• Andrew Vagin's avatar
    mm/vmscan.c: don't forget to free shrinker->nr_deferred · ae393321
    Andrew Vagin authored
    This leak was added by commit 1d3d4437 ("vmscan: per-node deferred
    work").
    
    unreferenced object 0xffff88006ada3bd0 (size 8):
      comm "criu", pid 14781, jiffies 4295238251 (age 105.641s)
      hex dump (first 8 bytes):
        00 00 00 00 00 00 00 00                          ........
      backtrace:
        [<ffffffff8170caee>] kmemleak_alloc+0x5e/0xc0
        [<ffffffff811c0527>] __kmalloc+0x247/0x310
        [<ffffffff8117848c>] register_shrinker+0x3c/0xa0
        [<ffffffff811e115b>] sget+0x5ab/0x670
        [<ffffffff812532f4>] proc_mount+0x54/0x170
        [<ffffffff811e1893>] mount_fs+0x43/0x1b0
        [<ffffffff81202dd2>] vfs_kern_mount+0x72/0x110
        [<ffffffff81202e89>] kern_mount_data+0x19/0x30
        [<ffffffff812530a0>] pid_ns_prepare_proc+0x20/0x40
        [<ffffffff81083c56>] alloc_pid+0x466/0x4a0
        [<ffffffff8105aeda>] copy_process+0xc6a/0x1860
        [<ffffffff8105beab>] do_fork+0x8b/0x370
        [<ffffffff8105c1a6>] SyS_clone+0x16/0x20
        [<ffffffff8171f739>] stub_clone+0x69/0x90
        [<ffffffffffffffff>] 0xffffffffffffffff
    Signed-off-by: default avatarAndrew Vagin <avagin@openvz.org>
    Cc: Mel Gorman <mgorman@suse.de>
    Cc: Michal Hocko <mhocko@suse.cz>
    Cc: Rik van Riel <riel@redhat.com>
    Cc: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Glauber Costa <glommer@openvz.org>
    Cc: Chuck Lever <chuck.lever@oracle.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    ae393321
vmscan.c 107 KB