https://bugzilla.kernel.org/show_bug.cgi?id=216050
--- Comment #29 from Chao Yu (c...@kernel.org) ---
>From 8a351359b0834f048dc35b5f53276c14a35e4ff9 Mon Sep 17 00:00:00 2001
From: Chao Yu <c...@kernel.org>
Date: Fri, 1 Jul 2022 08:58:50 +0800
Subject: [PATCH] f2fs: add debug log for gc_thread deadloop
---
fs/f2fs/data.c | 3 +++
fs/f2fs/gc.c | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c448c3ee7ac3..6cb4ebbbae8b 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1303,7 +1303,10 @@ struct page *f2fs_get_lock_data_page(struct inode
*inode, pgoff_t index,
{
struct address_space *mapping = inode->i_mapping;
struct page *page;
+ int i = 0;
repeat:
+ if (++i % 1000 == 0)
+ printf("f2fs_get_lock_data_page i:%d\n", i);
page = f2fs_get_read_data_page(inode, index, 0, for_write);
if (IS_ERR(page))
return page;
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index f4aa3c88118b..d252de051810 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1470,6 +1470,7 @@ static int gc_data_segment(struct f2fs_sb_info *sbi,
struct f2fs_summary *sum,
int phase = 0;
int submitted = 0;
unsigned int usable_blks_in_seg = f2fs_usable_blks_in_seg(sbi, segno);
+ int i = 0;
start_addr = START_BLOCK(sbi, segno);
@@ -1555,6 +1556,9 @@ static int gc_data_segment(struct f2fs_sb_info *sbi,
struct f2fs_summary *sum,
continue;
}
+ if (++i % 1000 == 0)
+ printf("gc_data_segment i:%d\n", i);
+
data_page = f2fs_get_read_data_page(inode,
start_bidx, REQ_RAHEAD, true);
f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
--
2.25.1
--
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