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-rw-r--r--include/linux/cgroup_subsys.h6
-rw-r--r--include/linux/drbd.h5
-rw-r--r--include/linux/drbd_limits.h11
-rw-r--r--include/linux/idr.h10
-rw-r--r--include/linux/lru_cache.h1
-rw-r--r--include/linux/rwsem.h10
-rw-r--r--include/linux/sched.h4
-rw-r--r--include/trace/events/bcache.h271
8 files changed, 306 insertions, 12 deletions
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index f204a7a9cf3..6e7ec64b69a 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -78,3 +78,9 @@ SUBSYS(hugetlb)
#endif
/* */
+
+#ifdef CONFIG_CGROUP_BCACHE
+SUBSYS(bcache)
+#endif
+
+/* */
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index 0c5a18ec322..1b4d4ee1168 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -52,7 +52,7 @@
#endif
extern const char *drbd_buildtag(void);
-#define REL_VERSION "8.4.2"
+#define REL_VERSION "8.4.3"
#define API_VERSION 1
#define PRO_VERSION_MIN 86
#define PRO_VERSION_MAX 101
@@ -319,7 +319,8 @@ enum drbd_state_rv {
SS_IN_TRANSIENT_STATE = -18, /* Retry after the next state change */
SS_CONCURRENT_ST_CHG = -19, /* Concurrent cluster side state change! */
SS_O_VOL_PEER_PRI = -20,
- SS_AFTER_LAST_ERROR = -21, /* Keep this at bottom */
+ SS_OUTDATE_WO_CONN = -21,
+ SS_AFTER_LAST_ERROR = -22, /* Keep this at bottom */
};
/* from drbd_strings.c */
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h
index 1fa19c5f5e6..1fedf2b17cc 100644
--- a/include/linux/drbd_limits.h
+++ b/include/linux/drbd_limits.h
@@ -126,13 +126,12 @@
#define DRBD_RESYNC_RATE_DEF 250
#define DRBD_RESYNC_RATE_SCALE 'k' /* kilobytes */
- /* less than 7 would hit performance unnecessarily.
- * 919 slots context information per transaction,
- * 32k activity log, 4k transaction size,
- * one transaction in flight:
- * 919 * 7 = 6433 */
+ /* less than 7 would hit performance unnecessarily. */
#define DRBD_AL_EXTENTS_MIN 7
-#define DRBD_AL_EXTENTS_MAX 6433
+ /* we use u16 as "slot number", (u16)~0 is "FREE".
+ * If you use >= 292 kB on-disk ring buffer,
+ * this is the maximum you can use: */
+#define DRBD_AL_EXTENTS_MAX 0xfffe
#define DRBD_AL_EXTENTS_DEF 1237
#define DRBD_AL_EXTENTS_SCALE '1'
diff --git a/include/linux/idr.h b/include/linux/idr.h
index a470ac3ef49..871a213a847 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -124,11 +124,13 @@ static inline void *idr_find(struct idr *idr, int id)
* @idp: idr handle
* @entry: the type * to use as cursor
* @id: id entry's key
+ *
+ * @entry and @id do not need to be initialized before the loop, and
+ * after normal terminatinon @entry is left with the value NULL. This
+ * is convenient for a "not found" value.
*/
-#define idr_for_each_entry(idp, entry, id) \
- for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \
- entry != NULL; \
- ++id, entry = (typeof(entry))idr_get_next((idp), &(id)))
+#define idr_for_each_entry(idp, entry, id) \
+ for (id = 0; ((entry) = idr_get_next(idp, &(id))) != NULL; ++id)
/*
* Don't use the following functions. These exist only to suppress
diff --git a/include/linux/lru_cache.h b/include/linux/lru_cache.h
index 4019013c659..46262284de4 100644
--- a/include/linux/lru_cache.h
+++ b/include/linux/lru_cache.h
@@ -256,6 +256,7 @@ extern void lc_destroy(struct lru_cache *lc);
extern void lc_set(struct lru_cache *lc, unsigned int enr, int index);
extern void lc_del(struct lru_cache *lc, struct lc_element *element);
+extern struct lc_element *lc_get_cumulative(struct lru_cache *lc, unsigned int enr);
extern struct lc_element *lc_try_get(struct lru_cache *lc, unsigned int enr);
extern struct lc_element *lc_find(struct lru_cache *lc, unsigned int enr);
extern struct lc_element *lc_get(struct lru_cache *lc, unsigned int enr);
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 8da67d625e1..0616ffe4570 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -133,10 +133,20 @@ do { \
_down_write_nest_lock(sem, &(nest_lock)->dep_map); \
} while (0);
+/*
+ * Take/release a lock when not the owner will release it.
+ *
+ * [ This API should be avoided as much as possible - the
+ * proper abstraction for this case is completions. ]
+ */
+extern void down_read_non_owner(struct rw_semaphore *sem);
+extern void up_read_non_owner(struct rw_semaphore *sem);
#else
# define down_read_nested(sem, subclass) down_read(sem)
# define down_write_nest_lock(sem, nest_lock) down_write(sem)
# define down_write_nested(sem, subclass) down_write(sem)
+# define down_read_non_owner(sem) down_read(sem)
+# define up_read_non_owner(sem) up_read(sem)
#endif
#endif /* _LINUX_RWSEM_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 022c085ac3c..caa8f4d0186 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1411,6 +1411,10 @@ struct task_struct {
#ifdef CONFIG_UPROBES
struct uprobe_task *utask;
#endif
+#if defined(CONFIG_BCACHE) || defined(CONFIG_BCACHE_MODULE)
+ unsigned int sequential_io;
+ unsigned int sequential_io_avg;
+#endif
};
/* Future-safe accessor for struct task_struct's cpus_allowed. */
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
new file mode 100644
index 00000000000..3cc5a0b278c
--- /dev/null
+++ b/include/trace/events/bcache.h
@@ -0,0 +1,271 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM bcache
+
+#if !defined(_TRACE_BCACHE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_BCACHE_H
+
+#include <linux/tracepoint.h>
+
+struct search;
+
+DECLARE_EVENT_CLASS(bcache_request,
+
+ TP_PROTO(struct search *s, struct bio *bio),
+
+ TP_ARGS(s, bio),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev )
+ __field(unsigned int, orig_major )
+ __field(unsigned int, orig_minor )
+ __field(sector_t, sector )
+ __field(dev_t, orig_sector )
+ __field(unsigned int, nr_sector )
+ __array(char, rwbs, 6 )
+ __array(char, comm, TASK_COMM_LEN )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = bio->bi_bdev->bd_dev;
+ __entry->orig_major = s->d->disk->major;
+ __entry->orig_minor = s->d->disk->first_minor;
+ __entry->sector = bio->bi_sector;
+ __entry->orig_sector = bio->bi_sector - 16;
+ __entry->nr_sector = bio->bi_size >> 9;
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
+ ),
+
+ TP_printk("%d,%d %s %llu + %u [%s] (from %d,%d @ %llu)",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->rwbs,
+ (unsigned long long)__entry->sector,
+ __entry->nr_sector, __entry->comm,
+ __entry->orig_major, __entry->orig_minor,
+ (unsigned long long)__entry->orig_sector)
+);
+
+DEFINE_EVENT(bcache_request, bcache_request_start,
+
+ TP_PROTO(struct search *s, struct bio *bio),
+
+ TP_ARGS(s, bio)
+);
+
+DEFINE_EVENT(bcache_request, bcache_request_end,
+
+ TP_PROTO(struct search *s, struct bio *bio),
+
+ TP_ARGS(s, bio)
+);
+
+DECLARE_EVENT_CLASS(bcache_bio,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev )
+ __field(sector_t, sector )
+ __field(unsigned int, nr_sector )
+ __array(char, rwbs, 6 )
+ __array(char, comm, TASK_COMM_LEN )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = bio->bi_bdev->bd_dev;
+ __entry->sector = bio->bi_sector;
+ __entry->nr_sector = bio->bi_size >> 9;
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
+ ),
+
+ TP_printk("%d,%d %s %llu + %u [%s]",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->rwbs,
+ (unsigned long long)__entry->sector,
+ __entry->nr_sector, __entry->comm)
+);
+
+
+DEFINE_EVENT(bcache_bio, bcache_passthrough,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_cache_hit,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_cache_miss,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_read_retry,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_writethrough,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_writeback,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_write_skip,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_btree_read,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_btree_write,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_write_dirty,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_read_dirty,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_write_moving,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_read_moving,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DEFINE_EVENT(bcache_bio, bcache_journal_write,
+
+ TP_PROTO(struct bio *bio),
+
+ TP_ARGS(bio)
+);
+
+DECLARE_EVENT_CLASS(bcache_cache_bio,
+
+ TP_PROTO(struct bio *bio,
+ sector_t orig_sector,
+ struct block_device* orig_bdev),
+
+ TP_ARGS(bio, orig_sector, orig_bdev),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev )
+ __field(dev_t, orig_dev )
+ __field(sector_t, sector )
+ __field(sector_t, orig_sector )
+ __field(unsigned int, nr_sector )
+ __array(char, rwbs, 6 )
+ __array(char, comm, TASK_COMM_LEN )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = bio->bi_bdev->bd_dev;
+ __entry->orig_dev = orig_bdev->bd_dev;
+ __entry->sector = bio->bi_sector;
+ __entry->orig_sector = orig_sector;
+ __entry->nr_sector = bio->bi_size >> 9;
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
+ ),
+
+ TP_printk("%d,%d %s %llu + %u [%s] (from %d,%d %llu)",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->rwbs,
+ (unsigned long long)__entry->sector,
+ __entry->nr_sector, __entry->comm,
+ MAJOR(__entry->orig_dev), MINOR(__entry->orig_dev),
+ (unsigned long long)__entry->orig_sector)
+);
+
+DEFINE_EVENT(bcache_cache_bio, bcache_cache_insert,
+
+ TP_PROTO(struct bio *bio,
+ sector_t orig_sector,
+ struct block_device *orig_bdev),
+
+ TP_ARGS(bio, orig_sector, orig_bdev)
+);
+
+DECLARE_EVENT_CLASS(bcache_gc,
+
+ TP_PROTO(uint8_t *uuid),
+
+ TP_ARGS(uuid),
+
+ TP_STRUCT__entry(
+ __field(uint8_t *, uuid)
+ ),
+
+ TP_fast_assign(
+ __entry->uuid = uuid;
+ ),
+
+ TP_printk("%pU", __entry->uuid)
+);
+
+
+DEFINE_EVENT(bcache_gc, bcache_gc_start,
+
+ TP_PROTO(uint8_t *uuid),
+
+ TP_ARGS(uuid)
+);
+
+DEFINE_EVENT(bcache_gc, bcache_gc_end,
+
+ TP_PROTO(uint8_t *uuid),
+
+ TP_ARGS(uuid)
+);
+
+#endif /* _TRACE_BCACHE_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-28 23:45:22 +0000