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Commit a987c7ca authored by Younger Liu's avatar Younger Liu Committed by Linus Torvalds
Browse files

ocfs2: fix ocfs2_sync_file() if filesystem is readonly 



If filesystem is readonly, there is no need to flush drive's caches or
force any uncommitted transactions.

[akpm@linux-foundation.org: return -EROFS, not 0]
Signed-off-by: default avatarYounger Liu <younger.liucn@gmail.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 79040cad

fs/ocfs2/file.c

+3 −0
Original line number Diff line number Diff line
@@ -185,6 +185,9 @@ static int ocfs2_sync_file(struct file *file, loff_t start, loff_t end, 
			      file->f_path.dentry->d_name.name,

			      (unsigned long long)datasync);



	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))

		return -EROFS;



	err = filemap_write_and_wait_range(inode->i_mapping, start, end);

	if (err)

		return err;