_len = dns_query(NULL, name, end - name, NULL, &ip_addr, NULL);
+ ip_len = dns_query(NULL, name, end - name, NULL, &ip_addr, NULL, false);
if (ip_len > 0)
ret = ceph_pton(ip_addr, ip_len, ss, -1, NULL);
else
diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c
index 19aa32fc1802..2d260432b3be 100644
--- a/net/dns_resolver/dns_query.c
+++ b/net/dns_resolver/dns_query.c
@@ -54,6 +54,7 @@
* @options: Request options (or NULL if no options)
* @_result: Where to place the returned data (or NULL)
* @_expiry: Where to store the result expiry time (or NULL)
+ * @invalidate: Always invalidate the key after use
*
* The data will be returned in the pointer at *result, if provided, and the
* caller is responsible for freeing it.
@@ -69,7 +70,8 @@
* Returns the size of the result on success, -ve error code otherwise.
*/
int dns_query(const char *type, const char *name, size_t namelen,
- const char *options, char **_result, time64_t *_expiry)
+ const char *options, char **_result, time64_t *_expiry,
+ bool invalidate)
{
struct key *rkey;
struct user_key_payload *upayload;
@@ -157,6 +159,8 @@ int dns_query(const char *type, const char *name, size_t namelen,
ret = len;
put:
up_read(&rkey->sem);
+ if (invalidate)
+ key_invalidate(rkey);
key_put(rkey);
out:
kleave(" = %d", ret);