[PATCH 1/6] blk-sysfs: Add 'chunk_sectors' to sysfs attributes
From: Hannes Reinecke <hare@suse.de>
Date: 2016-07-19 13:20:34
Also in:
linux-scsi
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
The queue limits already have a 'chunk_sectors' setting, so we should be presenting it via sysfs. Signed-off-by: Hannes Reinecke <hare@suse.de> --- block/blk-sysfs.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 9920596..73200b8 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c@@ -130,6 +130,11 @@ static ssize_t queue_physical_block_size_show(struct request_queue *q, char *pag return queue_var_show(queue_physical_block_size(q), page); } +static ssize_t queue_chunk_sectors_show(struct request_queue *q, char *page) +{ + return queue_var_show(q->limits.chunk_sectors, page); +} + static ssize_t queue_io_min_show(struct request_queue *q, char *page) { return queue_var_show(queue_io_min(q), page);
@@ -438,6 +443,11 @@ static struct queue_sysfs_entry queue_physical_block_size_entry = { .show = queue_physical_block_size_show, }; +static struct queue_sysfs_entry queue_chunk_sectors_entry = { + .attr = {.name = "chunk_sectors", .mode = S_IRUGO }, + .show = queue_chunk_sectors_show, +}; + static struct queue_sysfs_entry queue_io_min_entry = { .attr = {.name = "minimum_io_size", .mode = S_IRUGO }, .show = queue_io_min_show,
@@ -528,6 +538,7 @@ static struct attribute *default_attrs[] = { &queue_hw_sector_size_entry.attr, &queue_logical_block_size_entry.attr, &queue_physical_block_size_entry.attr, + &queue_chunk_sectors_entry.attr, &queue_io_min_entry.attr, &queue_io_opt_entry.attr, &queue_discard_granularity_entry.attr,
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1.8.5.6