f2fs: sysfs: support discard_io_aware

[linux-2.6-microblaze.git] / fs / f2fs / sysfs.c

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 417fae9..7099ffa 100644 (file)
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -516,6 +516,13 @@ out:
                return count;
        }
 
+       if (!strcmp(a->attr.name, "discard_io_aware")) {
+               if (t >= DPOLICY_IO_AWARE_MAX)
+                       return -EINVAL;
+               *ui = t;
+               return count;
+       }
+
        if (!strcmp(a->attr.name, "migration_granularity")) {
                if (t == 0 || t > sbi->segs_per_sec)
                        return -EINVAL;
@@ -926,6 +933,7 @@ DCC_INFO_GENERAL_RW_ATTR(discard_io_aware_gran);
 DCC_INFO_GENERAL_RW_ATTR(discard_urgent_util);
 DCC_INFO_GENERAL_RW_ATTR(discard_granularity);
 DCC_INFO_GENERAL_RW_ATTR(max_ordered_discard);
+DCC_INFO_GENERAL_RW_ATTR(discard_io_aware);
 
 /* NM_INFO ATTR */
 NM_INFO_RW_ATTR(max_roll_forward_node_blocks, max_rf_node_blocks);
@@ -1074,6 +1082,7 @@ static struct attribute *f2fs_attrs[] = {
        ATTR_LIST(discard_urgent_util),
        ATTR_LIST(discard_granularity),
        ATTR_LIST(max_ordered_discard),
+       ATTR_LIST(discard_io_aware),
        ATTR_LIST(pending_discard),
        ATTR_LIST(gc_mode),
        ATTR_LIST(ipu_policy),