Sometimes, if cp_error is set, there remains under-writeback pages, resulting in
kernel hang in put_super.
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/super.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 9962021..aa2d3d9 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -582,6 +582,13 @@ static void f2fs_put_super(struct super_block *sb)
f2fs_leave_shrinker(sbi);
mutex_unlock(&sbi->umount_mutex);
+ /* our cp_error case, we can wait for any writeback page */
+ if (get_pages(sbi, F2FS_WRITEBACK)) {
+ f2fs_submit_merged_bio(sbi, DATA, WRITE);
+ f2fs_submit_merged_bio(sbi, NODE, WRITE);
+ f2fs_submit_merged_bio(sbi, META, WRITE);
+ }
+
iput(sbi->node_inode);
iput(sbi->meta_inode);
--
2.6.3
--
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