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
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef BLKTRACE_H
|
|
#define BLKTRACE_H
|
|
|
|
#include <linux/blk-mq.h>
|
|
#include <linux/relay.h>
|
|
#include <linux/compat.h>
|
|
#include <uapi/linux/blktrace_api.h>
|
|
#include <linux/list.h>
|
|
#include <linux/blk_types.h>
|
|
|
|
#if defined(CONFIG_BLK_DEV_IO_TRACE)
|
|
|
|
#include <linux/sysfs.h>
|
|
|
|
struct blk_trace {
|
|
int version;
|
|
int trace_state;
|
|
struct rchan *rchan;
|
|
unsigned long __percpu *sequence;
|
|
unsigned char __percpu *msg_data;
|
|
u64 act_mask;
|
|
u64 start_lba;
|
|
u64 end_lba;
|
|
u32 pid;
|
|
u32 dev;
|
|
struct dentry *dir;
|
|
struct list_head running_list;
|
|
atomic_t dropped;
|
|
};
|
|
|
|
extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
|
|
extern void blk_trace_shutdown(struct request_queue *);
|
|
__printf(3, 4) void __blk_trace_note_message(struct blk_trace *bt,
|
|
struct cgroup_subsys_state *css, const char *fmt, ...);
|
|
|
|
/**
|
|
* blk_add_trace_msg - Add a (simple) message to the blktrace stream
|
|
* @q: queue the io is for
|
|
* @fmt: format to print message in
|
|
* args... Variable argument list for format
|
|
*
|
|
* Description:
|
|
* Records a (simple) message onto the blktrace stream.
|
|
*
|
|
* NOTE: BLK_TN_MAX_MSG characters are output at most.
|
|
* NOTE: Can not use 'static inline' due to presence of var args...
|
|
*
|
|
**/
|
|
#define blk_add_cgroup_trace_msg(q, css, fmt, ...) \
|
|
do { \
|
|
struct blk_trace *bt; \
|
|
\
|
|
rcu_read_lock(); \
|
|
bt = rcu_dereference((q)->blk_trace); \
|
|
if (unlikely(bt)) \
|
|
__blk_trace_note_message(bt, css, fmt, ##__VA_ARGS__);\
|
|
rcu_read_unlock(); \
|
|
} while (0)
|
|
#define blk_add_trace_msg(q, fmt, ...) \
|
|
blk_add_cgroup_trace_msg(q, NULL, fmt, ##__VA_ARGS__)
|
|
#define BLK_TN_MAX_MSG 128
|
|
|
|
static inline bool blk_trace_note_message_enabled(struct request_queue *q)
|
|
{
|
|
struct blk_trace *bt;
|
|
bool ret;
|
|
|
|
rcu_read_lock();
|
|
bt = rcu_dereference(q->blk_trace);
|
|
ret = bt && (bt->act_mask & BLK_TC_NOTIFY);
|
|
rcu_read_unlock();
|
|
return ret;
|
|
}
|
|
|
|
extern void blk_add_driver_data(struct request *rq, void *data, size_t len);
|
|
extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
|
|
struct block_device *bdev,
|
|
char __user *arg);
|
|
extern int blk_trace_startstop(struct request_queue *q, int start);
|
|
extern int blk_trace_remove(struct request_queue *q);
|
|
|
|
#else /* !CONFIG_BLK_DEV_IO_TRACE */
|
|
# define blk_trace_ioctl(bdev, cmd, arg) (-ENOTTY)
|
|
# define blk_trace_shutdown(q) do { } while (0)
|
|
# define blk_add_driver_data(rq, data, len) do {} while (0)
|
|
# define blk_trace_setup(q, name, dev, bdev, arg) (-ENOTTY)
|
|
# define blk_trace_startstop(q, start) (-ENOTTY)
|
|
# define blk_add_trace_msg(q, fmt, ...) do { } while (0)
|
|
# define blk_add_cgroup_trace_msg(q, cg, fmt, ...) do { } while (0)
|
|
# define blk_trace_note_message_enabled(q) (false)
|
|
|
|
static inline int blk_trace_remove(struct request_queue *q)
|
|
{
|
|
return -ENOTTY;
|
|
}
|
|
#endif /* CONFIG_BLK_DEV_IO_TRACE */
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
|
|
struct compat_blk_user_trace_setup {
|
|
char name[BLKTRACE_BDEV_SIZE];
|
|
u16 act_mask;
|
|
u32 buf_size;
|
|
u32 buf_nr;
|
|
compat_u64 start_lba;
|
|
compat_u64 end_lba;
|
|
u32 pid;
|
|
};
|
|
#define BLKTRACESETUP32 _IOWR(0x12, 115, struct compat_blk_user_trace_setup)
|
|
|
|
#endif
|
|
|
|
void blk_fill_rwbs(char *rwbs, blk_opf_t opf);
|
|
|
|
static inline sector_t blk_rq_trace_sector(struct request *rq)
|
|
{
|
|
/*
|
|
* Tracing should ignore starting sector for passthrough requests and
|
|
* requests where starting sector didn't get set.
|
|
*/
|
|
if (blk_rq_is_passthrough(rq) || blk_rq_pos(rq) == (sector_t)-1)
|
|
return 0;
|
|
return blk_rq_pos(rq);
|
|
}
|
|
|
|
static inline unsigned int blk_rq_trace_nr_sectors(struct request *rq)
|
|
{
|
|
return blk_rq_is_passthrough(rq) ? 0 : blk_rq_sectors(rq);
|
|
}
|
|
|
|
#endif
|