bcachefs: sysfs internal/trigger_journal_writes

another debugging knob - trigger the journal to do ready journal writes

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

diff --git a/fs/bcachefs/sysfs.c b/fs/bcachefs/sysfs.c
index 93ca74d108b17e8709254d2c2b5e44763d29c3cb..3f54203f0499462d80f2f415a7bd22c889e078b0 100644 (file)
--- a/fs/bcachefs/sysfs.c
+++ b/fs/bcachefs/sysfs.c
@@ -140,6 +140,7 @@ write_attribute(trigger_gc);
 write_attribute(trigger_discards);
 write_attribute(trigger_invalidates);
 write_attribute(trigger_journal_flush);
+write_attribute(trigger_journal_writes);
 write_attribute(trigger_btree_cache_shrink);
 write_attribute(trigger_btree_key_cache_shrink);
 rw_attribute(gc_gens_pos);
@@ -497,6 +498,9 @@ STORE(bch2_fs)
                bch2_journal_meta(&c->journal);
        }
 
+       if (attr == &sysfs_trigger_journal_writes)
+               bch2_journal_do_writes(&c->journal);
+
 #ifdef CONFIG_BCACHEFS_TESTS
        if (attr == &sysfs_perf_test) {
                char *tmp = kstrdup(buf, GFP_KERNEL), *p = tmp;
@@ -615,6 +619,7 @@ struct attribute *bch2_fs_internal_files[] = {
        &sysfs_trigger_discards,
        &sysfs_trigger_invalidates,
        &sysfs_trigger_journal_flush,
+       &sysfs_trigger_journal_writes,
        &sysfs_trigger_btree_cache_shrink,
        &sysfs_trigger_btree_key_cache_shrink,