bcachefs: sysfs trigger_recalc_capacity

For bug diagnosis

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/sysfs.c b/fs/bcachefs/sysfs.c
index dfae5eda7a4cb071c8238076f1fcaa704d04f703..1d0c0f24a7b9ce7c361f834e0b7181397b823004 100644 (file)
--- a/fs/bcachefs/sysfs.c
+++ b/fs/bcachefs/sysfs.c
@@ -146,8 +146,9 @@ write_attribute(trigger_journal_flush);
 write_attribute(trigger_journal_writes);
 write_attribute(trigger_btree_cache_shrink);
 write_attribute(trigger_btree_key_cache_shrink);
-write_attribute(trigger_freelist_wakeup);
 write_attribute(trigger_btree_updates);
+write_attribute(trigger_freelist_wakeup);
+write_attribute(trigger_recalc_capacity);
 read_attribute(gc_gens_pos);
 
 read_attribute(uuid);
@@ -428,6 +429,12 @@ STORE(bch2_fs)
        if (attr == &sysfs_trigger_freelist_wakeup)
                closure_wake_up(&c->freelist_wait);
 
+       if (attr == &sysfs_trigger_recalc_capacity) {
+               down_read(&c->state_lock);
+               bch2_recalc_capacity(c);
+               up_read(&c->state_lock);
+       }
+
 #ifdef CONFIG_BCACHEFS_TESTS
        if (attr == &sysfs_perf_test) {
                char *tmp = kstrdup(buf, GFP_KERNEL), *p = tmp;
@@ -553,8 +560,9 @@ struct attribute *bch2_fs_internal_files[] = {
        &sysfs_trigger_journal_writes,
        &sysfs_trigger_btree_cache_shrink,
        &sysfs_trigger_btree_key_cache_shrink,
-       &sysfs_trigger_freelist_wakeup,
        &sysfs_trigger_btree_updates,
+       &sysfs_trigger_freelist_wakeup,
+       &sysfs_trigger_recalc_capacity,
 
        &sysfs_gc_gens_pos,