diff options
| -rw-r--r-- | block/as-iosched.c | 71 | ||||
| -rw-r--r-- | block/cfq-iosched.c | 93 | ||||
| -rw-r--r-- | block/deadline-iosched.c | 64 | ||||
| -rw-r--r-- | block/elevator.c | 7 | ||||
| -rw-r--r-- | include/linux/elevator.h | 14 |
5 files changed, 74 insertions, 175 deletions
diff --git a/block/as-iosched.c b/block/as-iosched.c index 3fb60eb..296708c 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -1725,7 +1725,7 @@ as_var_store(unsigned long *var, const char *page, size_t count) return count; } -static ssize_t as_est_show(elevator_t *e, char *page) +static ssize_t est_time_show(elevator_t *e, char *page) { struct as_data *ad = e->elevator_data; int pos = 0; @@ -1748,11 +1748,11 @@ static ssize_t __FUNC(elevator_t *e, char *page) \ struct as_data *ad = e->elevator_data; \ return as_var_show(jiffies_to_msecs((__VAR)), (page)); \ } -SHOW_FUNCTION(as_readexpire_show, ad->fifo_expire[REQ_SYNC]); -SHOW_FUNCTION(as_writeexpire_show, ad->fifo_expire[REQ_ASYNC]); -SHOW_FUNCTION(as_anticexpire_show, ad->antic_expire); -SHOW_FUNCTION(as_read_batchexpire_show, ad->batch_expire[REQ_SYNC]); -SHOW_FUNCTION(as_write_batchexpire_show, ad->batch_expire[REQ_ASYNC]); +SHOW_FUNCTION(as_read_expire_show, ad->fifo_expire[REQ_SYNC]); +SHOW_FUNCTION(as_write_expire_show, ad->fifo_expire[REQ_ASYNC]); +SHOW_FUNCTION(as_antic_expire_show, ad->antic_expire); +SHOW_FUNCTION(as_read_batch_expire_show, ad->batch_expire[REQ_SYNC]); +SHOW_FUNCTION(as_write_batch_expire_show, ad->batch_expire[REQ_ASYNC]); #undef SHOW_FUNCTION #define STORE_FUNCTION(__FUNC, __PTR, MIN, MAX) \ @@ -1767,53 +1767,26 @@ static ssize_t __FUNC(elevator_t *e, const char *page, size_t count) \ *(__PTR) = msecs_to_jiffies(*(__PTR)); \ return ret; \ } -STORE_FUNCTION(as_readexpire_store, &ad->fifo_expire[REQ_SYNC], 0, INT_MAX); -STORE_FUNCTION(as_writeexpire_store, &ad->fifo_expire[REQ_ASYNC], 0, INT_MAX); -STORE_FUNCTION(as_anticexpire_store, &ad->antic_expire, 0, INT_MAX); -STORE_FUNCTION(as_read_batchexpire_store, +STORE_FUNCTION(as_read_expire_store, &ad->fifo_expire[REQ_SYNC], 0, INT_MAX); +STORE_FUNCTION(as_write_expire_store, &ad->fifo_expire[REQ_ASYNC], 0, INT_MAX); +STORE_FUNCTION(as_antic_expire_store, &ad->antic_expire, 0, INT_MAX); +STORE_FUNCTION(as_read_batch_expire_store, &ad->batch_expire[REQ_SYNC], 0, INT_MAX); -STORE_FUNCTION(as_write_batchexpire_store, +STORE_FUNCTION(as_write_batch_expire_store, &ad->batch_expire[REQ_ASYNC], 0, INT_MAX); #undef STORE_FUNCTION -static struct elv_fs_entry as_est_entry = { - .attr = {.name = "est_time", .mode = S_IRUGO }, - .show = as_est_show, -}; -static struct elv_fs_entry as_readexpire_entry = { - .attr = {.name = "read_expire", .mode = S_IRUGO | S_IWUSR }, - .show = as_readexpire_show, - .store = as_readexpire_store, -}; -static struct elv_fs_entry as_writeexpire_entry = { - .attr = {.name = "write_expire", .mode = S_IRUGO | S_IWUSR }, - .show = as_writeexpire_show, - .store = as_writeexpire_store, -}; -static struct elv_fs_entry as_anticexpire_entry = { - .attr = {.name = "antic_expire", .mode = S_IRUGO | S_IWUSR }, - .show = as_anticexpire_show, - .store = as_anticexpire_store, -}; -static struct elv_fs_entry as_read_batchexpire_entry = { - .attr = {.name = "read_batch_expire", .mode = S_IRUGO | S_IWUSR }, - .show = as_read_batchexpire_show, - .store = as_read_batchexpire_store, -}; -static struct elv_fs_entry as_write_batchexpire_entry = { - .attr = {.name = "write_batch_expire", .mode = S_IRUGO | S_IWUSR }, - .show = as_write_batchexpire_show, - .store = as_write_batchexpire_store, -}; - -static struct attribute *as_attrs[] = { - &as_est_entry.attr, - &as_readexpire_entry.attr, - &as_writeexpire_entry.attr, - &as_anticexpire_entry.attr, - &as_read_batchexpire_entry.attr, - &as_write_batchexpire_entry.attr, - NULL, +#define AS_ATTR(name) \ + __ATTR(name, S_IRUGO|S_IWUSR, as_##name##_show, as_##name##_store) + +static struct elv_fs_entry as_attrs[] = { + __ATTR_RO(est_time), + AS_ATTR(read_expire), + AS_ATTR(write_expire), + AS_ATTR(antic_expire), + AS_ATTR(read_batch_expire), + AS_ATTR(write_batch_expire), + __ATTR_NULL }; static struct elevator_type iosched_as = { diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 6dc156e..c4a0d5d 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -2304,8 +2304,8 @@ SHOW_FUNCTION(cfq_quantum_show, cfqd->cfq_quantum, 0); SHOW_FUNCTION(cfq_queued_show, cfqd->cfq_queued, 0); SHOW_FUNCTION(cfq_fifo_expire_sync_show, cfqd->cfq_fifo_expire[1], 1); SHOW_FUNCTION(cfq_fifo_expire_async_show, cfqd->cfq_fifo_expire[0], 1); -SHOW_FUNCTION(cfq_back_max_show, cfqd->cfq_back_max, 0); -SHOW_FUNCTION(cfq_back_penalty_show, cfqd->cfq_back_penalty, 0); +SHOW_FUNCTION(cfq_back_seek_max_show, cfqd->cfq_back_max, 0); +SHOW_FUNCTION(cfq_back_seek_penalty_show, cfqd->cfq_back_penalty, 0); SHOW_FUNCTION(cfq_slice_idle_show, cfqd->cfq_slice_idle, 1); SHOW_FUNCTION(cfq_slice_sync_show, cfqd->cfq_slice[1], 1); SHOW_FUNCTION(cfq_slice_async_show, cfqd->cfq_slice[0], 1); @@ -2333,8 +2333,8 @@ STORE_FUNCTION(cfq_quantum_store, &cfqd->cfq_quantum, 1, UINT_MAX, 0); STORE_FUNCTION(cfq_queued_store, &cfqd->cfq_queued, 1, UINT_MAX, 0); STORE_FUNCTION(cfq_fifo_expire_sync_store, &cfqd->cfq_fifo_expire[1], 1, UINT_MAX, 1); STORE_FUNCTION(cfq_fifo_expire_async_store, &cfqd->cfq_fifo_expire[0], 1, UINT_MAX, 1); -STORE_FUNCTION(cfq_back_max_store, &cfqd->cfq_back_max, 0, UINT_MAX, 0); -STORE_FUNCTION(cfq_back_penalty_store, &cfqd->cfq_back_penalty, 1, UINT_MAX, 0); +STORE_FUNCTION(cfq_back_seek_max_store, &cfqd->cfq_back_max, 0, UINT_MAX, 0); +STORE_FUNCTION(cfq_back_seek_penalty_store, &cfqd->cfq_back_penalty, 1, UINT_MAX, 0); STORE_FUNCTION(cfq_slice_idle_store, &cfqd->cfq_slice_idle, 0, UINT_MAX, 1); STORE_FUNCTION(cfq_slice_sync_store, &cfqd->cfq_slice[1], 1, UINT_MAX, 1); STORE_FUNCTION(cfq_slice_async_store, &cfqd->cfq_slice[0], 1, UINT_MAX, 1); @@ -2342,75 +2342,22 @@ STORE_FUNCTION(cfq_slice_async_rq_store, &cfqd->cfq_slice_async_rq, 1, UINT_MAX, STORE_FUNCTION(cfq_max_depth_store, &cfqd->cfq_max_depth, 1, UINT_MAX, 0); #undef STORE_FUNCTION -static struct elv_fs_entry cfq_quantum_entry = { - .attr = {.name = "quantum", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_quantum_show, - .store = cfq_quantum_store, -}; -static struct elv_fs_entry cfq_queued_entry = { - .attr = {.name = "queued", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_queued_show, - .store = cfq_queued_store, -}; -static struct elv_fs_entry cfq_fifo_expire_sync_entry = { - .attr = {.name = "fifo_expire_sync", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_fifo_expire_sync_show, - .store = cfq_fifo_expire_sync_store, -}; -static struct elv_fs_entry cfq_fifo_expire_async_entry = { - .attr = {.name = "fifo_expire_async", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_fifo_expire_async_show, - .store = cfq_fifo_expire_async_store, -}; -static struct elv_fs_entry cfq_back_max_entry = { - .attr = {.name = "back_seek_max", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_back_max_show, - .store = cfq_back_max_store, -}; -static struct elv_fs_entry cfq_back_penalty_entry = { - .attr = {.name = "back_seek_penalty", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_back_penalty_show, - .store = cfq_back_penalty_store, -}; -static struct elv_fs_entry cfq_slice_sync_entry = { - .attr = {.name = "slice_sync", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_slice_sync_show, - .store = cfq_slice_sync_store, -}; -static struct elv_fs_entry cfq_slice_async_entry = { - .attr = {.name = "slice_async", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_slice_async_show, - .store = cfq_slice_async_store, -}; -static struct elv_fs_entry cfq_slice_async_rq_entry = { - .attr = {.name = "slice_async_rq", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_slice_async_rq_show, - .store = cfq_slice_async_rq_store, -}; -static struct elv_fs_entry cfq_slice_idle_entry = { - .attr = {.name = "slice_idle", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_slice_idle_show, - .store = cfq_slice_idle_store, -}; -static struct elv_fs_entry cfq_max_depth_entry = { - .attr = {.name = "max_depth", .mode = S_IRUGO | S_IWUSR }, - .show = cfq_max_depth_show, - .store = cfq_max_depth_store, -}; - -static struct attribute *cfq_attrs[] = { - &cfq_quantum_entry.attr, - &cfq_queued_entry.attr, - &cfq_fifo_expire_sync_entry.attr, - &cfq_fifo_expire_async_entry.attr, - &cfq_back_max_entry.attr, - &cfq_back_penalty_entry.attr, - &cfq_slice_sync_entry.attr, - &cfq_slice_async_entry.attr, - &cfq_slice_async_rq_entry.attr, - &cfq_slice_idle_entry.attr, - &cfq_max_depth_entry.attr, - NULL, +#define CFQ_ATTR(name) \ + __ATTR(name, S_IRUGO|S_IWUSR, cfq_##name##_show, cfq_##name##_store) + +static struct elv_fs_entry cfq_attrs[] = { + CFQ_ATTR(quantum), + CFQ_ATTR(queued), + CFQ_ATTR(fifo_expire_sync), + CFQ_ATTR(fifo_expire_async), + CFQ_ATTR(back_seek_max), + CFQ_ATTR(back_seek_penalty), + CFQ_ATTR(slice_sync), + CFQ_ATTR(slice_async), + CFQ_ATTR(slice_async_rq), + CFQ_ATTR(slice_idle), + CFQ_ATTR(max_depth), + __ATTR_NULL }; static struct elevator_type iosched_cfq = { diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index a3e3ff1..399fa1e 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -719,11 +719,11 @@ static ssize_t __FUNC(elevator_t *e, char *page) \ __data = jiffies_to_msecs(__data); \ return deadline_var_show(__data, (page)); \ } -SHOW_FUNCTION(deadline_readexpire_show, dd->fifo_expire[READ], 1); -SHOW_FUNCTION(deadline_writeexpire_show, dd->fifo_expire[WRITE], 1); -SHOW_FUNCTION(deadline_writesstarved_show, dd->writes_starved, 0); -SHOW_FUNCTION(deadline_frontmerges_show, dd->front_merges, 0); -SHOW_FUNCTION(deadline_fifobatch_show, dd->fifo_batch, 0); +SHOW_FUNCTION(deadline_read_expire_show, dd->fifo_expire[READ], 1); +SHOW_FUNCTION(deadline_write_expire_show, dd->fifo_expire[WRITE], 1); +SHOW_FUNCTION(deadline_writes_starved_show, dd->writes_starved, 0); +SHOW_FUNCTION(deadline_front_merges_show, dd->front_merges, 0); +SHOW_FUNCTION(deadline_fifo_batch_show, dd->fifo_batch, 0); #undef SHOW_FUNCTION #define STORE_FUNCTION(__FUNC, __PTR, MIN, MAX, __CONV) \ @@ -742,46 +742,24 @@ static ssize_t __FUNC(elevator_t *e, const char *page, size_t count) \ *(__PTR) = __data; \ return ret; \ } -STORE_FUNCTION(deadline_readexpire_store, &dd->fifo_expire[READ], 0, INT_MAX, 1); -STORE_FUNCTION(deadline_writeexpire_store, &dd->fifo_expire[WRITE], 0, INT_MAX, 1); -STORE_FUNCTION(deadline_writesstarved_store, &dd->writes_starved, INT_MIN, INT_MAX, 0); -STORE_FUNCTION(deadline_frontmerges_store, &dd->front_merges, 0, 1, 0); -STORE_FUNCTION(deadline_fifobatch_store, &dd->fifo_batch, 0, INT_MAX, 0); +STORE_FUNCTION(deadline_read_expire_store, &dd->fifo_expire[READ], 0, INT_MAX, 1); +STORE_FUNCTION(deadline_write_expire_store, &dd->fifo_expire[WRITE], 0, INT_MAX, 1); +STORE_FUNCTION(deadline_writes_starved_store, &dd->writes_starved, INT_MIN, INT_MAX, 0); +STORE_FUNCTION(deadline_front_merges_store, &dd->front_merges, 0, 1, 0); +STORE_FUNCTION(deadline_fifo_batch_store, &dd->fifo_batch, 0, INT_MAX, 0); #undef STORE_FUNCTION -static struct elv_fs_entry deadline_readexpire_entry = { - .attr = {.name = "read_expire", .mode = S_IRUGO | S_IWUSR }, - .show = deadline_readexpire_show, - .store = deadline_readexpire_store, -}; -static struct elv_fs_entry deadline_writeexpire_entry = { - .attr = {.name = "write_expire", .mode = S_IRUGO | S_IWUSR }, - .show = deadline_writeexpire_show, - .store = deadline_writeexpire_store, -}; -static struct elv_fs_entry deadline_writesstarved_entry = { - .attr = {.name = "writes_starved", .mode = S_IRUGO | S_IWUSR }, - .show = deadline_writesstarved_show, - .store = deadline_writesstarved_store, -}; -static struct elv_fs_entry deadline_frontmerges_entry = { - .attr = {.name = "front_merges", .mode = S_IRUGO | S_IWUSR }, - .show = deadline_frontmerges_show, - .store = deadline_frontmerges_store, -}; -static struct elv_fs_entry deadline_fifobatch_entry = { - .attr = {.name = "fifo_batch", .mode = S_IRUGO | S_IWUSR }, - .show = deadline_fifobatch_show, - .store = deadline_fifobatch_store, -}; - -static struct attribute *deadline_attrs[] = { - &deadline_readexpire_entry.attr, - &deadline_writeexpire_entry.attr, - &deadline_writesstarved_entry.attr, - &deadline_frontmerges_entry.attr, - &deadline_fifobatch_entry.attr, - NULL, +#define DD_ATTR(name) \ + __ATTR(name, S_IRUGO|S_IWUSR, deadline_##name##_show, \ + deadline_##name##_store) + +static struct elv_fs_entry deadline_attrs[] = { + DD_ATTR(read_expire), + DD_ATTR(write_expire), + DD_ATTR(writes_starved), + DD_ATTR(front_merges), + DD_ATTR(fifo_batch), + __ATTR_NULL }; static struct elevator_type iosched_deadline = { diff --git a/block/elevator.c b/block/elevator.c index 0d2db53..db3d0d8 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -699,11 +699,12 @@ int elv_register_queue(struct request_queue *q) error = kobject_add(&e->kobj); if (!error) { - struct attribute **attr = e->elevator_type->elevator_attrs; + struct elv_fs_entry *attr = e->elevator_type->elevator_attrs; if (attr) { - while (*attr) { - if (sysfs_create_file(&e->kobj,*attr++)) + while (attr->attr.name) { + if (sysfs_create_file(&e->kobj, &attr->attr)) break; + attr++; } } kobject_uevent(&e->kobj, KOBJ_ADD); diff --git a/include/linux/elevator.h b/include/linux/elevator.h index 4d0a80f..ad133fc 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -53,6 +53,12 @@ struct elevator_ops #define ELV_NAME_MAX (16) +struct elv_fs_entry { + struct attribute attr; + ssize_t (*show)(elevator_t *, char *); + ssize_t (*store)(elevator_t *, const char *, size_t); +}; + /* * identifies an elevator type, such as AS or deadline */ @@ -61,7 +67,7 @@ struct elevator_type struct list_head list; struct elevator_ops ops; struct elevator_type *elevator_type; - struct attribute **elevator_attrs; + struct elv_fs_entry *elevator_attrs; char elevator_name[ELV_NAME_MAX]; struct module *elevator_owner; }; @@ -142,12 +148,6 @@ enum { ELV_MQUEUE_MUST, }; -struct elv_fs_entry { - struct attribute attr; - ssize_t (*show)(elevator_t *, char *); - ssize_t (*store)(elevator_t *, const char *, size_t); -}; - #define rq_end_sector(rq) ((rq)->sector + (rq)->nr_sectors) #endif |
