From 7cc47e64d3d69786a2711a4767e26b26ba63d7ed Mon Sep 17 00:00:00 2001
From: Mingzhe Zou <mingzhe.zou@easystack.cn>
Date: Mon, 20 Nov 2023 13:24:58 +0800
Subject: [PATCH] bcache: fixup init dirty data errors
Git-commit: 7cc47e64d3d69786a2711a4767e26b26ba63d7ed
Patch-mainline: v6.7-rc3
References: git-fixes
We found that after long run, the dirty_data of the bcache device
will have errors. This error cannot be eliminated unless re-register.
We also found that reattach after detach, this error can accumulate.
In bch_sectors_dirty_init(), all inode <= d->id keys will be recounted
again. This is wrong, we only need to count the keys of the current
device.
(Coly Li: rebased for Linux 5.14 based SUSE kernel)
Fixes: b144e45fc576 ("bcache: make bch_sectors_dirty_init() to be multithreaded")
Signed-off-by: Mingzhe Zou <mingzhe.zou@easystack.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20231120052503.6122-6-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
drivers/md/bcache/writeback.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -991,8 +991,11 @@ void bch_sectors_dirty_init(struct bcach
op.count = 0;
for_each_key_filter(&c->root->keys,
- k, &iter, bch_ptr_invalid)
+ k, &iter, bch_ptr_invalid) {
+ if (KEY_INODE(k) != op.inode)
+ continue;
sectors_dirty_init_fn(&op.op, c->root, k);
+ }
rw_unlock(0, c->root);
return;