Hi all,
After merging the mm tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:
mm/backing-dev.c: In function 'wb_stats_show':
mm/backing-dev.c:175:33: error: 'struct bdi_writeback' has no member named 'memcg_css'
175 | cgroup_ino(wb->memcg_css->cgroup),
| ^~
Caused by commit
3acd401af0c9 ("writeback: support retrieving per group debug writeback stats of bdi")
from the mm-unstable branch of the mm tree.
I have applied the following (hack) patch for today.
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Tue, 23 Apr 2024 10:06:13 +1000
Subject: [PATCH] fixup for "writeback: support retrieving per group debug
writeback stats of bdi"
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
mm/backing-dev.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 481886f47164..af8c81adf7a4 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -172,7 +172,11 @@ static void wb_stats_show(struct seq_file *m, struct bdi_writeback *wb,
"b_more_io: %10lu\n"
"b_dirty_time: %10lu\n"
"state: %10lx\n\n",
+#ifdef CONFIG_CGROUP_WRITEBACK
cgroup_ino(wb->memcg_css->cgroup),
+#else
+ (ino_t)0,
+#endif
K(stats->nr_writeback),
K(stats->nr_reclaimable),
K(stats->wb_thresh),
--
2.43.0
--
Cheers,
Stephen Rothwell
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