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UPSTREAM: io_uring: import 5.15-stable io_uring

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This imports the io_uring codebase from 5.15.85, wholesale. Changes
from that code base:

- Drop IOCB_ALLOC_CACHE, we don't have that in 5.10.
- Drop MKDIRAT/SYMLINKAT/LINKAT. Would require further VFS backports,
  and we don't support these in 5.10 to begin with.
- sock_from_file() old style calling convention.
- Use compat_get_bitmap() only for CONFIG_COMPAT=y

Change-Id: I7ce5226d6b39763ffc246fd6357cece9aafd4b59
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 788d082426)
Bug: 268174392
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Jens Axboe
2022-12-22 14:30:11 -07:00
committed by Greg Kroah-Hartman
parent b5959be936
commit ec3f24f4eb
15 changed files with 6855 additions and 5617 deletions
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kernel/fork.c
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@@ -961,6 +961,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
tsk->splice_pipe = NULL;
tsk->task_frag.page = NULL;
tsk->wake_q.next = NULL;
tsk->pf_io_worker = NULL;
account_kernel_stack(tsk, 1);