fuse: update attr_version counter on fuse_notify_inval_inode()

mainline inclusion
from mainline-v5.8-rc1
commit 5ddd9ced
category: bugfix
bugzilla: 37636
CVE: NA

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A GETATTR request can race with FUSE_NOTIFY_INVAL_INODE, resulting in the
attribute cache being updated with stale information after the
invalidation.

Fix this by bumping the attribute version in fuse_reverse_inval_inode().

Reported-by: Krzysztof Rusek <rusek@9livesdata.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

Conflict: fs/fuse/inode.c
a. commit f15ecfef ("fuse: Introduce fi->lock to protect write related fields")
is not backported, 'fi->lock' do not exist.
b. commit 4510d86f ("fuse: Convert fc->attr_version into atomic64_t") is not
backported, 'fc->lock' is needed to read 'fc->attr_version'.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>