• Kinglong Mee's avatar
    SUNRPC: cleanup ida information when removing sunrpc module · c929ea0b
    Kinglong Mee authored
    After removing sunrpc module, I get many kmemleak information as,
    unreferenced object 0xffff88003316b1e0 (size 544):
      comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s)
      hex dump (first 32 bytes):
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      backtrace:
        [<ffffffffb0cfb58a>] kmemleak_alloc+0x4a/0xa0
        [<ffffffffb03507fe>] kmem_cache_alloc+0x15e/0x1f0
        [<ffffffffb0639baa>] ida_pre_get+0xaa/0x150
        [<ffffffffb0639cfd>] ida_simple_get+0xad/0x180
        [<ffffffffc06054fb>] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd]
        [<ffffffffc0605e1d>] lockd+0x4d/0x270 [lockd]
        [<ffffffffc06061e5>] param_set_timeout+0x55/0x100 [lockd]
        [<ffffffffc06cba24>] svc_defer+0x114/0x3f0 [sunrpc]
        [<ffffffffc06cbbe7>] svc_defer+0x2d7/0x3f0 [sunrpc]
        [<ffffffffc06c71da>] rpc_show_info+0x8a/0x110 [sunrpc]
        [<ffffffffb044a33f>] proc_reg_write+0x7f/0xc0
        [<ffffffffb038e41f>] __vfs_write+0xdf/0x3c0
        [<ffffffffb0390f1f>] vfs_write+0xef/0x240
        [<ffffffffb0392fbd>] SyS_write+0xad/0x130
        [<ffffffffb0d06c37>] entry_SYSCALL_64_fastpath+0x1a/0xa9
        [<ffffffffffffffff>] 0xffffffffffffffff
    
    I found, the ida information (dynamic memory) isn't cleanup.
    Signed-off-by: 's avatarKinglong Mee <kinglongmee@gmail.com>
    Fixes: 2f048db4 ("SUNRPC: Add an identifier for struct rpc_clnt")
    Cc: stable@vger.kernel.org # v3.12+
    Signed-off-by: 's avatarTrond Myklebust <trond.myklebust@primarydata.com>
    c929ea0b