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| author | Trond Myklebust <trondmy@gmail.com> | 2018-10-01 10:41:44 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2018-10-03 11:32:59 -0400 |
| commit | 608a0ab2f54ab0e301ad76a41aad979ea0d02670 (patch) | |
| tree | 26382fa9fd57a2f549fb991c067c72257a2b2b61 /net/sunrpc/auth_gss | |
| parent | 30382d6ce593f863292cd7c026a79077c4e7280f (diff) | |
| download | linux-608a0ab2f54ab0e301ad76a41aad979ea0d02670.tar.gz linux-608a0ab2f54ab0e301ad76a41aad979ea0d02670.tar.bz2 linux-608a0ab2f54ab0e301ad76a41aad979ea0d02670.zip | |
SUNRPC: Add lockless lookup of the server's auth domain
Avoid taking the global auth_domain_lock in most lookups of the auth domain
by adding an RCU protected lookup.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc/auth_gss')
| -rw-r--r-- | net/sunrpc/auth_gss/svcauth_gss.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 860f2a1bbb67..87c71fb0f0ea 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1764,14 +1764,21 @@ out_err: } static void -svcauth_gss_domain_release(struct auth_domain *dom) +svcauth_gss_domain_release_rcu(struct rcu_head *head) { + struct auth_domain *dom = container_of(head, struct auth_domain, rcu_head); struct gss_domain *gd = container_of(dom, struct gss_domain, h); kfree(dom->name); kfree(gd); } +static void +svcauth_gss_domain_release(struct auth_domain *dom) +{ + call_rcu(&dom->rcu_head, svcauth_gss_domain_release_rcu); +} + static struct auth_ops svcauthops_gss = { .name = "rpcsec_gss", .owner = THIS_MODULE, |