On Sat, Jun 04, 2016 at 08:32:42PM +0100, Al Viro wrote: > On Sat, Jun 04, 2016 at 07:53:21PM +0100, Salah Triki wrote: > > As VFS expects, i_count field is incremented when the named inode is found. > > VFS expects no such thing. Incidentally, you have neither bothered to > check other filesystems nor cared to look at fs/inode.c. OK, suppose you > have found a huge multi-filesystem bug - such things happen from time to > time. But you have not even bothered to test your conjecture; this "fix" > had never been tried or even compiled. > > What actually happens is that iget_locked() acquires a reference to inode. > That reference is either dropped by iget_failed() (called by befs_iget() > in case of failure to read and initialized the sucker) or used up by > d_add() as a reference to hold dentry->d_inode. > > Similar situation holds for other filesystems; they do not need to manipulate > i_count at all.
thanks for your comments
