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-rw-r--r--fs/ext4/fsync.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index fc938eb..a8bc47f 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -98,8 +98,13 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
trace_ext4_sync_file_enter(file, datasync);
- if (inode->i_sb->s_flags & MS_RDONLY)
+ if (inode->i_sb->s_flags & MS_RDONLY) {
+ /* Make sure that we read updated s_mount_flags value */
+ smp_rmb();
+ if (EXT4_SB(inode->i_sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
+ ret = -EROFS;
goto out;
+ }
if (!journal) {
ret = generic_file_fsync(file, start, end, datasync);
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