From 3e48d8d2540d4c63461ec4cafb8f65355b6f7b57 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Wed, 4 Nov 2020 09:45:54 +0000 Subject: btrfs: discard: reschedule work after sysfs param update After sysfs updates discard's iops_limit or kbps_limit it also needs to adjust current timer through rescheduling, otherwise the discard work may wait for a long time for the previous timer to expire or bumped by someone else. Reviewed-by: Josef Bacik Signed-off-by: Pavel Begunkov Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/sysfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/sysfs.c') diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 620fddfd7096..640d17f6ace1 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -458,7 +458,8 @@ static ssize_t btrfs_discard_iops_limit_store(struct kobject *kobj, return -EINVAL; WRITE_ONCE(discard_ctl->iops_limit, iops_limit); - + btrfs_discard_calc_delay(discard_ctl); + btrfs_discard_schedule_work(discard_ctl, true); return len; } BTRFS_ATTR_RW(discard, iops_limit, btrfs_discard_iops_limit_show, @@ -488,7 +489,7 @@ static ssize_t btrfs_discard_kbps_limit_store(struct kobject *kobj, return -EINVAL; WRITE_ONCE(discard_ctl->kbps_limit, kbps_limit); - + btrfs_discard_schedule_work(discard_ctl, true); return len; } BTRFS_ATTR_RW(discard, kbps_limit, btrfs_discard_kbps_limit_show, -- cgit v1.2.3