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authorPavel Begunkov <asml.silence@gmail.com>2020-11-04 10:45:54 +0100
committerDavid Sterba <dsterba@suse.com>2020-12-08 15:54:05 +0100
commit3e48d8d2540d4c63461ec4cafb8f65355b6f7b57 (patch)
tree0a138bd65c1d6a4395d2b5747f63109d567d1fc6 /fs/btrfs/sysfs.c
parentbtrfs: don't miss async discards after scheduled work override (diff)
downloadlinux-3e48d8d2540d4c63461ec4cafb8f65355b6f7b57.tar.xz
linux-3e48d8d2540d4c63461ec4cafb8f65355b6f7b57.zip
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 <josef@toxicpanda.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/sysfs.c')
-rw-r--r--fs/btrfs/sysfs.c5
1 files changed, 3 insertions, 2 deletions
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,