------------[ cut here ]------------
WARNING: CPU: 3 PID: 579 at fs/f2fs/segment.c:2832 new_curseg+0x5e8/0x6dc
pc : new_curseg+0x5e8/0x6dc
Call trace:
new_curseg+0x5e8/0x6dc
f2fs_allocate_data_block+0xa54/0xe28
do_write_page+0x6c/0x194
f2fs_do_write_node_page+0x38/0x78
__write_node_page+0x248/0x6d4
f2fs_sync_node_pages+0x524/0x72c
f2fs_write_checkpoint+0x4bc/0x9b0
__checkpoint_and_complete_reqs+0x80/0x244
issue_checkpoint_thread+0x8c/0xec
kthread+0x114/0x1bc
ret_from_fork+0x10/0x20
get_new_segment() detects inconsistent status in between free_segmap
and free_secmap, let's record such error into super block, and bail
out get_new_segment() instead of continue using the segment.
Signed-off-by: Chao Yu <c...@kernel.org>
---
fs/f2fs/segment.c | 6 +++++-
include/linux/f2fs_fs.h | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 34382447f717..037d06d58fda 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2842,7 +2842,11 @@ static int get_new_segment(struct f2fs_sb_info *sbi,
}
got_it:
/* set it as dirty segment in free segmap */
- f2fs_bug_on(sbi, test_bit(segno, free_i->free_segmap));
+ if (test_bit(segno, free_i->free_segmap)) {
+ ret = -EFSCORRUPTED;
+ f2fs_stop_checkpoint(sbi, false,
STOP_CP_REASON_CORRUPTED_FREE_BITMAP);
+ goto out_unlock;
+ }
/* no free section in conventional device or conventional zone */
if (new_sec && pinning &&
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index c24f8bc01045..5206d63b3386 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -78,6 +78,7 @@ enum stop_cp_reason {
STOP_CP_REASON_UPDATE_INODE,
STOP_CP_REASON_FLUSH_FAIL,
STOP_CP_REASON_NO_SEGMENT,
+ STOP_CP_REASON_CORRUPTED_FREE_BITMAP,
STOP_CP_REASON_MAX,
};
--
2.49.0
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