bcachefs: bch_sb_field_errors

Add a new superblock section to keep counts of errors seen since
filesystem creation: we'll be addingcounters for every distinct fsck
error.

The new superblock section has entries of the for [ id, count,
time_of_last_error ]; this is intended to let us see what errors are
occuring - and getting fixed - via show-super output.

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

1 files changed, 8 insertions, 4 deletions

diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index e16b5bc12d26..1b5c2a1bd68a 100644
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -49,6 +49,7 @@
 #include "recovery.h"
 #include "replicas.h"
 #include "sb-clean.h"
+#include "sb-errors.h"
 #include "sb-members.h"
 #include "snapshot.h"
 #include "subvolume.h"
@@ -400,7 +401,7 @@ static int __bch2_fs_read_write(struct bch_fs *c, bool early)
 
 	bch_info(c, "going read-write");
 
-	ret = bch2_members_v2_init(c);
+	ret = bch2_sb_members_v2_init(c);
 	if (ret)
 		goto err;
 
@@ -481,6 +482,7 @@ static void __bch2_fs_free(struct bch_fs *c)
 		bch2_time_stats_exit(&c->times[i]);
 
 	bch2_free_pending_node_rewrites(c);
+	bch2_fs_sb_errors_exit(c);
 	bch2_fs_counters_exit(c);
 	bch2_fs_snapshots_exit(c);
 	bch2_fs_quota_exit(c);
@@ -713,6 +715,7 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts opts)
 	bch2_fs_quota_init(c);
 	bch2_fs_ec_init_early(c);
 	bch2_fs_move_init(c);
+	bch2_fs_sb_errors_init_early(c);
 
 	INIT_LIST_HEAD(&c->list);
 
@@ -729,8 +732,8 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts opts)
 
 	INIT_LIST_HEAD(&c->journal_iters);
 
-	INIT_LIST_HEAD(&c->fsck_errors);
-	mutex_init(&c->fsck_error_lock);
+	INIT_LIST_HEAD(&c->fsck_error_msgs);
+	mutex_init(&c->fsck_error_msgs_lock);
 
 	seqcount_init(&c->gc_pos_lock);
 
@@ -840,6 +843,7 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts opts)
 	}
 
 	ret = bch2_fs_counters_init(c) ?:
+	    bch2_fs_sb_errors_init(c) ?:
 	    bch2_io_clock_init(&c->io_clock[READ]) ?:
 	    bch2_io_clock_init(&c->io_clock[WRITE]) ?:
 	    bch2_fs_journal_init(&c->journal) ?:
@@ -942,7 +946,7 @@ int bch2_fs_start(struct bch_fs *c)
 
 	mutex_lock(&c->sb_lock);
 
-	ret = bch2_members_v2_init(c);
+	ret = bch2_sb_members_v2_init(c);
 	if (ret) {
 		mutex_unlock(&c->sb_lock);
 		goto err;