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authorDavid Howells <dhowells@redhat.com>2019-05-03 20:26:55 +0300
committerDavid Howells <dhowells@redhat.com>2019-05-15 19:35:54 +0300
commitd0660f0b3b7d1760d1ab60ec8e9d0de52e885207 (patch)
tree9ab40b7b55492fbaeede2311afb643c5cadf2b75 /fs/cifs
parentca1cbbdce92bc2bfdc17e4f70ad41f6e6af2d03f (diff)
downloadlinux-d0660f0b3b7d1760d1ab60ec8e9d0de52e885207.tar.xz
dns_resolver: Allow used keys to be invalidated
Allow used DNS resolver keys to be invalidated after use if the caller is doing its own caching of the results. This reduces the amount of resources required. Fix AFS to invalidate DNS results to kill off permanent failure records that get lodged in the resolver keyring and prevent future lookups from happening. Fixes: 0a5143f2f89c ("afs: Implement VL server rotation") Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/dns_resolve.c2
1 files changed, 1 insertions, 1 deletions
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);