On Tue, Jun 03, 2014 at 03:04:32PM +0900, Namjae Jeon wrote: > IMHO, If our goal is to solve the problem of xfstests, we can use only > "ext4: fix ZERO_RANGE test failure in data journalling" patch without > i_write_mutex patch. And we can add lock for fallocate on next kernel > after checking with sufficient time. I thought this patch required i_write_mutex to avoid a race where another thread modifies an inode while filemap_write_and_wait_range() is running? I agree that we could drop the i_write_mutex and add a call to ext4_force_commit() which should make the xfstest failure rarer, but the race would still be there, yes? - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html