Offering: HULK
hulk inclusion
category: bugfix
bugzilla: 188865, https://gitee.com/openeuler/kernel/issues/I76JSK

--------------------------------

When recovery intents, it may capture some deferred ops and commit the new
intent items, if recovery intents fails, there will be no done item drop
the reference to the new intent item. This leads to a memory leak as
fllows:

unreferenced object 0xffff888016719108 (size 432):
  comm "mount", pid 529, jiffies 4294706839 (age 144.463s)
  hex dump (first 32 bytes):
    08 91 71 16 80 88 ff ff 08 91 71 16 80 88 ff ff  ..q.......q.....
    18 91 71 16 80 88 ff ff 18 91 71 16 80 88 ff ff  ..q.......q.....
  backtrace:
    [<ffffffff8230c68f>] xfs_efi_init+0x18f/0x1d0
    [<ffffffff8230c720>] xfs_extent_free_create_intent+0x50/0x150
    [<ffffffff821b671a>] xfs_defer_create_intents+0x16a/0x340
    [<ffffffff821bac3e>] xfs_defer_ops_capture_and_commit+0x8e/0xad0
    [<ffffffff82322bb9>] xfs_cui_item_recover+0x819/0x980
    [<ffffffff823289b6>] xlog_recover_process_intents+0x246/0xb70
    [<ffffffff8233249a>] xlog_recover_finish+0x8a/0x9a0
    [<ffffffff822eeafb>] xfs_log_mount_finish+0x2bb/0x4a0
    [<ffffffff822c0f4f>] xfs_mountfs+0x14bf/0x1e70
    [<ffffffff822d1f80>] xfs_fs_fill_super+0x10d0/0x1b20
    [<ffffffff81a21fa2>] get_tree_bdev+0x3d2/0x6d0
    [<ffffffff81a1ee09>] vfs_get_tree+0x89/0x2c0
    [<ffffffff81a9f35f>] path_mount+0xecf/0x1800
    [<ffffffff81a9fd83>] do_mount+0xf3/0x110
    [<ffffffff81aa00e4>] __x64_sys_mount+0x154/0x1f0
    [<ffffffff83968739>] do_syscall_64+0x39/0x80

Fix it by abort intent items in capture list that don't have a done item
when recovery intents fail. If transaction that have deferred ops is
commmit fails in xfs_defer_ops_capture_and_commit(), defer capture would
not added to capture list, it also need abort too.
Signed-off-by: NLong Li <leo.lilong@huawei.com>