#define QUEUE_SYSFS_BIT_FNS(name, flag, neg) \
static ssize_t \
-queue_show_##name(struct request_queue *q, char *page) \
+queue_##name##_show(struct request_queue *q, char *page) \
{ \
int bit; \
bit = test_bit(QUEUE_FLAG_##flag, &q->queue_flags); \
return queue_var_show(neg ? !bit : bit, page); \
} \
static ssize_t \
-queue_store_##name(struct request_queue *q, const char *page, size_t count) \
+queue_##name##_store(struct request_queue *q, const char *page, size_t count) \
{ \
unsigned long val; \
ssize_t ret; \
QUEUE_SYSFS_BIT_FNS(nonrot, NONROT, 1);
QUEUE_SYSFS_BIT_FNS(random, ADD_RANDOM, 0);
QUEUE_SYSFS_BIT_FNS(iostats, IO_STAT, 0);
+QUEUE_SYSFS_BIT_FNS(stable_writes, STABLE_WRITES, 0);
#undef QUEUE_SYSFS_BIT_FNS
static ssize_t queue_zoned_show(struct request_queue *q, char *page)
return queue_var_show(blk_queue_dax(q), page);
}
-static struct queue_sysfs_entry queue_requests_entry = {
- .attr = {.name = "nr_requests", .mode = 0644 },
- .show = queue_requests_show,
- .store = queue_requests_store,
-};
-
-static struct queue_sysfs_entry queue_ra_entry = {
- .attr = {.name = "read_ahead_kb", .mode = 0644 },
- .show = queue_ra_show,
- .store = queue_ra_store,
-};
-
-static struct queue_sysfs_entry queue_max_sectors_entry = {
- .attr = {.name = "max_sectors_kb", .mode = 0644 },
- .show = queue_max_sectors_show,
- .store = queue_max_sectors_store,
-};
-
-static struct queue_sysfs_entry queue_max_hw_sectors_entry = {
- .attr = {.name = "max_hw_sectors_kb", .mode = 0444 },
- .show = queue_max_hw_sectors_show,
-};
-
-static struct queue_sysfs_entry queue_max_segments_entry = {
- .attr = {.name = "max_segments", .mode = 0444 },
- .show = queue_max_segments_show,
-};
-
-static struct queue_sysfs_entry queue_max_discard_segments_entry = {
- .attr = {.name = "max_discard_segments", .mode = 0444 },
- .show = queue_max_discard_segments_show,
-};
+#define QUEUE_RO_ENTRY(_prefix, _name) \
+static struct queue_sysfs_entry _prefix##_entry = { \
+ .attr = { .name = _name, .mode = 0444 }, \
+ .show = _prefix##_show, \
+};
+
+#define QUEUE_RW_ENTRY(_prefix, _name) \
+static struct queue_sysfs_entry _prefix##_entry = { \
+ .attr = { .name = _name, .mode = 0644 }, \
+ .show = _prefix##_show, \
+ .store = _prefix##_store, \
+};
+
+QUEUE_RW_ENTRY(queue_requests, "nr_requests");
+QUEUE_RW_ENTRY(queue_ra, "read_ahead_kb");
+QUEUE_RW_ENTRY(queue_max_sectors, "max_sectors_kb");
+QUEUE_RO_ENTRY(queue_max_hw_sectors, "max_hw_sectors_kb");
+QUEUE_RO_ENTRY(queue_max_segments, "max_segments");
+QUEUE_RO_ENTRY(queue_max_integrity_segments, "max_integrity_segments");
+QUEUE_RO_ENTRY(queue_max_segment_size, "max_segment_size");
+QUEUE_RW_ENTRY(elv_iosched, "scheduler");
+
+QUEUE_RO_ENTRY(queue_logical_block_size, "logical_block_size");
+QUEUE_RO_ENTRY(queue_physical_block_size, "physical_block_size");
+QUEUE_RO_ENTRY(queue_chunk_sectors, "chunk_sectors");
+QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
+QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
+
+QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
+QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
+QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
+QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
+QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
+
+QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
+QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
+QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
+
+QUEUE_RO_ENTRY(queue_zoned, "zoned");
+QUEUE_RO_ENTRY(queue_nr_zones, "nr_zones");
+QUEUE_RO_ENTRY(queue_max_open_zones, "max_open_zones");
+QUEUE_RO_ENTRY(queue_max_active_zones, "max_active_zones");
+
+QUEUE_RW_ENTRY(queue_nomerges, "nomerges");
+QUEUE_RW_ENTRY(queue_rq_affinity, "rq_affinity");
+QUEUE_RW_ENTRY(queue_poll, "io_poll");
+QUEUE_RW_ENTRY(queue_poll_delay, "io_poll_delay");
+QUEUE_RW_ENTRY(queue_wc, "write_cache");
+QUEUE_RO_ENTRY(queue_fua, "fua");
+QUEUE_RO_ENTRY(queue_dax, "dax");
+QUEUE_RW_ENTRY(queue_io_timeout, "io_timeout");
+QUEUE_RW_ENTRY(queue_wb_lat, "wbt_lat_usec");
-static struct queue_sysfs_entry queue_max_integrity_segments_entry = {
- .attr = {.name = "max_integrity_segments", .mode = 0444 },
- .show = queue_max_integrity_segments_show,
-};
-
-static struct queue_sysfs_entry queue_max_segment_size_entry = {
- .attr = {.name = "max_segment_size", .mode = 0444 },
- .show = queue_max_segment_size_show,
-};
-
-static struct queue_sysfs_entry queue_iosched_entry = {
- .attr = {.name = "scheduler", .mode = 0644 },
- .show = elv_iosched_show,
- .store = elv_iosched_store,
-};
+#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
+QUEUE_RW_ENTRY(blk_throtl_sample_time, "throttle_sample_time");
+#endif
+/* legacy alias for logical_block_size: */
static struct queue_sysfs_entry queue_hw_sector_size_entry = {
.attr = {.name = "hw_sector_size", .mode = 0444 },
.show = queue_logical_block_size_show,
};
-static struct queue_sysfs_entry queue_logical_block_size_entry = {
- .attr = {.name = "logical_block_size", .mode = 0444 },
- .show = queue_logical_block_size_show,
-};
-
-static struct queue_sysfs_entry queue_physical_block_size_entry = {
- .attr = {.name = "physical_block_size", .mode = 0444 },
- .show = queue_physical_block_size_show,
-};
-
-static struct queue_sysfs_entry queue_chunk_sectors_entry = {
- .attr = {.name = "chunk_sectors", .mode = 0444 },
- .show = queue_chunk_sectors_show,
-};
-
-static struct queue_sysfs_entry queue_io_min_entry = {
- .attr = {.name = "minimum_io_size", .mode = 0444 },
- .show = queue_io_min_show,
-};
-
-static struct queue_sysfs_entry queue_io_opt_entry = {
- .attr = {.name = "optimal_io_size", .mode = 0444 },
- .show = queue_io_opt_show,
-};
-
-static struct queue_sysfs_entry queue_discard_granularity_entry = {
- .attr = {.name = "discard_granularity", .mode = 0444 },
- .show = queue_discard_granularity_show,
-};
-
-static struct queue_sysfs_entry queue_discard_max_hw_entry = {
- .attr = {.name = "discard_max_hw_bytes", .mode = 0444 },
- .show = queue_discard_max_hw_show,
-};
-
-static struct queue_sysfs_entry queue_discard_max_entry = {
- .attr = {.name = "discard_max_bytes", .mode = 0644 },
- .show = queue_discard_max_show,
- .store = queue_discard_max_store,
-};
-
-static struct queue_sysfs_entry queue_discard_zeroes_data_entry = {
- .attr = {.name = "discard_zeroes_data", .mode = 0444 },
- .show = queue_discard_zeroes_data_show,
-};
-
-static struct queue_sysfs_entry queue_write_same_max_entry = {
- .attr = {.name = "write_same_max_bytes", .mode = 0444 },
- .show = queue_write_same_max_show,
-};
-
-static struct queue_sysfs_entry queue_write_zeroes_max_entry = {
- .attr = {.name = "write_zeroes_max_bytes", .mode = 0444 },
- .show = queue_write_zeroes_max_show,
-};
-
-static struct queue_sysfs_entry queue_zone_append_max_entry = {
- .attr = {.name = "zone_append_max_bytes", .mode = 0444 },
- .show = queue_zone_append_max_show,
-};
-
-static struct queue_sysfs_entry queue_nonrot_entry = {
- .attr = {.name = "rotational", .mode = 0644 },
- .show = queue_show_nonrot,
- .store = queue_store_nonrot,
-};
-
-static struct queue_sysfs_entry queue_zoned_entry = {
- .attr = {.name = "zoned", .mode = 0444 },
- .show = queue_zoned_show,
-};
-
-static struct queue_sysfs_entry queue_nr_zones_entry = {
- .attr = {.name = "nr_zones", .mode = 0444 },
- .show = queue_nr_zones_show,
-};
-
-static struct queue_sysfs_entry queue_max_open_zones_entry = {
- .attr = {.name = "max_open_zones", .mode = 0444 },
- .show = queue_max_open_zones_show,
-};
-
-static struct queue_sysfs_entry queue_max_active_zones_entry = {
- .attr = {.name = "max_active_zones", .mode = 0444 },
- .show = queue_max_active_zones_show,
-};
-
-static struct queue_sysfs_entry queue_nomerges_entry = {
- .attr = {.name = "nomerges", .mode = 0644 },
- .show = queue_nomerges_show,
- .store = queue_nomerges_store,
-};
-
-static struct queue_sysfs_entry queue_rq_affinity_entry = {
- .attr = {.name = "rq_affinity", .mode = 0644 },
- .show = queue_rq_affinity_show,
- .store = queue_rq_affinity_store,
-};
-
-static struct queue_sysfs_entry queue_iostats_entry = {
- .attr = {.name = "iostats", .mode = 0644 },
- .show = queue_show_iostats,
- .store = queue_store_iostats,
-};
-
-static struct queue_sysfs_entry queue_random_entry = {
- .attr = {.name = "add_random", .mode = 0644 },
- .show = queue_show_random,
- .store = queue_store_random,
-};
-
-static struct queue_sysfs_entry queue_poll_entry = {
- .attr = {.name = "io_poll", .mode = 0644 },
- .show = queue_poll_show,
- .store = queue_poll_store,
-};
-
-static struct queue_sysfs_entry queue_poll_delay_entry = {
- .attr = {.name = "io_poll_delay", .mode = 0644 },
- .show = queue_poll_delay_show,
- .store = queue_poll_delay_store,
-};
-
-static struct queue_sysfs_entry queue_wc_entry = {
- .attr = {.name = "write_cache", .mode = 0644 },
- .show = queue_wc_show,
- .store = queue_wc_store,
-};
-
-static struct queue_sysfs_entry queue_fua_entry = {
- .attr = {.name = "fua", .mode = 0444 },
- .show = queue_fua_show,
-};
-
-static struct queue_sysfs_entry queue_dax_entry = {
- .attr = {.name = "dax", .mode = 0444 },
- .show = queue_dax_show,
-};
-
-static struct queue_sysfs_entry queue_io_timeout_entry = {
- .attr = {.name = "io_timeout", .mode = 0644 },
- .show = queue_io_timeout_show,
- .store = queue_io_timeout_store,
-};
-
-static struct queue_sysfs_entry queue_wb_lat_entry = {
- .attr = {.name = "wbt_lat_usec", .mode = 0644 },
- .show = queue_wb_lat_show,
- .store = queue_wb_lat_store,
-};
-
-#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
-static struct queue_sysfs_entry throtl_sample_time_entry = {
- .attr = {.name = "throttle_sample_time", .mode = 0644 },
- .show = blk_throtl_sample_time_show,
- .store = blk_throtl_sample_time_store,
-};
-#endif
+QUEUE_RW_ENTRY(queue_nonrot, "rotational");
+QUEUE_RW_ENTRY(queue_iostats, "iostats");
+QUEUE_RW_ENTRY(queue_random, "add_random");
+QUEUE_RW_ENTRY(queue_stable_writes, "stable_writes");
static struct attribute *queue_attrs[] = {
&queue_requests_entry.attr,
&queue_max_discard_segments_entry.attr,
&queue_max_integrity_segments_entry.attr,
&queue_max_segment_size_entry.attr,
- &queue_iosched_entry.attr,
+ &elv_iosched_entry.attr,
&queue_hw_sector_size_entry.attr,
&queue_logical_block_size_entry.attr,
&queue_physical_block_size_entry.attr,
&queue_nomerges_entry.attr,
&queue_rq_affinity_entry.attr,
&queue_iostats_entry.attr,
+ &queue_stable_writes_entry.attr,
&queue_random_entry.attr,
&queue_poll_entry.attr,
&queue_wc_entry.attr,
&queue_poll_delay_entry.attr,
&queue_io_timeout_entry.attr,
#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
- &throtl_sample_time_entry.attr,
+ &blk_throtl_sample_time_entry.attr,
#endif
NULL,
};
if (q->elevator) {
ioc_clear_queue(q);
__elevator_exit(q, q->elevator);
- q->elevator = NULL;
}
/*
blk_free_queue_stats(q->stats);
- if (queue_is_mq(q))
+ if (queue_is_mq(q)) {
+ struct blk_mq_hw_ctx *hctx;
+ int i;
+
cancel_delayed_work_sync(&q->requeue_work);
+ queue_for_each_hw_ctx(q, hctx, i)
+ cancel_delayed_work_sync(&hctx->run_work);
+ }
+
blk_exit_queue(q);
blk_queue_free_zone_bitmaps(q);
int ret;
struct device *dev = disk_to_dev(disk);
struct request_queue *q = disk->queue;
- bool has_elevator = false;
if (WARN_ON(!q))
return -ENXIO;
percpu_ref_switch_to_percpu(&q->q_usage_counter);
}
+ blk_queue_update_readahead(q);
+
ret = blk_trace_init_sysfs(dev);
if (ret)
return ret;
kobject_put(&dev->kobj);
return ret;
}
- has_elevator = true;
}
blk_queue_flag_set(QUEUE_FLAG_REGISTERED, q);
/* Now everything is ready and send out KOBJ_ADD uevent */
kobject_uevent(&q->kobj, KOBJ_ADD);
- if (has_elevator)
+ if (q->elevator)
kobject_uevent(&q->elevator->kobj, KOBJ_ADD);
mutex_unlock(&q->sysfs_lock);
git.samba.org / sfrench / cifs-2.6.git / blobdiff