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cred: make init_cred static

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There's zero need to expose struct init_cred. The very few places that
need access can just go through init_task which is already exported.

Link: https://patch.msgid.link/20251103-work-creds-init_cred-v1-3-cb3ec8711a6a@kernel.org
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner
2025-11-03 00:12:42 +01:00
parent 4c7ceeb62d
commit 40314c2818
4 changed files with 28 additions and 29 deletions
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27
init/init_task.c
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@@ -62,6 +62,33 @@ unsigned long init_shadow_call_stack[SCS_SIZE / sizeof(long)] = {
};
#endif
/* init to 2 - one for init_task, one to ensure it is never freed */
static struct group_info init_groups = { .usage = REFCOUNT_INIT(2) };
/*
* The initial credentials for the initial task
*/
static struct cred init_cred = {
.usage = ATOMIC_INIT(4),
.uid = GLOBAL_ROOT_UID,
.gid = GLOBAL_ROOT_GID,
.suid = GLOBAL_ROOT_UID,
.sgid = GLOBAL_ROOT_GID,
.euid = GLOBAL_ROOT_UID,
.egid = GLOBAL_ROOT_GID,
.fsuid = GLOBAL_ROOT_UID,
.fsgid = GLOBAL_ROOT_GID,
.securebits = SECUREBITS_DEFAULT,
.cap_inheritable = CAP_EMPTY_SET,
.cap_permitted = CAP_FULL_SET,
.cap_effective = CAP_FULL_SET,
.cap_bset = CAP_FULL_SET,
.user = INIT_USER,
.user_ns = &init_user_ns,
.group_info = &init_groups,
.ucounts = &init_ucounts,
};
/*
* Set up the first task table, touch at your own risk!. Base=0,
* limit=0x1fffff (=2MB)