From: "GONG, Ruiqi" gongruiqi1@huawei.com
Offering: HULK hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4MYYH
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Commit 328e64817efe ("kabi: reserve space for cred and user_namespace"), besides reserving space for struct cred and struct user_namespace, adds new members to enum ucount_type and struct ctl_table user_table[] as well. Use CONFIG_KABI_RESERVE to control them.
Signed-off-by: GONG, Ruiqi gongruiqi1@huawei.com --- include/linux/user_namespace.h | 2 ++ kernel/ucount.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h index f79abb16a874..6bdd18062ee0 100644 --- a/include/linux/user_namespace.h +++ b/include/linux/user_namespace.h @@ -51,6 +51,7 @@ enum ucount_type { UCOUNT_INOTIFY_INSTANCES, UCOUNT_INOTIFY_WATCHES, #endif +#ifdef CONFIG_KABI_RESERVE /* These 15 members are reserved (with extra margin) for the future * enlargement of enum ucount_type, as how RH8.1 did it. This number * should be enough, as 6 of them are very likely to be used in the near @@ -71,6 +72,7 @@ enum ucount_type { UCOUNT_KABI_RESERVE13, UCOUNT_KABI_RESERVE14, UCOUNT_KABI_RESERVE15, +#endif UCOUNT_COUNTS, };
diff --git a/kernel/ucount.c b/kernel/ucount.c index 1f5825b674d8..093b2fa76385 100644 --- a/kernel/ucount.c +++ b/kernel/ucount.c @@ -77,6 +77,7 @@ static struct ctl_table user_table[] = { UCOUNT_ENTRY("max_inotify_instances"), UCOUNT_ENTRY("max_inotify_watches"), #endif +#ifdef CONFIG_KABI_RESERVE /* These corresponds to the reservation in enum ucount_type */ { }, // UCOUNT_KABI_RESERVE1 { }, // UCOUNT_KABI_RESERVE2 @@ -93,6 +94,7 @@ static struct ctl_table user_table[] = { { }, // UCOUNT_KABI_RESERVE13 { }, // UCOUNT_KABI_RESERVE14 { }, // UCOUNT_KABI_RESERVE15 +#endif { } }; #endif /* CONFIG_SYSCTL */