f2fs: add a sysfs entry to control max_discards

[mirror_ubuntu-bionic-kernel.git] / fs / f2fs / super.c

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index e9aa3f79f42547eeea61d4feafd91b89ffa70931..a022412c66eafe6b7f5561e62de2e482c0348efe 100644 (file)
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -175,6 +175,7 @@ F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle);
 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
+F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, max_small_discards, max_discards);
 
 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
 static struct attribute *f2fs_attrs[] = {
@@ -183,6 +184,7 @@ static struct attribute *f2fs_attrs[] = {
        ATTR_LIST(gc_no_gc_sleep_time),
        ATTR_LIST(gc_idle),
        ATTR_LIST(reclaim_segments),
+       ATTR_LIST(max_small_discards),
        NULL,
 };