Hi, it seems that ext4/btrfs code for fallocate doesn't check for immutable/append inode flag. I think it's possible to do an fallocate operation even if the immutable flag is turned on. You can think about this case: an application opens a file for read/write, meanwhile a user set the immutable flag and then the application calls fallocate. Other cases shouldn't happen because if the immutable flag is turned on before the application opens the file, then the application can't open the file in read/write mode and therefore it can't do an fallocate operation. Sincerely I haven't tried but I saw this kind of error in my own fs that have a similar code.
Regards, Marco -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
