vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_RCUWAIT_H_
|
|
#define _LINUX_RCUWAIT_H_
|
|
|
|
#include <linux/rcupdate.h>
|
|
#include <linux/sched/signal.h>
|
|
#include <linux/types.h>
|
|
|
|
#define __RCUWAIT_INITIALIZER(name) \
|
|
{ .task = NULL, }
|
|
|
|
static inline void rcuwait_init(struct rcuwait *w)
|
|
{
|
|
w->task = NULL;
|
|
}
|
|
|
|
/*
|
|
* Note: this provides no serialization and, just as with waitqueues,
|
|
* requires care to estimate as to whether or not the wait is active.
|
|
*/
|
|
static inline int rcuwait_active(struct rcuwait *w)
|
|
{
|
|
return !!rcu_access_pointer(w->task);
|
|
}
|
|
|
|
extern int rcuwait_wake_up(struct rcuwait *w);
|
|
|
|
/*
|
|
* The caller is responsible for locking around rcuwait_wait_event(),
|
|
* and [prepare_to/finish]_rcuwait() such that writes to @task are
|
|
* properly serialized.
|
|
*/
|
|
|
|
static inline void prepare_to_rcuwait(struct rcuwait *w)
|
|
{
|
|
rcu_assign_pointer(w->task, current);
|
|
}
|
|
|
|
extern void finish_rcuwait(struct rcuwait *w);
|
|
|
|
#define ___rcuwait_wait_event(w, condition, state, ret, cmd) \
|
|
({ \
|
|
long __ret = ret; \
|
|
prepare_to_rcuwait(w); \
|
|
for (;;) { \
|
|
/* \
|
|
* Implicit barrier (A) pairs with (B) in \
|
|
* rcuwait_wake_up(). \
|
|
*/ \
|
|
set_current_state(state); \
|
|
if (condition) \
|
|
break; \
|
|
\
|
|
if (signal_pending_state(state, current)) { \
|
|
__ret = -EINTR; \
|
|
break; \
|
|
} \
|
|
\
|
|
cmd; \
|
|
} \
|
|
finish_rcuwait(w); \
|
|
__ret; \
|
|
})
|
|
|
|
#define rcuwait_wait_event(w, condition, state) \
|
|
___rcuwait_wait_event(w, condition, state, 0, schedule())
|
|
|
|
#define __rcuwait_wait_event_timeout(w, condition, state, timeout) \
|
|
___rcuwait_wait_event(w, ___wait_cond_timeout(condition), \
|
|
state, timeout, \
|
|
__ret = schedule_timeout(__ret))
|
|
|
|
#define rcuwait_wait_event_timeout(w, condition, state, timeout) \
|
|
({ \
|
|
long __ret = timeout; \
|
|
if (!___wait_cond_timeout(condition)) \
|
|
__ret = __rcuwait_wait_event_timeout(w, condition, \
|
|
state, timeout); \
|
|
__ret; \
|
|
})
|
|
|
|
#endif /* _LINUX_RCUWAIT_H_ */
|