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| author |   Eric W. Biederman <ebiederm@xmission.com> | 2011-11-16 23:15:31 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-04-07 16:55:51 -0700 |
| commit | c4a4d603796c727b9555867571f89483be9c565e (patch) | |
| tree | ae3b47a7b8b35c866df53cb4b4a051d49a28904a /security/keys/permission.c | |
| parent | cred: Add forward declaration of init_user_ns in all cases. (diff) | |
| download | linux-dev-c4a4d603796c727b9555867571f89483be9c565e.tar.xz linux-dev-c4a4d603796c727b9555867571f89483be9c565e.zip | |
userns: Use cred->user_ns instead of cred->user->user_ns
Optimize performance and prepare for the removal of the user_ns reference
from user_struct. Remove the slow long walk through cred->user->user_ns and
instead go straight to cred->user_ns.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to '')
| -rw-r--r-- | security/keys/permission.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/keys/permission.c b/security/keys/permission.c index c35b5229e3cd..e146cbd714bd 100644 --- a/security/keys/permission.c +++ b/security/keys/permission.c @@ -36,7 +36,7 @@ int key_task_permission(const key_ref_t key_ref, const struct cred *cred, key = key_ref_to_ptr(key_ref); - if (key->user->user_ns != cred->user->user_ns) + if (key->user->user_ns != cred->user_ns) goto use_other_perms; /* use the second 8-bits of permissions for keys the caller owns */ |