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7e611710ac
Add a helper function equivalent to the C's might_sleep(), which serves as a debugging aid and a potential scheduling point. Note that this function can only be used in a nonatomic context. This will be used by Rust version of read_poll_timeout(). [boqun: Use file_from_location() to get a C string instead of changing __might_sleep()] Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Link: https://lore.kernel.org/r/20250619151007.61767-3-boqun.feng@gmail.com
62 lines
1.1 KiB
C
62 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/kernel.h>
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#include <linux/sched/task.h>
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void rust_helper_might_resched(void)
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{
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might_resched();
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}
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struct task_struct *rust_helper_get_current(void)
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{
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return current;
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}
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void rust_helper_get_task_struct(struct task_struct *t)
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{
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get_task_struct(t);
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}
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void rust_helper_put_task_struct(struct task_struct *t)
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{
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put_task_struct(t);
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}
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kuid_t rust_helper_task_uid(struct task_struct *task)
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{
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return task_uid(task);
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}
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kuid_t rust_helper_task_euid(struct task_struct *task)
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{
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return task_euid(task);
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}
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#ifndef CONFIG_USER_NS
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uid_t rust_helper_from_kuid(struct user_namespace *to, kuid_t uid)
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{
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return from_kuid(to, uid);
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}
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#endif /* CONFIG_USER_NS */
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bool rust_helper_uid_eq(kuid_t left, kuid_t right)
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{
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return uid_eq(left, right);
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}
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kuid_t rust_helper_current_euid(void)
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{
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return current_euid();
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}
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struct user_namespace *rust_helper_current_user_ns(void)
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{
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return current_user_ns();
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}
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pid_t rust_helper_task_tgid_nr_ns(struct task_struct *tsk,
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struct pid_namespace *ns)
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{
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return task_tgid_nr_ns(tsk, ns);
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}
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