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| author |   David Howells <dhowells@redhat.com> | 2019-05-03 18:26:55 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2019-05-15 17:35:54 +0100 |
| commit | d0660f0b3b7d1760d1ab60ec8e9d0de52e885207 (patch) | |
| tree | 9ab40b7b55492fbaeede2311afb643c5cadf2b75 /include/linux/dns_resolver.h | |
| parent | afs: Fix afs_cell records to always have a VL server list record (diff) | |
| download | linux-dev-d0660f0b3b7d1760d1ab60ec8e9d0de52e885207.tar.xz linux-dev-d0660f0b3b7d1760d1ab60ec8e9d0de52e885207.zip | |
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 'include/linux/dns_resolver.h')
| -rw-r--r-- | include/linux/dns_resolver.h | 3 |
1 files changed, 2 insertions, 1 deletions
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 */ |