[PATCH 2/2] f2fs: fix to restore old mount option in ->remount_fs

[Chao Yu]

From: Chao Yu <yuch...@huawei.com>

This patch fixes to restore old mount option once we encounter failure
in ->remount_fs.

Signed-off-by: Chao Yu <yuch...@huawei.com>
---
 fs/f2fs/super.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index d8357ba19159..36c5e582c1f2 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1340,6 +1340,11 @@ static int f2fs_remount(struct super_block *sb, int 
*flags, char *data)
        bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
        int old_whint_mode = sbi->whint_mode;
        int old_alloc_mode = sbi->alloc_mode;
+       int old_inline_xattr_size = sbi->inline_xattr_size;
+       block_t old_root_reserved_blocks = sbi->root_reserved_blocks;
+       kuid_t old_resuid = sbi->s_resuid;
+       kgid_t old_resgid = sbi->s_resgid;
+       int old_write_io_size_bits = sbi->write_io_size_bits;
 #ifdef CONFIG_F2FS_FAULT_INJECTION
        struct f2fs_fault_info ffi = sbi->fault_info;
 #endif
@@ -1489,6 +1494,11 @@ static int f2fs_remount(struct super_block *sb, int 
*flags, char *data)
                sbi->s_qf_names[i] = s_qf_names[i];
        }
 #endif
+       sbi->write_io_size_bits = old_write_io_size_bits;
+       sbi->s_resgid = old_resgid;
+       sbi->s_resuid = old_resuid;
+       sbi->root_reserved_blocks = old_root_reserved_blocks;
+       sbi->inline_xattr_size = old_inline_xattr_size;
        sbi->alloc_mode = old_alloc_mode;
        sbi->whint_mode = old_whint_mode;
        sbi->mount_opt = org_mount_opt;
-- 
2.14.1.145.gb3622a4ee