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authorLinus Walleij <linus.walleij@linaro.org>2018-02-24 23:45:56 +0100
committerJacek Anaszewski <jacek.anaszewski@gmail.com>2018-03-11 20:01:55 +0100
commitd1ed7c558612630ce4c48e440a6fdd8d4785f6a3 (patch)
treea67aea132d5f6c58314bf1ebbe43896adf2c8f3c /drivers/ide
parent2dd1ea5b8a492121dc7cb3cb2bc17c22415260e6 (diff)
downloadlinux-stericsson-d1ed7c558612630ce4c48e440a6fdd8d4785f6a3.tar.gz
leds: Extends disk trigger for reads and writes
This adds two new disk triggers for triggering on reads and writes respectively, named "disk-read" and "disk-write". The use case comes from working on the D-Link DNS-313 NAS box. This features an RGB LED for disk activity. with these two triggers I can couple the green LED to read activity and the red LED to write activity, which gives the appropriate user feedback about what is happening on the disk. When tested it gave exactly the feedback desired. The in-kernel interface is simply changed to pass a bool indicating if the activity is write activity and update each trigger (and the composite "disk-activity" trigger) depending on what is passed in. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-disk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 188d1b03715d..67bc72d78fbf 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -187,7 +187,7 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
BUG_ON(blk_rq_is_passthrough(rq));
- ledtrig_disk_activity();
+ ledtrig_disk_activity(rq_data_dir(rq) == WRITE);
pr_debug("%s: %sing: block=%llu, sectors=%u\n",
drive->name, rq_data_dir(rq) == READ ? "read" : "writ",