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block: Add sysfs entry for fua support
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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1900fcc461
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@ -491,6 +491,11 @@ static ssize_t queue_wc_store(struct request_queue *q, const char *page,
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return count;
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}
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static ssize_t queue_fua_show(struct request_queue *q, char *page)
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{
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return sprintf(page, "%u\n", test_bit(QUEUE_FLAG_FUA, &q->queue_flags));
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}
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static ssize_t queue_dax_show(struct request_queue *q, char *page)
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{
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return queue_var_show(blk_queue_dax(q), page);
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@ -659,6 +664,11 @@ static struct queue_sysfs_entry queue_wc_entry = {
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.store = queue_wc_store,
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};
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static struct queue_sysfs_entry queue_fua_entry = {
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.attr = {.name = "fua", .mode = S_IRUGO },
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.show = queue_fua_show,
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};
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static struct queue_sysfs_entry queue_dax_entry = {
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.attr = {.name = "dax", .mode = S_IRUGO },
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.show = queue_dax_show,
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@ -708,6 +718,7 @@ static struct attribute *default_attrs[] = {
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&queue_random_entry.attr,
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&queue_poll_entry.attr,
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&queue_wc_entry.attr,
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&queue_fua_entry.attr,
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&queue_dax_entry.attr,
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&queue_wb_lat_entry.attr,
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&queue_poll_delay_entry.attr,
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