[PATCH 4.19 362/422] f2fs: fix remount problem of option io_bits

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From: Chengguang Xu <cgxu519@xxxxxxx>

[ Upstream commit c6b1867b1da3b1203b4c49988afeebdcbdf65499 ]

Currently we show mount option "io_bits=%u" as "io_size=%uKB",
it will cause option parsing problem(unrecognized mount option)
in remount.

Signed-off-by: Chengguang Xu <cgxu519@xxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/f2fs/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c5d28e92d146e..b05e10c332b7e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1336,7 +1336,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 				from_kgid_munged(&init_user_ns,
 					F2FS_OPTION(sbi).s_resgid));
 	if (F2FS_IO_SIZE_BITS(sbi))
-		seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi));
+		seq_printf(seq, ",io_bits=%u",
+				F2FS_OPTION(sbi).write_io_size_bits);
 #ifdef CONFIG_F2FS_FAULT_INJECTION
 	if (test_opt(sbi, FAULT_INJECTION)) {
 		seq_printf(seq, ",fault_injection=%u",
-- 
2.20.1






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