#ifndef _LUSTRE_SCRUB_H
# define _LUSTRE_SCRUB_H
+#include <libcfs/linux/linux-uuid.h>
#include <dt_object.h>
#include <lustre_net.h>
#define SCRUB_CHECKPOINT_INTERVAL 60
#define SCRUB_WINDOW_SIZE 1024
-#define HALF_SEC msecs_to_jiffies(MSEC_PER_SEC >> 1)
-
enum scrub_next_status {
/* exit current loop and process next group */
SCRUB_NEXT_BREAK = 1,
struct scrub_file {
/* 128-bit uuid for volume. */
- __u8 sf_uuid[16];
+ uuid_t sf_uuid;
/* See 'enum scrub_flags'. */
__u64 sf_flags;
__u16 sf_param;
/* The time for the last OI scrub completed. */
- __u64 sf_time_last_complete;
+ time64_t sf_time_last_complete;
- /* The time for the latest OI scrub ran. */
- __u64 sf_time_latest_start;
+ /* The ttime for the latest OI scrub ran. */
+ time64_t sf_time_latest_start;
/* The time for the last OI scrub checkpoint. */
- __u64 sf_time_last_checkpoint;
+ time64_t sf_time_last_checkpoint;
/* The position for the latest OI scrub started from. */
__u64 sf_pos_latest_start;
/* How many IGIF objects. */
__u64 sf_items_igif;
- /* How long the OI scrub has run. */
- __u32 sf_run_time;
+ /* How long the OI scrub has run in seconds. Do NOT change
+ * to time64_t since this breaks backwards compatibility.
+ * It shouldn't take more than 136 years to complete :-)
+ */
+ s32 sf_run_time;
/* How many completed OI scrub ran on the device. */
__u32 sf_success_count;
/* Object for the scrub file. */
struct dt_object *os_obj;
- struct ptlrpc_thread os_thread;
+ struct task_struct *os_task;
struct list_head os_inconsistent_items;
+ /* once inconsistent mapping can't be fixed, put into this list */
+ struct list_head os_stale_items;
/* write lock for scrub prep/update/post/checkpoint,
* read lock for scrub dump. */
const char *os_name;
- /* The time for last checkpoint, jiffies */
- cfs_time_t os_time_last_checkpoint;
+ /* The time for last checkpoint, seconds */
+ time64_t os_time_last_checkpoint;
+
+ /* The time for next checkpoint, seconds */
+ time64_t os_time_next_checkpoint;
- /* The time for next checkpoint, jiffies */
- cfs_time_t os_time_next_checkpoint;
+ /* How long to wait to start scrubbing */
+ time64_t os_auto_scrub_interval;
/* How many objects have been checked since last checkpoint. */
__u64 os_new_checked;
__u64 os_pos_current;
__u32 os_start_flags;
+ /* Some of these bits can be set by different threads so
+ * all updates must be protected by ->os_lock to avoid
+ * racing read-modify-write cycles causing corruption.
+ */
unsigned int os_in_prior:1, /* process inconsistent item
* found by RPC prior */
os_waiting:1, /* Waiting for scan window. */
os_convert_igif:1,
os_partial_scan:1,
os_in_join:1,
- os_full_scrub:1;
+ os_running:1, /* scrub thread is running */
+ os_full_scrub:1,
+ os_has_ml_file:1;
};
#define INDEX_BACKUP_MAGIC_V1 0x1E41F208
char liru_name[0];
};
-void scrub_file_init(struct lustre_scrub *scrub, __u8 *uuid);
-void scrub_file_reset(struct lustre_scrub *scrub, __u8 *uuid, __u64 flags);
+void scrub_file_init(struct lustre_scrub *scrub, uuid_t uuid);
+void scrub_file_reset(struct lustre_scrub *scrub, uuid_t uuid, u64 flags);
int scrub_file_load(const struct lu_env *env, struct lustre_scrub *scrub);
int scrub_file_store(const struct lu_env *env, struct lustre_scrub *scrub);
+bool scrub_needs_check(struct lustre_scrub *scrub, const struct lu_fid *fid,
+ u64 index);
int scrub_checkpoint(const struct lu_env *env, struct lustre_scrub *scrub);
+int scrub_thread_prep(const struct lu_env *env, struct lustre_scrub *scrub,
+ uuid_t uuid, u64 start);
+int scrub_thread_post(const struct lu_env *env, struct lustre_scrub *scrub,
+ int result);
int scrub_start(int (*threadfn)(void *data), struct lustre_scrub *scrub,
void *data, __u32 flags);
void scrub_stop(struct lustre_scrub *scrub);