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-rw-r--r--fs/fat/fatent.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 81815487e04d..31f08ab62c56 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -310,7 +310,12 @@ void fat_ent_access_init(struct super_block *sb)
static void mark_fsinfo_dirty(struct super_block *sb)
{
- sb->s_dirt = 1;
+ struct msdos_sb_info *sbi = MSDOS_SB(sb);
+
+ if (sb->s_flags & MS_RDONLY || sbi->fat_bits != 32)
+ return;
+
+ __mark_inode_dirty(sbi->fsinfo_inode, I_DIRTY_SYNC);
}
static inline int fat_ent_update_ptr(struct super_block *sb,