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sched/coredump: introduce enum task_dumpable

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Replace the SUID_DUMP_DISABLE/USER/ROOT preprocessor constants with
enum task_dumpable.  Numeric values are preserved (kernel.suid_dumpable
sysctl and prctl(PR_SET_DUMPABLE) ABI), so this is a pure rename with
no behavioral change.

Subsequent commits relocate dumpability onto a per-task structure
where the enum type will allow stronger type-checking on the new API.

Reviewed-by: Jann Horn <jannh@google.com>
Reviewed-by: David Hildenbrand (arm) <david@kernel.org>
Link: https://patch.msgid.link/20260520-work-task_exec_state-v3-1-69f895bc1385@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Christian Brauner (Amutable)
2026-05-20 23:48:52 +02:00
committed by Christian Brauner
parent 5200f5f493
commit 4f365e7a5d
10 changed files with 27 additions and 20 deletions
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kernel/sys.c
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@@ -2568,7 +2568,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
error = get_dumpable(me->mm);
break;
case PR_SET_DUMPABLE:
if (arg2 != SUID_DUMP_DISABLE && arg2 != SUID_DUMP_USER) {
if (arg2 != TASK_DUMPABLE_OFF && arg2 != TASK_DUMPABLE_OWNER) {
error = -EINVAL;
break;
}